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Perovskite</title> <meta name="description" content="Search results for: Perovskite"> <meta name="keywords" content="Perovskite"> <meta name="viewport" content="width=device-width, initial-scale=1, minimum-scale=1, maximum-scale=1, user-scalable=no"> <meta charset="utf-8"> <link href="https://cdn.waset.org/favicon.ico" type="image/x-icon" rel="shortcut icon"> <link href="https://cdn.waset.org/static/plugins/bootstrap-4.2.1/css/bootstrap.min.css" rel="stylesheet"> <link href="https://cdn.waset.org/static/plugins/fontawesome/css/all.min.css" rel="stylesheet"> <link href="https://cdn.waset.org/static/css/site.css?v=150220211555" rel="stylesheet"> </head> <body> <header> <div class="container"> <nav class="navbar navbar-expand-lg navbar-light"> <a class="navbar-brand" href="https://waset.org"> <img src="https://cdn.waset.org/static/images/wasetc.png" alt="Open Science Research Excellence" title="Open Science Research Excellence" /> </a> <button class="d-block d-lg-none navbar-toggler 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id="custom-search-input"> <div class="input-group"> <i class="fas fa-search"></i> <input type="text" class="search-query" name="q" placeholder="Author, Title, Abstract, Keywords" value="Perovskite"> <input type="submit" class="btn_search" value="Search"> </div> </div> </form> </div> </div> <div class="row mt-3"> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Commenced</strong> in January 2007</div> </div> </div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Frequency:</strong> Monthly</div> </div> </div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Edition:</strong> International</div> </div> </div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Paper Count:</strong> 115</div> </div> </div> </div> <h1 class="mt-3 mb-3 text-center" style="font-size:1.6rem;">Search results for: Perovskite</h1> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">115</span> Morphology Optimization and Photophysics Study in Air-Processed Perovskite Solar Cells</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Soumitra%20Satapathi">Soumitra Satapathi</a>, <a href="https://publications.waset.org/abstracts/search?q=Anubhav%20Raghav"> Anubhav Raghav</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Perovskite solar cell technology has passed through a phase of unprecedented growth in the efficiency scale from 3.8% to above 22% within a half decade. This technology has drawn tremendous research interest. It has been observed that performances of perovskite based solar cells are extremely dependent on the morphology and crystallinity of the perovskite layer. It has also been observed that device lifetime depends on the perovskite morphology; devices with larger perovskite grains degrade slowly than those of the smaller ones. Various methods of perovskite growth have been applied to achieve the most appropriate morphology necessary for high efficient solar cells. The recent progress in morphology optimization by various methods emphasizing on grain sizes, stoichiometry, and ambient compatibility as well as photophysics study in air-processed perovskite solar cells will be discussed. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=perovskite%20solar%20cells" title="perovskite solar cells">perovskite solar cells</a>, <a href="https://publications.waset.org/abstracts/search?q=morphology%20optimization" title=" morphology optimization"> morphology optimization</a>, <a href="https://publications.waset.org/abstracts/search?q=photophysics%20study" title=" photophysics study"> photophysics study</a>, <a href="https://publications.waset.org/abstracts/search?q=air-processed%20solar%20cells" title=" air-processed solar cells"> air-processed solar cells</a> </p> <a href="https://publications.waset.org/abstracts/103171/morphology-optimization-and-photophysics-study-in-air-processed-perovskite-solar-cells" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/103171.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">164</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">114</span> Key Roles of the N-Type Oxide Layer in Hybrid Perovskite Solar Cells</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Thierry%20Pauport%C3%A9">Thierry Pauporté</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Wide bandgap n-type oxide layers (TiO2, SnO2, ZnO etc.) play key roles in perovskite solar cells. They act as electron transport layers, and they permit the charge separation. They are also the substrate for the preparation of perovskite in the direct architecture. Therefore, they have a strong influence on the perovskite loading, its crystallinity and they can induce a degradation phenomenon upon annealing. The interface between the oxide and the perovskite is important, and the quality of this heterointerface must be optimized to limit the recombination of charges phenomena and performance losses. One can also play on the oxide and use two oxide contact layers for improving the device stability and durability. These aspects will be developed and illustrated on the basis of recent results obtained at Chimie-ParisTech. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=oxide" title="oxide">oxide</a>, <a href="https://publications.waset.org/abstracts/search?q=hybrid%20perovskite" title=" hybrid perovskite"> hybrid perovskite</a>, <a href="https://publications.waset.org/abstracts/search?q=solar%20cells" title=" solar cells"> solar cells</a>, <a href="https://publications.waset.org/abstracts/search?q=impedance" title=" impedance"> impedance</a> </p> <a href="https://publications.waset.org/abstracts/65396/key-roles-of-the-n-type-oxide-layer-in-hybrid-perovskite-solar-cells" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/65396.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">315</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">113</span> Number of Perovskite Layers and the Effect of Antisolvent on Perovskite Solar Cell Efficiency</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ece%20%C3%87etin">Ece Çetin</a>, <a href="https://publications.waset.org/abstracts/search?q=%C4%B0smail%20Boz"> İsmail Boz</a>, <a href="https://publications.waset.org/abstracts/search?q=Mehtap%20%C5%9Eafak%20Boro%C4%9Flu"> Mehtap Şafak Boroğlu</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Energy is one of the most important components of production processes, economic activities, and daily life. Non-renewable energy sources cause serious environmental problems with the increase of greenhouse gases. Obtaining energy from renewable sources is also essential for sustainable economic growth. Solar energy is also an important renewable energy source with its unlimited and clean features. In this study, the effect of 1, 2, and 3 layers of perovskite film number and antisolvent dripping on perovskite based solar cell efficiency was investigated. The yield increased as the number of perovskite films increased. In addition, the yields obtained with the antisolvent dripped in the last 5 seconds are higher than the ones dropped in the last 17 seconds. The highest efficiency was obtained with 3 perovskite films, and antisolvent dropped in the last 5 seconds. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=antisolvent" title="antisolvent">antisolvent</a>, <a href="https://publications.waset.org/abstracts/search?q=efficiency" title=" efficiency"> efficiency</a>, <a href="https://publications.waset.org/abstracts/search?q=perovskite" title=" perovskite"> perovskite</a>, <a href="https://publications.waset.org/abstracts/search?q=solar%20cell" title=" solar cell"> solar cell</a> </p> <a href="https://publications.waset.org/abstracts/155240/number-of-perovskite-layers-and-the-effect-of-antisolvent-on-perovskite-solar-cell-efficiency" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/155240.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">109</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">112</span> Investigation of Length Effect on Power Conversion Efficiency of Perovskite Solar Cells Composed of ZnO Nanowires</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=W.%20S.%20Li">W. S. Li</a>, <a href="https://publications.waset.org/abstracts/search?q=S.%20T.%20Yang"> S. T. Yang</a>, <a href="https://publications.waset.org/abstracts/search?q=H.%20C.%20Cheng"> H. C. Cheng</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The power conversion efficiency (PCE) of the perovskite solar cells has been achieved by inserting vertically-aligned ZnO nanowires (NWs) between the cathode and the active layer and shows better solar cells performance. Perovskite solar cells have drawn significant attention due to the superb efficiency and low-cost fabrication process. In this experiment, ZnO nanowires are used as the electron transport layer (ETL) due to its low temperature process. The main idea of this thesis is utilizing the 3D structures of the hydrothermally-grown ZnO nanowires to increase the junction area to improve the photovoltaic performance of the perovskite solar cells. The infiltration and the surface coverage of the perovskite precursor solution changed as tuning the length of the ZnO nanowires. It is revealed that the devices with ZnO nanowires of 150 nm demonstrated the best PCE of 8.46 % under the AM 1.5G illumination (100 mW/cm2). <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=hydrothermally-grown%20ZnO%20nanowires" title="hydrothermally-grown ZnO nanowires">hydrothermally-grown ZnO nanowires</a>, <a href="https://publications.waset.org/abstracts/search?q=perovskite%20solar%20cells" title=" perovskite solar cells"> perovskite solar cells</a>, <a href="https://publications.waset.org/abstracts/search?q=low%20temperature%20process" title=" low temperature process"> low temperature process</a>, <a href="https://publications.waset.org/abstracts/search?q=pinholes" title=" pinholes"> pinholes</a> </p> <a href="https://publications.waset.org/abstracts/57346/investigation-of-length-effect-on-power-conversion-efficiency-of-perovskite-solar-cells-composed-of-zno-nanowires" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/57346.