<?xml version="1.0" encoding="UTF-8"?> <article key="pdf/10000940" mdate="2015-03-01 00:00:00"> <author>Pandiyarajan Thangaraj and Mangalaraja Ramalinga Viswanathan and Karthikeyan Balasubramanian and H茅ctor D. Mansilla and Jos茅 Ruiz and David Contreras</author> <title>Structural and Optical Properties of Pr3 Doped ZnO and PVAZn98Pr2O Nanocomposite Free Standing Film</title> <pages>225 - 229</pages> <year>2015</year> <volume>9</volume> <number>1</number> <journal>International Journal of Materials and Metallurgical Engineering</journal> <ee>https://publications.waset.org/pdf/10000940</ee> <url>https://publications.waset.org/vol/97</url> <publisher>World Academy of Science, Engineering and Technology</publisher> <abstract>In this work, we report, a systematic study on the structural and optical properties of Prdoped ZnO nanostructures and PVAZn98Pr2O polymer matrix nanocomposites free standing films. These particles are synthesized through simple wet chemical route and solution casting technique at room temperature, respectively. Structural studies carried out by Xray diffraction method confirm that the prepared pure ZnO and Pr doped ZnO nanostructures are in hexagonal wurtzite structure and the microstrain is increased upon doping. TEM analysis reveals that the prepared materials are in sheet like nature. Absorption spectra show free excitonic absorption band at 370 nm and red shift for the Pr doped ZnO nanostructures. The PVAZn98Pr2O composite film exhibits both free excitonic and PVA absorption bands at 282 nm. Fourier transform infrared spectral studies confirm the presence of A1 (TO) and E1 (TO) modes of ZnO bond vibration and the formation of polymer composite materials. </abstract> <index>Open Science Index 97, 2015</index> </article>