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class="user-links-collapsible-item mw-list-item"><a href="/w/index.php?title=%E7%89%B9%E5%88%A5:%E3%83%AD%E3%82%B0%E3%82%A4%E3%83%B3&returnto=%E4%BC%9D%E5%B0%8E%E5%B8%AF" title="ログインすることを推奨します。ただし、必須ではありません。 [o]" accesskey="o"><span class="vector-icon mw-ui-icon-logIn mw-ui-icon-wikimedia-logIn"></span> <span>ログイン</span></a></li> </ul> </div> </div> <div id="p-user-menu-anon-editor" class="vector-menu mw-portlet mw-portlet-user-menu-anon-editor" > <div class="vector-menu-heading"> ログアウトした編集者のページ <a href="/wiki/Wikipedia:%E3%82%A6%E3%82%A3%E3%82%AD%E3%83%9A%E3%83%87%E3%82%A3%E3%82%A2%E3%81%B8%E3%82%88%E3%81%86%E3%81%93%E3%81%9D" aria-label="編集の詳細"><span>もっと詳しく</span></a> </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="pt-anoncontribs" class="mw-list-item"><a href="/wiki/%E7%89%B9%E5%88%A5:%E8%87%AA%E5%88%86%E3%81%AE%E6%8A%95%E7%A8%BF%E8%A8%98%E9%8C%B2" title="このIPアドレスからなされた編集の一覧 [y]" accesskey="y"><span>投稿記録</span></a></li><li id="pt-anontalk" class="mw-list-item"><a href="/wiki/%E7%89%B9%E5%88%A5:%E3%83%88%E3%83%BC%E3%82%AF%E3%83%9A%E3%83%BC%E3%82%B8" title="このIPアドレスからなされた編集についての議論 [n]" accesskey="n"><span>トーク</span></a></li> </ul> </div> </div> </div> </div> </nav> </div> </header> </div> <div class="mw-page-container"> <div class="mw-page-container-inner"> <div class="vector-sitenotice-container"> <div id="siteNotice"></div> </div> <div class="vector-column-start"> <div class="vector-main-menu-container"> <div id="mw-navigation"> <nav id="mw-panel" class="vector-main-menu-landmark" aria-label="サイト"> <div id="vector-main-menu-pinned-container" class="vector-pinned-container"> </div> </nav> </div> </div> <div class="vector-sticky-pinned-container"> <nav id="mw-panel-toc" aria-label="目次" data-event-name="ui.sidebar-toc" class="mw-table-of-contents-container vector-toc-landmark"> <div id="vector-toc-pinned-container" class="vector-pinned-container"> <div id="vector-toc" class="vector-toc vector-pinnable-element"> <div class="vector-pinnable-header vector-toc-pinnable-header vector-pinnable-header-pinned" data-feature-name="toc-pinned" data-pinnable-element-id="vector-toc" > <h2 class="vector-pinnable-header-label">目次</h2> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-toc.pin">サイドバーに移動</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-toc.unpin">非表示</button> </div> <ul class="vector-toc-contents" id="mw-panel-toc-list"> <li id="toc-mw-content-text" class="vector-toc-list-item vector-toc-level-1"> <a href="#" class="vector-toc-link"> <div class="vector-toc-text">ページ先頭</div> </a> </li> <li id="toc-関連項目" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#関連項目"> <div class="vector-toc-text"> <span class="vector-toc-numb">1</span> <span>関連項目</span> </div> </a> <ul id="toc-関連項目-sublist" class="vector-toc-list"> </ul> </li> </ul> </div> </div> </nav> </div> </div> <div class="mw-content-container"> <main id="content" class="mw-body"> <header class="mw-body-header vector-page-titlebar"> <nav aria-label="目次" class="vector-toc-landmark"> <div id="vector-page-titlebar-toc" class="vector-dropdown vector-page-titlebar-toc vector-button-flush-left" > <input type="checkbox" id="vector-page-titlebar-toc-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-page-titlebar-toc" class="vector-dropdown-checkbox " aria-label="目次の表示・非表示を切り替え" > <label id="vector-page-titlebar-toc-label" for="vector-page-titlebar-toc-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-listBullet mw-ui-icon-wikimedia-listBullet"></span> <span class="vector-dropdown-label-text">目次の表示・非表示を切り替え</span> </label> <div class="vector-dropdown-content"> <div id="vector-page-titlebar-toc-unpinned-container" class="vector-unpinned-container"> </div> </div> </div> </nav> <h1 id="firstHeading" class="firstHeading mw-first-heading"><span class="mw-page-title-main">伝導帯</span></h1> <div id="p-lang-btn" class="vector-dropdown mw-portlet mw-portlet-lang" > <input type="checkbox" id="p-lang-btn-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-p-lang-btn" class="vector-dropdown-checkbox mw-interlanguage-selector" aria-label="特定の記事の別の言語版に移動します。