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">329</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">111</span> Hysteresis Effect in Organometallic Perovskite Solar Cells with Mesoscopic NiO as a Hole Transport Layer</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=D.%20C.%20Asebiah">D. C. Asebiah</a>, <a href="https://publications.waset.org/abstracts/search?q=D.%20Saranin"> D. Saranin</a>, <a href="https://publications.waset.org/abstracts/search?q=S.%20Karazhanov"> S. Karazhanov</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20R.%20Tameev"> A. R. Tameev</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20Kah"> M. Kah</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this paper, the mesoscopic NiO was used as a hole transport layer in the inverted planar organometallic hybrid perovskite solar cell to study the effect of hysteresis. The devices we fabricated have the structures Fluorine Tin Oxide (FTO)/mesoscopic NiO/perovskite/[6,6]-phenyl C₆₁-butyric acid methyl ester (PC₆₁BM) photovoltaic device. The perovskite solar cell was done by toluene air (TLA) method and horn sonication for the dispersion of the NiO nanoparticles in deionized water. The power conversion efficiency was 12.07% under 1.5 AM illumination. We report hysteresis in the in current-voltage dependence of the solar cells with mesoscopic NiO as a hole transport layer. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=perovskite" title="perovskite">perovskite</a>, <a href="https://publications.waset.org/abstracts/search?q=mesoscopic" title=" mesoscopic"> mesoscopic</a>, <a href="https://publications.waset.org/abstracts/search?q=hysteresis" title=" hysteresis"> hysteresis</a>, <a href="https://publications.waset.org/abstracts/search?q=toluene%20air" title=" toluene air"> toluene air</a> </p> <a href="https://publications.waset.org/abstracts/101215/hysteresis-effect-in-organometallic-perovskite-solar-cells-with-mesoscopic-nio-as-a-hole-transport-layer" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/101215.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">170</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">110</span> Mechanism of Charge Transport in the Interface of CsSnI₃-FASnI₃ Perovskite Based Solar Cell</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Seyedeh%20Mozhgan%20Seyed-Talebi">Seyedeh Mozhgan Seyed-Talebi</a>, <a href="https://publications.waset.org/abstracts/search?q=Weng-Kent%20Chan"> Weng-Kent Chan</a>, <a href="https://publications.waset.org/abstracts/search?q=Hsin-Yi%20Tiffany%20Chen"> Hsin-Yi Tiffany Chen</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Lead-free perovskite photovoltaic (PV) technology employing non-toxic tin halide perovskite absorbers is pivotal for advancing perovskite solar cell (PSC) commercialization. Despite challenges posed by perovskite sensitivity to oxygen and humidity, our study utilizes DFT calculations using VASP and NanoDCAL software and SCAPS-1D simulations to elucidate the charge transport mechanism at the interface of CsSnI₃-FASnI₃ heterojunction. Results reveal how inherent electric fields facilitate efficient carrier transport, reducing recombination losses. We predict optimized power conversion efficiencies (PCEs) and highlight the potential of CsSnI3-FASnI3 heterojunctions for cost-effective and efficient charge transport layer-free (CTLF) photovoltaic devices. Our study provides insights into the future direction of recognizing more efficient, nontoxic heterojunction perovskite devices. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=charge%20transport%20layer%20free" title="charge transport layer free">charge transport layer free</a>, <a href="https://publications.waset.org/abstracts/search?q=CsSnI%E2%82%83-FASnI%E2%82%83%20heterojunction" title=" CsSnI₃-FASnI₃ heterojunction"> CsSnI₃-FASnI₃ heterojunction</a>, <a href="https://publications.waset.org/abstracts/search?q=lead-free%20perovskite%20solar%20cell" title=" lead-free perovskite solar cell"> lead-free perovskite solar cell</a>, <a href="https://publications.waset.org/abstracts/search?q=tin%20halide%20perovskite." title=" tin halide perovskite."> tin halide perovskite.</a>, <a href="https://publications.waset.org/abstracts/search?q=Charge%20transport%20layer%20free" title=" Charge transport layer free"> Charge transport layer free</a> </p> <a href="https://publications.waset.org/abstracts/186055/mechanism-of-charge-transport-in-the-interface-of-cssni3-fasni3-perovskite-based-solar-cell" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/186055.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">45</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">109</span> Morphology Study of Inverted Planar Heterojunction Perovskite Solar Cells in Sequential Deposition</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Asmat%20Nawaz">Asmat Nawaz</a>, <a href="https://publications.waset.org/abstracts/search?q=Ali%20Koray%20Erdinc"> Ali Koray Erdinc</a>, <a href="https://publications.waset.org/abstracts/search?q=Burak%20Gultekin"> Burak Gultekin</a>, <a href="https://publications.waset.org/abstracts/search?q=Muhammad%20Tayyib"> Muhammad Tayyib</a>, <a href="https://publications.waset.org/abstracts/search?q=Ceylan%20Zafer"> Ceylan Zafer</a>, <a href="https://publications.waset.org/abstracts/search?q=Kaiying%20Wang"> Kaiying Wang</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20Nadeem%20Akram"> M. Nadeem Akram</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this study, a sequential deposition process is used for the fabrication of PEDOT: PSS based inverted planar perovskite solar cell. A small amount of additive deionized water (DI-H<sub>2</sub>O) was added into PbI<sub>2</sub> + Dimethyl formamide (DMF) precursor solution in order to increase the solubility of PbI<sub>2</sub> in DMF, and finally to manipulate the surface morphology of the perovskite films. A morphology transition from needle like structure to hexagonal plates, and then needle-like again has been observed as the DI-H2O was added continuously (0.0 wt% to 3.0wt%). The latter one leads to full surface coverage of the perovskite, which is essential for high performance solar cell. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=charge%20carrier%20diffusion%20lengths" title="charge carrier diffusion lengths">charge carrier diffusion lengths</a>, <a href="https://publications.waset.org/abstracts/search?q=Methylamonium%20lead%20iodide" title=" Methylamonium lead iodide"> Methylamonium lead iodide</a>, <a href="https://publications.waset.org/abstracts/search?q=precursor%20composition" title=" precursor composition"> precursor composition</a>, <a href="https://publications.waset.org/abstracts/search?q=perovskite%20solar%20cell" title=" perovskite solar cell"> perovskite solar cell</a>, <a href="https://publications.waset.org/abstracts/search?q=sequential%20deposition" title=" sequential deposition"> sequential deposition</a> </p> <a href="https://publications.waset.org/abstracts/54517/morphology-study-of-inverted-planar-heterojunction-perovskite-solar-cells-in-sequential-deposition" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/54517.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">459</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">108</span> Device Modelling and Analysis of Eco-friendly Inverted Solar Cell Structure Using Valency Ordered Inorganic Double Perovskite Material</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Sindhu%20S%20Nair">Sindhu S Nair</a>, <a href="https://publications.waset.org/abstracts/search?q=Atul%20Thakur"> Atul Thakur</a>, <a href="https://publications.waset.org/abstracts/search?q=Preeti%20Thakur"> Preeti Thakur</a>, <a href="https://publications.waset.org/abstracts/search?q=Trukhanov%20Alex"> Trukhanov Alex</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Perovskite-based absorbing materials that are organic, inorganic, or hybrid have gained interest as an appealing candidate for the development of solar cell devices. Lead-based perovskites are among the most promising materials, but their application is plagued with toxicity and stability concerns. Most of the perovskite solar cell consists of conventional (n-i-p) structure with organic or inorganic charge transport materials. The commercial application of such device is limited due to higher J-V hysteresis and the need for high temperature during fabrication. This numerical analysis primarily directs to investigate the performance of various inorganic lead-free valency ordered double perovskite absorber materials and to develop an inverted perovskite solar cell device structure. Simulation efforts using SCAPS-1D was carried out with various organic and inorganic charge transport materials with absorber layer materials, and their performance has been evaluated for various factors of thickness, absorber thickness, absorber defect density, and interface defect density to achieve the optimized structure. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=perovskite%20materials" title="perovskite materials">perovskite materials</a>, <a href="https://publications.waset.org/abstracts/search?q=solar%20cell" title=" solar cell"> solar cell</a>, <a href="https://publications.waset.org/abstracts/search?q=inverted%20solar%20cell" title=" inverted solar cell"> inverted solar cell</a>, <a href="https://publications.waset.org/abstracts/search?q=inorganic%20perovskite%20solar%20cell%20materials" title=" inorganic perovskite solar cell materials"> inorganic perovskite solar cell materials</a>, <a href="https://publications.waset.org/abstracts/search?q=cell%20efficiency" title=" cell efficiency"> cell efficiency</a> </p> <a href="https://publications.waset.org/abstracts/166962/device-modelling-and-analysis-of-eco-friendly-inverted-solar-cell-structure-using-valency-ordered-inorganic-double-perovskite-material" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/166962.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">83</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">107</span> Preparation and Characterization of Hybrid Perovskite Enhanced with PVDF for Pressure Sensing</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mohamed%20E.%20Harb">Mohamed E. Harb</a>, <a href="https://publications.waset.org/abstracts/search?q=Enas%20Moustafa"> Enas Moustafa</a>, <a href="https://publications.waset.org/abstracts/search?q=Shaker%20Ebrahim"> Shaker Ebrahim</a>, <a href="https://publications.waset.org/abstracts/search?q=Moataz%20Soliman"> Moataz Soliman</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this paper pressure detectors were synthesized and characterized using hybrid perovskite/PVDF composites as an active layer. Methylammonium lead iodide (MAPbI₃) was synthesized from methylammonium iodide (MAI) (CH₃NH₃I) and lead iodide (PbI₂). Composites of perovskite/PVDF using different weight ratio were prepared as the active material. PVDF with weights percentages of 6%, 8%, and 10% was used. All prepared materials were investigated by x-ray diffraction (XRD), Fourier transforms infrared spectrum (FTIR) and scanning electron microscopy (SEM). A Versastat 4 Potentiostat Galvanostat instrument was used to perform the current-voltage characteristics of the fabricated sensors. The pressure sensors exhibited a voltage increase with applying different forces. Also, the current-voltage characteristics (CV) showed different effects with applying forces. So, the results showed a good pressure sensing performance. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=perovskite%20semiconductor" title="perovskite semiconductor">perovskite semiconductor</a>, <a href="https://publications.waset.org/abstracts/search?q=hybrid%20perovskite" title=" hybrid perovskite"> hybrid perovskite</a>, <a href="https://publications.waset.org/abstracts/search?q=PVDF" title=" PVDF"> PVDF</a>, <a href="https://publications.waset.org/abstracts/search?q=Pressure%20sensing" title=" Pressure sensing"> Pressure sensing</a> </p> <a href="https://publications.waset.org/abstracts/96658/preparation-and-characterization-of-hybrid-perovskite-enhanced-with-pvdf-for-pressure-sensing" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/96658.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">207</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">106</span> Hydrogen Permeability of BSCY Proton-Conducting Perovskite Membrane </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=M.%20Heidari">M. Heidari</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20Safekordi"> A. Safekordi</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20Zamaniyan"> A. Zamaniyan</a>, <a href="https://publications.waset.org/abstracts/search?q=E.%20Ganji%20Babakhani"> E. Ganji Babakhani</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20Amanipour"> M. Amanipour</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Perovskite-type membrane Ba<sub>0.5</sub>Sr<sub>0.5</sub>Ce<sub>0.9</sub>Y<sub>0.1</sub>O<sub>3-δ</sub> (BSCY) was successfully synthesized by liquid citrate method. The hydrogen permeation and stability of BSCY perovskite-type membranes were studied at high temperatures. The phase structure of the powder was characterized by X-ray diffraction (XRD). Scanning electron microscopy (SEM) was used to characterize microstructures of the membrane sintered under various conditions. SEM results showed that increasing in sintering temperature, formed dense membrane with clear grains. XRD results for BSCY membrane that sintered in 1150 °C indicated single phase perovskite structure with orthorhombic configuration, and SEM results showed dense structure with clear grain size which is suitable for permeation tests. Partial substitution of Sr with Ba in SCY structure improved the hydrogen permeation flux through the membrane due to the larger ionic radius of Ba<sup>2+</sup>. BSCY membrane shows high hydrogen permeation flux of 1.6 ml/min.cm<sup>2</sup> at 900 °C and partial pressure of 0.6. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=hydrogen%20separation" title="hydrogen separation">hydrogen separation</a>, <a href="https://publications.waset.org/abstracts/search?q=perovskite" title=" perovskite"> perovskite</a>, <a href="https://publications.waset.org/abstracts/search?q=proton%20conducting%20membrane." title=" proton conducting membrane."> proton conducting membrane.</a> </p> <a href="https://publications.waset.org/abstracts/54608/hydrogen-permeability-of-bscy-proton-conducting-perovskite-membrane" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/54608.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">341</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">105</span> Hot Air Flow Annealing of MAPbI₃ Perovskite: Structural and Optical Properties </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mouad%20Ouafi">Mouad Ouafi</a>, <a href="https://publications.waset.org/abstracts/search?q=Lahoucine%20Atourki"> Lahoucine Atourki</a>, <a href="https://publications.waset.org/abstracts/search?q=Larbi%20Laanab"> Larbi Laanab</a>, <a href="https://publications.waset.org/abstracts/search?q=Erika%20Vega"> Erika Vega</a>, <a href="https://publications.waset.org/abstracts/search?q=Miguel%20Mollar"> Miguel Mollar</a>, <a href="https://publications.waset.org/abstracts/search?q=Bernabe%20Marib"> Bernabe Marib</a>, <a href="https://publications.waset.org/abstracts/search?q=Boujemaa%20Jaber"> Boujemaa Jaber</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Despite the astonishing emergence of the methylammonium lead triiodide perovskite as a promising light harvester for solar cells, their physical properties in solution-processed MAPbI₃ are still crucial and need to be improved. The objective of this work is to investigate the hot airflow effect during the growth of MAPbI₃ films using the spin-coating process on their structural, optical and morphological proprieties. The experimental results show that many physical proprieties of the perovskite strongly depend on the air flow temperature and the optimization which has a beneficial effect on the perovskite quality. In fact, a clear improvement of the crystallinity and the crystallite size of MAPbI₃ perovskite is demonstrated by the XRD analyses, when the airflow temperature is increased up to 100°C. Alternatively, as far as the surface morphology is concerned, SEM micrographs show that significant homogenous nucleation, uniform surface distribution and pin holes free with highest surface coverture of 98% are achieved when the airflow temperature reaches 100°C. At this temperature, the improvement is also observed when considering the optical properties of the films. By contrast, a remarkable degradation of the MAPbI₃ perovskites associated to the PbI₂ phase formation is noticed, when the hot airflow temperature is higher than 100°C, especially 300°C. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=hot%20air%20flow" title="hot air flow">hot air flow</a>, <a href="https://publications.waset.org/abstracts/search?q=crystallinity" title=" crystallinity"> crystallinity</a>, <a href="https://publications.waset.org/abstracts/search?q=surface%20coverage" title=" surface coverage"> surface coverage</a>, <a href="https://publications.waset.org/abstracts/search?q=perovskite%20morphology" title=" perovskite morphology"> perovskite morphology</a> </p> <a href="https://publications.waset.org/abstracts/102435/hot-air-flow-annealing-of-mapbi3-perovskite-structural-and-optical-properties" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/102435.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">163</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">104</span> Lead-Free Inorganic Cesium Tin-Germanium Triiodide Perovskites for Photovoltaic Application</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Seyedeh%20Mozhgan%20Seyed-Talebi">Seyedeh Mozhgan Seyed-Talebi</a>, <a href="https://publications.waset.org/abstracts/search?q=Javad%20Beheshtian"> Javad Beheshtian</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The toxicity of lead associated with the lifecycle of perovskite solar cells (PSCs<span dir="RTL">(</span> is a serious concern which may prove to be a major hurdle in the path toward their commercialization<span dir="RTL">.</span> The current proposed lead-free PSCs including Ag(I), Bi(III), Sb(III), Ti(IV), Ge(II), and Sn(II) low-toxicity cations are still plagued with the critical issues of poor stability and low efficiency. This is mainly because of their chemical stability. In the present research, utilization of all inorganic CsSnGeI<sub>3</sub> based materials offers the advantages to enhance resistance of device to degradation, reduce the cost of cells, and minimize the carrier recombination. The presence of inorganic halide perovskite improves the photovoltaic parameters of PCSs via improved surface coverage and stability. The inverted structure of simulated devices using a 1D simulator like solar cell capacitance simulator (SCAPS) version 3308 involves TCOHTL/Perovskite/ETL/Au contact layer. PEDOT:PSS, PCBM, and CsSnGeI<sub>3</sub> used as hole transporting layer (HTL), electron transporting layer (ETL), and perovskite absorber layer in the inverted structure for the first time. The holes are injected from highly stable and air tolerant Sn<sub>0.5</sub>Ge<sub>0.5</sub>I<sub>3</sub> perovskite composition to HTM and electrons from the perovskite to ETL. Simulation results revealed a great dependence of power conversion efficiency (PCE) on the thickness and defect density of perovskite layer. Here the effect of an increase in operating temperature from 300 K to 400 K on the performance of CsSnGeI<sub>3</sub> based perovskite devices is investigated. Comparison between simulated CsSnGeI<sub>3</sub> based PCSs and similar real testified devices with spiro-OMeTAD as HTL showed that the extraction of carriers at the interfaces of perovskite absorber depends on the energy level mismatches between perovskite and HTL/ETL. We believe that optimization results reported here represent a critical avenue for fabricating the stable, low-cost, efficient, and eco-friendly all-inorganic Cs-Sn-Ge based lead-free perovskite devices. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=hole%20transporting%20layer" title="hole transporting layer">hole transporting layer</a>, <a href="https://publications.waset.org/abstracts/search?q=lead-free" title=" lead-free"> lead-free</a>, <a href="https://publications.waset.org/abstracts/search?q=perovskite%20solar%20cell" title=" perovskite solar cell"> perovskite solar cell</a>, <a href="https://publications.waset.org/abstracts/search?q=SCAPS-1D" title=" SCAPS-1D"> SCAPS-1D</a>, <a href="https://publications.waset.org/abstracts/search?q=Sn-Ge%20based" title=" Sn-Ge based"> Sn-Ge based</a> </p> <a href="https://publications.waset.org/abstracts/129775/lead-free-inorganic-cesium-tin-germanium-triiodide-perovskites-for-photovoltaic-application" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/129775.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">155</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">103</span> DFT and SCAPS Analysis of an Efficient Lead-Free Inorganic CsSnI₃ Based Perovskite Solar Cell by Modification of Hole Transporting Layer</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Seyedeh%20Mozhgan%20Seyed%20Talebi">Seyedeh Mozhgan Seyed Talebi</a>, <a href="https://publications.waset.org/abstracts/search?q=Chih%20-Hao%20Lee"> Chih -Hao Lee</a> </p> <p class="card-text"><strong>Abstract:</strong></p> With an abrupt rise in the power conservation efficiency (PCE) of perovskite solar cells (PSCs) within a short span of time, the toxicity of lead was raised as a major hurdle in the path toward their commercialization. In the present research, a systematic investigation of the electrical and optical characteristics of the all-inorganic CsSnI₃ perovskite absorber layer was performed with the Vienna Ab Initio Simulation Package (VASP) using the projector-augmented wave method. The presence of inorganic halide perovskite offers the advantages of enhancing the degradation resistance of the device, reducing the cost of cells, and minimizing the recombination of generated carriers. The simulated standard device using a 1D simulator like solar cell capacitance simulator (SCAPS) version 3308 involves FTO/n-TiO₂/CsSnI₃ Perovskite absorber/Spiro OmeTAD HTL/Au contact layer. The variation in the device design key parameters such as the thickness and defect density of perovskite absorber, hole transport layer and electron transport layer and interfacial defects are examined with their impact on the photovoltaic characteristic parameters. The effect of an increase in operating temperature from 300 K to 400 K on the performance of CsSnI3-based perovskite devices is also investigated. The optimized standard device at room temperature shows the highest PCE of 25.18 % with FF of 75.71 %, Voc of 0.96 V, and Jsc of 34.67 mA/cm². The outcomes and interpretation of different inorganic Cu-based HTLs presence, such as CuSCN, Cu₂O, CuO, CuI, SrCu₂O₂, and CuSbS₂, here represent a critical avenue for the possibility of fabricating high PCE perovskite devices made of stable, low-cost, efficient, safe, and eco-friendly all-inorganic materials like CsSnI₃ perovskite light absorber. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=CsSnI%E2%82%83" title="CsSnI₃">CsSnI₃</a>, <a href="https://publications.waset.org/abstracts/search?q=hole%20transporting%20layer%20%28HTL%29" title=" hole transporting layer (HTL)"> hole transporting layer (HTL)</a>, <a href="https://publications.waset.org/abstracts/search?q=lead-free%20perovskite%20solar%20cell" title=" lead-free perovskite solar cell"> lead-free perovskite solar cell</a>, <a href="https://publications.waset.org/abstracts/search?q=SCAPS-1D%20software" title=" SCAPS-1D software"> SCAPS-1D software</a> </p> <a href="https://publications.waset.org/abstracts/164715/dft-and-scaps-analysis-of-an-efficient-lead-free-inorganic-cssni3-based-perovskite-solar-cell-by-modification-of-hole-transporting-layer" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/164715.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">86</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">102</span> Fabrication of Pure and Doped MAPbI3 Thin Films by One Step Chemical Vapor Deposition Method for Energy Harvesting Applications</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=S.%20V.%20N.%20Pammi">S. V. N. Pammi</a>, <a href="https://publications.waset.org/abstracts/search?q=Soon-Gil%20Yoon"> Soon-Gil Yoon</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In the present study, we report a facile chemical vapor deposition (CVD) method for Perovskite MAPbI3 thin films by doping with Br and Cl. We performed a systematic optimization of CVD parameters such as deposition temperature, working pressure and annealing time and temperature to obtain high-quality films of CH3NH3PbI3, CH3NH3PbI3-xBrx and CH3NH3PbI3-xClx perovskite. Scanning electron microscopy and X-ray Diffraction pattern showed that the perovskite films have a large grain size when compared to traditional spin coated thin films. To the best of our knowledge, there are very few reports on highly quality perovskite thin films by various doping such as Br and Cl using one step CVD and there is scope for significant improvement in device efficiency. In addition, their band-gap can be conveniently and widely tuned via doping process. This deposition process produces perovskite thin films with large grain size, long diffusion length and high surface coverage. The enhancement of the output power, CH3NH3PbI3 (MAPbI3) dye films when compared to spin coated films and enhancement in output power by doping in doped films was demonstrated in detail. The facile one-step method for deposition of perovskite thin films shows a potential candidate for photovoltaic and energy harvesting applications. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=perovskite%20thin%20films" title="perovskite thin films">perovskite thin films</a>, <a href="https://publications.waset.org/abstracts/search?q=chemical%20vapor%20deposition" title=" chemical vapor deposition"> chemical vapor deposition</a>, <a href="https://publications.waset.org/abstracts/search?q=energy%20harvesting" title=" energy harvesting"> energy harvesting</a>, <a href="https://publications.waset.org/abstracts/search?q=photovoltaics" title=" photovoltaics"> photovoltaics</a> </p> <a href="https://publications.waset.org/abstracts/60232/fabrication-of-pure-and-doped-mapbi3-thin-films-by-one-step-chemical-vapor-deposition-method-for-energy-harvesting-applications" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/60232.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">308</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">101</span> Fabrication of Graphene Oxide Based Planar Hetero-Junction Perovskite Solar Cells</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Khursheed%20Ahmad">Khursheed Ahmad</a>, <a href="https://publications.waset.org/abstracts/search?q=Shaikh%20M.%20Mobin"> Shaikh M. Mobin</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this work, we have developed a highly stable planar heterojunction perovskite solar cells (PSCs) with a architecture (ITO/GO/PEDOT:PSS/MAPbI3/PCBM/Carbon tape). The PSCs was fabricated under air using GO/PEDOT:PSS as hole transport layer while the carbon tape used as a back contact to complete the device. The fabricated PSCs device exhibited good stability and performance in terms of power conversion efficiency of 5.2%. The PSCs devices were exposed to ambient condition for 4 days which shows excellent stability confirmed by XRD analysis. We believed that the stability of the planar heterojunction perovskite solar cell may be due the presence of GO which inhibits the direct contact between PEDOT:PSS and MAPbI3. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=graphene%20oxide" title="graphene oxide">graphene oxide</a>, <a href="https://publications.waset.org/abstracts/search?q=perovskite%20solar%20cells" title=" perovskite solar cells"> perovskite solar cells</a>, <a href="https://publications.waset.org/abstracts/search?q=hole%20transport%20layer" title=" hole transport layer"> hole transport layer</a>, <a href="https://publications.waset.org/abstracts/search?q=PEDOT%3APSS" title=" PEDOT:PSS"> PEDOT:PSS</a> </p> <a href="https://publications.waset.org/abstracts/84068/fabrication-of-graphene-oxide-based-planar-hetero-junction-perovskite-solar-cells" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/84068.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">181</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">100</span> Study of Hybrid Cells Based on Perovskite Materials Using Oghmasimultion</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Nadia%20Bachir%20%28Dahmani%29">Nadia Bachir (Dahmani)</a>, <a href="https://publications.waset.org/abstracts/search?q=Fatima%20Zohra%20Otmani"> Fatima Zohra Otmani</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Due to its interesting optoelectronic properties, methylammonium perovskite CH3NH3PbI3 is used as the active layer in the development of several solar cells. In this work, the hybrid (organic-inorganic) cell with the architecture FTO/pedotpss/CH3NH3PbI3/pcdtbt/Al is simulated using the Organic and Hybrid Material Nano Simulation Tool (OghmaNano). We studied the influence of certain parameters, such as thickness, on the characteristics of the solar cell. The effect of the device temperature was also investigated. The photovoltaic characteristic curves, such as current-voltage (j-V), are presented in this work. The optimized final parameters are Voc = 0.947 V, FF = 0.8034%, and PCE = 23.16%. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=OghmaNano%20software" title="OghmaNano software">OghmaNano software</a>, <a href="https://publications.waset.org/abstracts/search?q=hybrid%20perovskite%20cell" title=" hybrid perovskite cell"> hybrid perovskite cell</a>, <a href="https://publications.waset.org/abstracts/search?q=CH3NH3PbI3" title=" CH3NH3PbI3"> CH3NH3PbI3</a>, <a href="https://publications.waset.org/abstracts/search?q=conversion%20efficiency" title=" conversion efficiency"> conversion efficiency</a> </p> <a href="https://publications.waset.org/abstracts/193533/study-of-hybrid-cells-based-on-perovskite-materials-using-oghmasimultion" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/193533.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">14</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">99</span> Surface Modification of TiO2 Layer with Phosphonic Acid Monolayer in Perovskite Solar Cells: Effect of Chain Length and Terminal Functional Group</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Seid%20Yimer%20Abate">Seid Yimer Abate</a>, <a href="https://publications.waset.org/abstracts/search?q=Ding-Chi%20%20Huang"> Ding-Chi Huang</a>, <a href="https://publications.waset.org/abstracts/search?q=Yu-Tai%20Tao"> Yu-Tai Tao</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this study, charge extraction characteristics at the perovskite/TiO2 interface in the conventional perovskite solar cell is studied by interface engineering. Self-assembled monolayers of phosphonic acids with different chain length and terminal functional group were used to modify mesoporous TiO2 surface to modulate the surface property and interfacial energy barrier to investigate their effect on charge extraction and transport from the perovskite to the mp-TiO2 and then the electrode. The chain length introduces a tunnelling distance and the end group modulate the energy level alignment at the mp-TiO2 and perovskite interface. The work function of these SAM-modified mp-TiO2 varied from −3.89 eV to −4.61 eV, with that of the pristine mp-TiO2 at −4.19 eV. A correlation of charge extraction and transport with respect to the modification was attempted. The study serves as a guide to engineer ETL interfaces with simple SAMs to improve the charge extraction, carrier balance and device long term stability. In this study, a maximum PCE of ~16.09% with insignificant hysteresis was obtained, which is 17% higher than the standard device. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Energy%20level%20alignment" title="Energy level alignment">Energy level alignment</a>, <a href="https://publications.waset.org/abstracts/search?q=Interface%20engineering" title=" Interface engineering"> Interface engineering</a>, <a href="https://publications.waset.org/abstracts/search?q=Perovskite%20solar%20cells" title=" Perovskite solar cells"> Perovskite solar cells</a>, <a href="https://publications.waset.org/abstracts/search?q=Phosphonic%20acid%20monolayer" title=" Phosphonic acid monolayer"> Phosphonic acid monolayer</a>, <a href="https://publications.waset.org/abstracts/search?q=Tunnelling%20distance" title=" Tunnelling distance"> Tunnelling distance</a> </p> <a href="https://publications.waset.org/abstracts/125966/surface-modification-of-tio2-layer-with-phosphonic-acid-monolayer-in-perovskite-solar-cells-effect-of-chain-length-and-terminal-functional-group" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/125966.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">137</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">98</span> High Efficiency Perovskite Solar Cells Fabricated under Ambient Conditions with Mesoporous TiO2/In2O3 Scaffold</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=A.%20Apostolopoulou">A. Apostolopoulou</a>, <a href="https://publications.waset.org/abstracts/search?q=D.%20Sygkridou"> D. Sygkridou</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20N.%20Kalarakis"> A. N. Kalarakis</a>, <a href="https://publications.waset.org/abstracts/search?q=E.%20Stathatos"> E. Stathatos</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Mesoscopic perovskite solar cells (mp-PSCs) with mesoporous bilayer were fabricated under ambient conditions. The bilayer was formed by capping the mesoporous TiO<sub>2</sub> layer with a layer of In<sub>2</sub>O<sub>3</sub>. CH<sub>3</sub>NH<sub>3</sub>I<sub>3-x</sub>Cl<sub>x</sub> mixed halide perovskite was prepared through the one-step method and was used as the light absorber. The mp-PSCs with the composite TiO<sub>2</sub>/In<sub>2</sub>O<sub>3 </sub>mesoporous layer exhibited optimized electrical parameters, compared with the PSCs that employed only a TiO<sub>2</sub> mesoporous layer, with a current density of 23.86 mA/cm<sup>2</sup>, open circuit voltage of 0.863 V, fill factor of 0.6 and a power conversion efficiency of 11.2%. These results indicate that the formation of a proper semiconductor capping layer over the basic TiO<sub>2</sub> mesoporous layer can facilitate the electron transfer, suppress the recombination and subsequently lead to higher charge collection efficiency. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=ambient%20conditions" title="ambient conditions">ambient conditions</a>, <a href="https://publications.waset.org/abstracts/search?q=high%20efficiency%20solar%20cells" title=" high efficiency solar cells"> high efficiency solar cells</a>, <a href="https://publications.waset.org/abstracts/search?q=mesoscopic%20perovskite%20solar%20cells" title=" mesoscopic perovskite solar cells"> mesoscopic perovskite solar cells</a>, <a href="https://publications.waset.org/abstracts/search?q=TiO%E2%82%82%20%2F%20In%E2%82%82O%E2%82%83%20bilayer" title=" TiO₂ / In₂O₃ bilayer"> TiO₂ / In₂O₃ bilayer</a> </p> <a href="https://publications.waset.org/abstracts/65019/high-efficiency-perovskite-solar-cells-fabricated-under-ambient-conditions-with-mesoporous-tio2in2o3-scaffold" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/65019.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">270</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">97</span> Ammonia Sensing Properties of Nanostructured Hybrid Halide Perovskite Thin Film</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Nidhi%20Gupta">Nidhi Gupta</a>, <a href="https://publications.waset.org/abstracts/search?q=Omita%20Nanda"> Omita Nanda</a>, <a href="https://publications.waset.org/abstracts/search?q=Rakhi%20Grover"> Rakhi Grover</a>, <a href="https://publications.waset.org/abstracts/search?q=Kanchan%20Saxena"> Kanchan Saxena</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Hybrid perovskite is new class of material which has gained much attention due to their different crystal structure and interesting optical and electrical properties. Easy fabrication, high absorption coefficient, and photoluminescence properties make them a strong candidate for various applications such as sensors, photovoltaics, photodetectors, etc. In perovskites, ions arrange themselves in a special type of crystal structure with chemical formula ABX3, where A is organic species like CH3NH3+, B is metal ion (e.g., Pb, Sn, etc.) and X is halide (Cl-, Br-, I-). In crystal structure, A is present at corner position, B at center of the crystal lattice and halide ions at the face centers. High stability and sensitivity of nanostructured perovskite make them suitable for chemical sensors. Researchers have studied sensing properties of perovskites for number of analytes such as 2,4,6-trinitrophenol, ethanol and other hazardous chemical compounds. Ammonia being highly toxic agent makes it a reason of concern for the environment. Thus the detection of ammonia is extremely important. Our present investigation deals with organic inorganic hybrid perovskite based ammonia sensor. Various methods like sol-gel, solid state synthesis, thermal vapor deposition etc can be used to synthesize Different hybrid perovskites. In the present work, a novel hybrid perovskite has been synthesized by a single step method. Ethylenediammnedihalide and lead halide were used as precursor. Formation of hybrid perovskite was confirmed by FT-IR and XRD. Morphological characterization of the synthesized material was performed using scanning electron microscopy (SEM). SEM analysis revealed the formation of one dimensional nanowire perovskite with mean diameter of 200 nm. Measurements for sensing properties of halide perovskite for ammonia vapor were carried out. Perovskite thin films showed a color change from yellow to orange on exposure of ammonia vapor. Electro-optical measurements show that sensor based on lead halide perovskite has high sensitivity towards ammonia with effective selectivity and reversibility. Sensor exhibited rapid response time of less than 20 seconds. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=hybrid%20perovskite" title="hybrid perovskite">hybrid perovskite</a>, <a href="https://publications.waset.org/abstracts/search?q=ammonia" title=" ammonia"> ammonia</a>, <a href="https://publications.waset.org/abstracts/search?q=sensor" title=" sensor"> sensor</a>, <a href="https://publications.waset.org/abstracts/search?q=nanostructure" title=" nanostructure"> nanostructure</a>, <a href="https://publications.waset.org/abstracts/search?q=thin%20film" title=" thin film"> thin film</a> </p> <a href="https://publications.waset.org/abstracts/72299/ammonia-sensing-properties-of-nanostructured-hybrid-halide-perovskite-thin-film" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/72299.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">276</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">96</span> Full Potential Calculation of Structural and Electronic Properties of Perovskite BiAlO3 and BiGaO3</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=M.%20Harmel">M. Harmel</a>, <a href="https://publications.waset.org/abstracts/search?q=H.%20Khachai"> H. Khachai</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The first principles within the full potential linearized augmented plane wave (FP-LAPW) method were applied to study the structural and electronic properties of cubic perovskite-type compounds BiAlO3 and BiGaO3. The lattice constant, bulk modulus, its pressure derivative, band structure and density of states were obtained. The results show that BiGaO3 should exhibit higher hardness and stiffness than BiAlO3. The Al–O or Ga–O bonds are typically covalent with a strong hybridization as well as Bi–O ones that have a significant ionic character. Both materials are weakly ionic and exhibit wide and indirect band gaps, which are typical of insulators. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=DFT" title="DFT">DFT</a>, <a href="https://publications.waset.org/abstracts/search?q=Ab%20initio" title=" Ab initio"> Ab initio</a>, <a href="https://publications.waset.org/abstracts/search?q=electronic%20structure" title=" electronic structure"> electronic structure</a>, <a href="https://publications.waset.org/abstracts/search?q=Perovskite%20structure" title=" Perovskite structure"> Perovskite structure</a>, <a href="https://publications.waset.org/abstracts/search?q=ferroelectrics" title=" ferroelectrics"> ferroelectrics</a> </p> <a href="https://publications.waset.org/abstracts/41169/full-potential-calculation-of-structural-and-electronic-properties-of-perovskite-bialo3-and-bigao3" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/41169.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">397</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">95</span> Effect of Methylammonium Lead Iodide Layer Thickness on Performance of Perovskite Solar Cell</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Chadel%20Meriem">Chadel Meriem</a>, <a href="https://publications.waset.org/abstracts/search?q=Bensmaine%20Souhila"> Bensmaine Souhila</a>, <a href="https://publications.waset.org/abstracts/search?q=Chadel%20Asma"> Chadel Asma</a>, <a href="https://publications.waset.org/abstracts/search?q=Bouchikhi%20Chaima"> Bouchikhi Chaima</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The Methylammonium Lead Iodide CH3NH3PbI3 is used in solar cell as an absorber layer since 2009. The efficiencies of these technologies have increased from 3.8% in 2009 to 29.15% in 2019. So, these technologies Methylammonium Lead Iodide is promising for the development of high-performance photovoltaic applications. Due to the high cost of the experimental of the solar cells, researchers have turned to other methods like numerical simulation. In this work, we evaluate and simulate the performance of a CH₃NH₃PbI₃ lead-based perovskite solar cell when the amount of materials of absorber layer is reduced. We show that the reducing of thickness the absorber layer influent on performance of the solar cell. For this study, the one-dimensional simulation program, SCAPS-1D, is used to investigate and analyze the performance of the perovskite solar cell. After optimization, maximum conversion efficiency was achieved with 300 nm in absorber layer. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=methylammonium%20lead%20Iodide" title="methylammonium lead Iodide">methylammonium lead Iodide</a>, <a href="https://publications.waset.org/abstracts/search?q=perovskite%20solar%20cell" title=" perovskite solar cell"> perovskite solar cell</a>, <a href="https://publications.waset.org/abstracts/search?q=caracteristic%20J-V" title=" caracteristic J-V"> caracteristic J-V</a>, <a href="https://publications.waset.org/abstracts/search?q=effeciency" title=" effeciency"> effeciency</a> </p> <a href="https://publications.waset.org/abstracts/176389/effect-of-methylammonium-lead-iodide-layer-thickness-on-performance-of-perovskite-solar-cell" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/176389.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">69</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">94</span> Synthesis of Highly Stable Near-Infrared FAPbI₃ Perovskite Doped with 5-AVA and Its Applications in NIR Light-Emitting Diodes for Bioimaging</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Nasrud%20Din">Nasrud Din</a>, <a href="https://publications.waset.org/abstracts/search?q=Fawad%20Saeed"> Fawad Saeed</a>, <a href="https://publications.waset.org/abstracts/search?q=Sajid%20Hussain"> Sajid Hussain</a>, <a href="https://publications.waset.org/abstracts/search?q=Rai%20Muhammad%20Dawood%20Sultan"> Rai Muhammad Dawood Sultan</a>, <a href="https://publications.waset.org/abstracts/search?q=Premkumar%20Sellan"> Premkumar Sellan</a>, <a href="https://publications.waset.org/abstracts/search?q=Qasim%20Khan"> Qasim Khan</a>, <a href="https://publications.waset.org/abstracts/search?q=Wei%20Lei"> Wei Lei</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The continuously increasing external quantum efficiencies of Perovskite light-emitting diodes (LEDs) have received significant interest in the scientific community. The need for monitoring and medical diagnostics has experienced a steady growth in recent years, primarily caused by older people and an increasing number of heart attacks, tumors, and cancer disorders among patients. The application of Perovskite near-infrared light-emitting diode (PeNIRLEDs) has exhibited considerable efficacy in bioimaging, particularly in the visualization and examination of blood arteries, blood clots, and tumors. PeNIRLEDs exhibit exciting potential in the field of blood vessel imaging because of their advantageous attributes, including improved depth penetration and less scattering in comparison to visible light. In this study, we synthesized FAPbI₃ Perovskite doped with different concentrations of 5-Aminovaleric acid (5-AVA) 1-6 mg. The incorporation of 5-AVA as a dopant during the FAPbI₃ Perovskite formation influences the FAPbI3 Perovskite’s structural and optical properties, improving its stability, photoluminescence efficiency, and charge transport characteristics. We found a resulting PL emission peak wavelength of 850 nm and bandwidth of 44 nm, along with a calculated quantum yield of 75%. The incorporation of 5-AVA-modified FAPbI₃ Perovskite into LEDs will show promising results, enhancing device efficiency, color purity, and stability. Making it suitable for various medical applications, including subcutaneous deep vein imaging, blood flow visualization, and tumor illumination. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=perovskite%20light-emitting%20diodes" title="perovskite light-emitting diodes">perovskite light-emitting diodes</a>, <a href="https://publications.waset.org/abstracts/search?q=deep%20vein%20imaging" title=" deep vein imaging"> deep vein imaging</a>, <a href="https://publications.waset.org/abstracts/search?q=blood%20flow%20visualization" title=" blood flow visualization"> blood flow visualization</a>, <a href="https://publications.waset.org/abstracts/search?q=tumor%20illumination" title=" tumor illumination"> tumor illumination</a> </p> <a href="https://publications.waset.org/abstracts/186722/synthesis-of-highly-stable-near-infrared-fapbi3-perovskite-doped-with-5-ava-and-its-applications-in-nir-light-emitting-diodes-for-bioimaging" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/186722.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">56</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">93</span> Computational Study on the Crystal Structure, Electronic and Optical Properties of Perovskites a2bx6 for Photovoltaic Applications</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Harmel%20Meriem">Harmel Meriem</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The optoelectronic properties and high power conversion efficiency make lead halide perovskites ideal material for solar cell applications. However, the toxic nature of lead and the instability of organic cation are the two key challenges in the emerging perovskite solar cells. To overcome these challenges, we present our study about finding potential alternatives to lead in the form of A2BX6 perovskite using the first principles DFT-based calculations. The highly accurate modified Becke Johnson (mBJ) and hybrid functional (HSE06) have been used to investigate the Main Document Click here to view linked References to optoelectronic and thermoelectric properties of A2PdBr6 (A = K, Rb, and Cs) perovskite. The results indicate that different A-cations in A2PdBr6 can significantly alter their electronic and optical properties. Calculated band structures indicate semiconducting nature, with band gap values of 1.84, 1.53, and 1.54 eV for K2PdBr6, Rb2PdBr6, and Cs2PdBr6, respectively. We find strong optical absorption in the visible region with small effective masses for A2PdBr6. The ideal band gap and optimum light absorption suggest Rb2PdBr6 and Cs2PdBr6 potential candidates for the light absorption layer in perovskite solar cells. Additionally. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=soler%20cell" title="soler cell">soler cell</a>, <a href="https://publications.waset.org/abstracts/search?q=double%20perovskite" title="double perovskite">double perovskite</a>, <a href="https://publications.waset.org/abstracts/search?q=optoelectronic%20properties" title=" optoelectronic properties"> optoelectronic properties</a>, <a href="https://publications.waset.org/abstracts/search?q=ab-inotio%20study" title=" ab-inotio study"> ab-inotio study</a> </p> <a href="https://publications.waset.org/abstracts/149815/computational-study-on-the-crystal-structure-electronic-and-optical-properties-of-perovskites-a2bx6-for-photovoltaic-applications" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/149815.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">128</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">92</span> Meniscus Guided Film Coating for Large-Area Perovskite Solar Cells</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Gizachew%20Belay%20Adugna">Gizachew Belay Adugna</a>, <a href="https://publications.waset.org/abstracts/search?q=Yu-Tai%20Tao"> Yu-Tai Tao</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Perovskite solar cells (PSCs) have been gaining impressive progress with excellent power conversion efficiency (PCE) of 25.5% in small-area devices. However, the conventional film coating approach is not applicable to large-area module fabrication. Meniscus-guided coating, including blade coating, slot-die coating, and bar coating, is solution processing and promising for large-area and cost-effective film coating to industrial-scale PSCs. Here, we develop simple and scalable solution shearing (SS) and bar coating (BC) methods to coat all layers on large-area (10x10 cm²) substrate in FTO/c-TiO₂/mp-TiO₂/ CH₃NH₃PbI₃/Spiro-OMeTAD/Ag device structure, except the Ag electrode. All solution-sheared PSC exhibited a champion power conversion efficiency of 15.89% in the conational DMF/DMSO solvent. Whereas a very high PCE of 20.30% compared to the controlled spin-coated device (SC, 17.60%) was achieved from the large area sheared perovskite film in a green ACN/MA solvent. Similarly, a remarkable PCE of 18.50% was achieved for a device fabricated from a large-area perovskite film in a simpler and more compatible Bar-coating system. This strategy demonstrates the huge potential for module fabrication and future PSC commercialization. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Perovskite%20solar%20cells" title="Perovskite solar cells">Perovskite solar cells</a>, <a href="https://publications.waset.org/abstracts/search?q=larger%20area%20film%20coating" title=" larger area film coating"> larger area film coating</a>, <a href="https://publications.waset.org/abstracts/search?q=meniscus-guided%20film%20coating" title=" meniscus-guided film coating"> meniscus-guided film coating</a>, <a href="https://publications.waset.org/abstracts/search?q=solution-shearing" title=" solution-shearing"> solution-shearing</a>, <a href="https://publications.waset.org/abstracts/search?q=bar-coating" title=" bar-coating"> bar-coating</a>, <a href="https://publications.waset.org/abstracts/search?q=power%20conversion%20efficiency" title=" power conversion efficiency"> power conversion efficiency</a> </p> <a href="https://publications.waset.org/abstracts/168010/meniscus-guided-film-coating-for-large-area-perovskite-solar-cells" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/168010.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">75</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">91</span> Large-Area Film Fabrication for Perovskite Solar Cell via Scalable Thermal-Assisted and Meniscus-Guided Bar Coating</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Gizachew%20Belay%20Adugna">Gizachew Belay Adugna</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Scalable and cost-effective device fabrication techniques are urgent to commercialize the perovskite solar cells (PSCs) for the next photovoltaic (PV) technology. Herein, large-area films of perovskite and hole-transporting materials (HTMs) were developed via a rapid and scalable thermal-assisting bar-coating process in the open air. High-quality and large crystalline grains of MAPbI₃ with homogenous morphology and thickness were obtained on a large-area (10 cm×10 cm) solution-sheared mp-TiO₂/c-TiO₂/FTO substrate. Encouraging photovoltaic performance of 19.02% was achieved for devices fabricated from the bar-coated perovskite film compared to that from the small-scale spin-coated film (17.27%) with 2,2′,7,7′-tetrakis-(N,N-di-p-methoxyphenylamine)-9,9′-spirobifluorene (spiro-OMeTAD) as an HTM whereas a higher power conversion efficiency of 19.89% with improved device stability was achieved by capping a fluorinated (HYC-2) HTM as an alternative to the traditional spiro-OMeTAD. The fluorinated exhibited better molecular packing in the HTM film and deeper HOMO level compared to the nonfluorinated counterpart; thus, improved hole mobility and overall charge extraction in the device were demonstrated. Furthermore, excellent film processability and an impressive PCE of 18.52% were achieved in the large area bar-coated HYC-2 prepared sequentially on the perovskite underlayer in the open atmosphere, compared to the bar-coated spiro-OMeTAD/perovskite (17.51%). This all-solution approach demonstrated the feasibility of high-quality films on a large-area substrate for PSCs, which is a vital step toward industrial-scale PV production. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=perovskite%20solar%20cells" title="perovskite solar cells">perovskite solar cells</a>, <a href="https://publications.waset.org/abstracts/search?q=hole%20transporting%20materials" title=" hole transporting materials"> hole transporting materials</a>, <a href="https://publications.waset.org/abstracts/search?q=up-scaling%20process" title=" up-scaling process"> up-scaling process</a>, <a href="https://publications.waset.org/abstracts/search?q=power%20conversion%20efficiency" title=" power conversion efficiency"> power conversion efficiency</a> </p> <a href="https://publications.waset.org/abstracts/172735/large-area-film-fabrication-for-perovskite-solar-cell-via-scalable-thermal-assisted-and-meniscus-guided-bar-coating" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/172735.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">71</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">90</span> From Synthesis to Application of Photovoltaic Perovskite Nanowires</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=L%C3%A1szl%C3%B3%20Forr%C3%B3">László Forró</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The organolead halide perovskite CH3NH3PbI3 and its derivatives are known to be very efficient light harvesters revolutionizing the field of solid-state solar cells. The major research area in this field is photovoltaic device engineering although other applications are being explored, as well. Recently, we have shown that nanowires of this photovoltaic perovskite can be synthesized which in association with carbon nanostructures (carbon nanotubes and graphene) make outstanding composites with rapid and strong photo-response. They can serve as conducting electrodes, or as central components of detectors. The performance of several miniature devices based on these composite structures will be demonstrated. Our latest findings on the guided growth of perovskite nanowires by solvatomorph graphoepitaxy will be presented. This method turned out to be a fairly simple approach to overcome the spatially random surface nucleation. The process allows the synthesis of extremely long (centimeters) and thin (a few nanometers) nanowires with a morphology defined by the shape of nanostructured open fluidic channels. This low-temperature solution-growth method could open up an entirely new spectrum of architectural designs of organometallic-halide-perovskite-based heterojunctions and tandem solar cells, LEDs and other optoelectronic devices. Acknowledgment: This work is done in collaboration with Endre Horvath, Massimo Spina, Alla Arakcheeva, Balint Nafradi, Eric Bonvin1, Andrzej Sienkievicz, Zsolt Szekrenyes, Hajnalka Tohati, Katalin Kamaras, Eduard Tutis, Laszlo Mihaly and Karoly Holczer The research is supported by the ERC Advanced Grant (PICOPROP670918). <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=photovoltaics" title="photovoltaics">photovoltaics</a>, <a href="https://publications.waset.org/abstracts/search?q=perovskite" title=" perovskite"> perovskite</a>, <a href="https://publications.waset.org/abstracts/search?q=nanowire" title=" nanowire"> nanowire</a>, <a href="https://publications.waset.org/abstracts/search?q=photodetector" title=" photodetector"> photodetector</a> </p> <a href="https://publications.waset.org/abstracts/59998/from-synthesis-to-application-of-photovoltaic-perovskite-nanowires" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/59998.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">356</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">89</span> First Principle Calculations of Magnetic and Electronic Properties of Double Perovskite Ba2MnMoO6</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=B.%20Bouadjemi">B. Bouadjemi</a>, <a href="https://publications.waset.org/abstracts/search?q=S.%20Bentata"> S. Bentata</a>, <a href="https://publications.waset.org/abstracts/search?q=W.%20Benstaali"> W. Benstaali</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20Souidi"> A. Souidi</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20Abbad"> A. Abbad</a>, <a href="https://publications.waset.org/abstracts/search?q=T.%20Lantri"> T. Lantri</a>, <a href="https://publications.waset.org/abstracts/search?q=Z.%20Aziz"> Z. Aziz</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20Zitouni"> A. Zitouni </a> </p> <p class="card-text"><strong>Abstract:</strong></p> The electronic and magnetic structures of double perovskite Ba2MnMoO6 are systematically investigated using the first principle method of the Full Potential Linear Augmented Plane Waves Plus the Local Orbitals (FP-LAPW+LO) within the Local Spin Density Approximation (LSDA) and the Generalized Gradient Approximation (GGA). In order to take into account the strong on-site Coulomb interaction, we included the Hubbard correlation terms: LSDA+U and GGA+U approaches. Whereas half-metallic ferromagnetic character is observed due to dominant Mn spin-up and Mo spin-down contributions insulating ground state is obtained. The LSDA+U and GGA+U calculations yield better agreement with the theoretical and the experimental results than LSDA and GGA do. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=electronic%20structure" title="electronic structure">electronic structure</a>, <a href="https://publications.waset.org/abstracts/search?q=double%20perovskite" title=" double perovskite"> double perovskite</a>, <a href="https://publications.waset.org/abstracts/search?q=first%20principles" title=" first principles"> first principles</a>, <a href="https://publications.waset.org/abstracts/search?q=Ba2MnMoO6" title=" Ba2MnMoO6"> Ba2MnMoO6</a>, <a href="https://publications.waset.org/abstracts/search?q=half-metallic" title=" half-metallic"> half-metallic</a> </p> <a href="https://publications.waset.org/abstracts/25164/first-principle-calculations-of-magnetic-and-electronic-properties-of-double-perovskite-ba2mnmoo6" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/25164.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">441</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">88</span> Perovskite Solar Cells Penetration on Electric Grids Based on the Power Hardware in the Loop Methodology</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Alaa%20A.%20Zaky">Alaa A. Zaky</a>, <a href="https://publications.waset.org/abstracts/search?q=Bandar%20Alfaifi"> Bandar Alfaifi</a>, <a href="https://publications.waset.org/abstracts/search?q=Saleh%20Alyahya"> Saleh Alyahya</a>, <a href="https://publications.waset.org/abstracts/search?q=Alkistis%20Kontou"> Alkistis Kontou</a>, <a href="https://publications.waset.org/abstracts/search?q=Panos%20Kotsampopoulos"> Panos Kotsampopoulos</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this work, we present for the first time the grid-integration of 3rd generation perovskite solar cells (PSCs) based on nanotechnology in fabrication. The effect of this penetration is analyzed in normal, fault and islanding cases of operation under different irradiation conditions using the power hardware in the loop (PHIL) methodology. The PHL method allows the PSCs connection to the electric grid which is simulated in the real-time digital simulator (RTDS), for laboratory validation of the PSCs behavior under conditions very close to real. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=perovskite%20solar%20cells" title="perovskite solar cells">perovskite solar cells</a>, <a href="https://publications.waset.org/abstracts/search?q=power%20hardware%20in%20the%20loop" title=" power hardware in the loop"> power hardware in the loop</a>, <a href="https://publications.waset.org/abstracts/search?q=real-time%20digital%20simulator" title=" real-time digital simulator"> real-time digital simulator</a>, <a href="https://publications.waset.org/abstracts/search?q=smart%20grid" title=" smart grid"> smart grid</a> </p> <a href="https://publications.waset.org/abstracts/190176/perovskite-solar-cells-penetration-on-electric-grids-based-on-the-power-hardware-in-the-loop-methodology" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/190176.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">26</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">87</span> Perovskite-Type La1−xCaxAlO3 (x=0, 0.2, 0.4, 0.6) as Active Anode Materials for Methanol Oxidation in Alkaline Solutions</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=M.%20Diafi">M. Diafi</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20Omari"> M. Omari</a>, <a href="https://publications.waset.org/abstracts/search?q=B.%20Gasmi"> B. Gasmi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Perovskite-type La1−xCaxAlO3 were synthesized at 1000◦C by a co- precipitation method. The synthesized oxide powders were characterized by X-ray diffraction (XRD) and the oxide powders were produced in the form of films on pretreated Ni-supports by an oxide-slurry painting technique their electrocatalytic activities towards methanol oxidation in alkaline solutions at 25°C using cyclic voltammetry, chronoamperometry, and anodic Tafel polarization techniques. The oxide catalysts followed the rhombohedral hexagonal crystal geometry. The rate of electro-oxidation of methanol was found to increase with increasing substitution of La by Ca in the oxide matrix. The reaction indicated a Tafel slope of ~2.303RT/F, The electrochemical apparent activation energy (〖∆H〗_el^(°#)) was observed to decrease on increasing Ca content. The results point out the optimum electrode activity and stability of the Ca is x=0.6 of composition. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=electrocatalysis" title="electrocatalysis">electrocatalysis</a>, <a href="https://publications.waset.org/abstracts/search?q=oxygen%20evolution" title=" oxygen evolution"> oxygen evolution</a>, <a href="https://publications.waset.org/abstracts/search?q=perovskite-type%20La1%E2%88%92x%20Cax%20AlO3" title=" perovskite-type La1−x Cax AlO3"> perovskite-type La1−x Cax AlO3</a>, <a href="https://publications.waset.org/abstracts/search?q=methanol%20oxidation" title=" methanol oxidation"> methanol oxidation</a> </p> <a href="https://publications.waset.org/abstracts/20621/perovskite-type-la1xcaxalo3-x0-02-04-06-as-active-anode-materials-for-methanol-oxidation-in-alkaline-solutions" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/20621.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">438</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">86</span> Simple and Scalable Thermal-Assisted Bar-Coating Process for Perovskite Solar Cell Fabrication in Open Atmosphere</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Gizachew%20Belay%20Adugna">Gizachew Belay Adugna</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Perovskite solar cells (PSCs) shows rapid development as an emerging photovoltaic material; however, the fast device degradation due to the organic nature, mainly hole transporting material (HTM) and lack of robust and reliable upscaling process for photovoltaic module hindered its commercialization. Herein, HTM molecules with/without fluorine-substituted cyclopenta[2,1-b;3,4-b’]dithiophene derivatives (HYC-oF, HYC-mF, and HYC-H) were developed for PSCs application. The fluorinated HTM molecules exhibited better hole mobility and overall charge extraction in the devices mainly due to strong molecular interaction and packing in the film. Thus, the highest power conversion efficiency (PCE) of 19.64% with improved long stability was achieved for PSCs based on HYC-oF HTM. Moreover, the fluorinated HYC-oF demonstrated excellent film processability in a larger-area substrate (10 cm×10 cm) prepared sequentially with the absorption perovskite underlayer via a scalable bar coating process in ambient air and owned a higher PCE of 18.49% compared to the conventional spiro-OMeTAD (17.51%). The result demonstrates a facile development of HTM towards stable and efficient PSCs for future industrial-scale PV modules. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=perovskite%20solar%20cells" title="perovskite solar cells">perovskite solar cells</a>, <a href="https://publications.waset.org/abstracts/search?q=upscaling%20film%20coating" title=" upscaling film coating"> upscaling film coating</a>, <a href="https://publications.waset.org/abstracts/search?q=power%20conversion%20efficiency" title=" power conversion efficiency"> power conversion efficiency</a>, <a href="https://publications.waset.org/abstracts/search?q=solution%20processing" title=" solution processing"> solution processing</a> </p> <a href="https://publications.waset.org/abstracts/172881/simple-and-scalable-thermal-assisted-bar-coating-process-for-perovskite-solar-cell-fabrication-in-open-atmosphere" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/172881.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">73</span> </span> </div> </div> <ul class="pagination"> <li class="page-item disabled"><span class="page-link">&lsaquo;</span></li> <li class="page-item active"><span class="page-link">1</span></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=Perovskite&page=2">2</a></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=Perovskite&page=3">3</a></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=Perovskite&page=4">4</a></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=Perovskite&page=2" rel="next">&rsaquo;</a></li> </ul> </div> </main> <footer> <div 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