利用可能な言語16件" > <label id="p-lang-btn-label" for="p-lang-btn-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--action-progressive mw-portlet-lang-heading-16" aria-hidden="true" ><span class="vector-icon mw-ui-icon-language-progressive mw-ui-icon-wikimedia-language-progressive"></span> <span class="vector-dropdown-label-text">16の言語版</span> </label> <div class="vector-dropdown-content"> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="interlanguage-link interwiki-ar mw-list-item"><a href="https://ar.wikipedia.org/wiki/%D9%86%D8%B7%D8%A7%D9%82_%D8%A7%D9%84%D8%AA%D9%88%D8%B5%D9%8A%D9%84" title="アラビア語: نطاق التوصيل" lang="ar" hreflang="ar" data-title="نطاق التوصيل" data-language-autonym="العربية" data-language-local-name="アラビア語" class="interlanguage-link-target"><span>العربية</span></a></li><li class="interlanguage-link interwiki-bn mw-list-item"><a href="https://bn.wikipedia.org/wiki/%E0%A6%AF%E0%A7%8B%E0%A6%9C%E0%A6%A8%E0%A7%80_%E0%A6%93_%E0%A6%AA%E0%A6%B0%E0%A6%BF%E0%A6%AC%E0%A6%B9%E0%A6%A8_%E0%A6%AC%E0%A7%8D%E0%A6%AF%E0%A6%BE%E0%A6%A8%E0%A7%8D%E0%A6%A1" title="ベンガル語: যোজনী ও পরিবহন ব্যান্ড" lang="bn" hreflang="bn" data-title="যোজনী ও পরিবহন ব্যান্ড" data-language-autonym="বাংলা" data-language-local-name="ベンガル語" class="interlanguage-link-target"><span>বাংলা</span></a></li><li class="interlanguage-link interwiki-ca mw-list-item"><a href="https://ca.wikipedia.org/wiki/Banda_de_conducci%C3%B3" title="カタロニア語: Banda de conducció" lang="ca" hreflang="ca" data-title="Banda de conducció" data-language-autonym="Català" data-language-local-name="カタロニア語" class="interlanguage-link-target"><span>Català</span></a></li><li class="interlanguage-link interwiki-cs mw-list-item"><a href="https://cs.wikipedia.org/wiki/P%C3%A1smo_vodivosti" title="チェコ語: Pásmo vodivosti" lang="cs" hreflang="cs" data-title="Pásmo vodivosti" data-language-autonym="Čeština" data-language-local-name="チェコ語" class="interlanguage-link-target"><span>Čeština</span></a></li><li class="interlanguage-link interwiki-de mw-list-item"><a href="https://de.wikipedia.org/wiki/Leitungsband" title="ドイツ語: Leitungsband" lang="de" hreflang="de" data-title="Leitungsband" data-language-autonym="Deutsch" data-language-local-name="ドイツ語" class="interlanguage-link-target"><span>Deutsch</span></a></li><li class="interlanguage-link interwiki-en mw-list-item"><a href="https://en.wikipedia.org/wiki/Valence_and_conduction_bands" title="英語: Valence and conduction bands" lang="en" hreflang="en" data-title="Valence and conduction bands" data-language-autonym="English" data-language-local-name="英語" class="interlanguage-link-target"><span>English</span></a></li><li class="interlanguage-link interwiki-es mw-list-item"><a href="https://es.wikipedia.org/wiki/Banda_de_conducci%C3%B3n" title="スペイン語: Banda de conducción" lang="es" hreflang="es" data-title="Banda de conducción" data-language-autonym="Español" data-language-local-name="スペイン語" class="interlanguage-link-target"><span>Español</span></a></li><li class="interlanguage-link interwiki-fa mw-list-item"><a href="https://fa.wikipedia.org/wiki/%D9%86%D9%88%D8%A7%D8%B1%D9%87%D8%A7%DB%8C_%D9%87%D8%AF%D8%A7%DB%8C%D8%AA_%D9%88_%D8%B8%D8%B1%D9%81%DB%8C%D8%AA" title="ペルシア語: نوارهای هدایت و ظرفیت" lang="fa" hreflang="fa" data-title="نوارهای هدایت و ظرفیت" data-language-autonym="فارسی" data-language-local-name="ペルシア語" class="interlanguage-link-target"><span>فارسی</span></a></li><li class="interlanguage-link interwiki-he mw-list-item"><a href="https://he.wikipedia.org/wiki/%D7%A4%D7%A1_%D7%94%D7%95%D7%9C%D7%9B%D7%94" title="ヘブライ語: פס הולכה" lang="he" hreflang="he" data-title="פס הולכה" data-language-autonym="עברית" data-language-local-name="ヘブライ語" class="interlanguage-link-target"><span>עברית</span></a></li><li class="interlanguage-link interwiki-it mw-list-item"><a href="https://it.wikipedia.org/wiki/Banda_di_conduzione" title="イタリア語: Banda di conduzione" lang="it" hreflang="it" data-title="Banda di conduzione" data-language-autonym="Italiano" data-language-local-name="イタリア語" class="interlanguage-link-target"><span>Italiano</span></a></li><li class="interlanguage-link interwiki-ko mw-list-item"><a href="https://ko.wikipedia.org/wiki/%EC%A0%84%EB%8F%84%EB%9D%A0" title="韓国語: 전도띠" lang="ko" hreflang="ko" data-title="전도띠" data-language-autonym="한국어" data-language-local-name="韓国語" class="interlanguage-link-target"><span>한국어</span></a></li><li class="interlanguage-link interwiki-ru mw-list-item"><a href="https://ru.wikipedia.org/wiki/%D0%97%D0%BE%D0%BD%D0%B0_%D0%BF%D1%80%D0%BE%D0%B2%D0%BE%D0%B4%D0%B8%D0%BC%D0%BE%D1%81%D1%82%D0%B8" title="ロシア語: Зона проводимости" lang="ru" hreflang="ru" data-title="Зона проводимости" data-language-autonym="Русский" data-language-local-name="ロシア語" class="interlanguage-link-target"><span>Русский</span></a></li><li class="interlanguage-link interwiki-simple mw-list-item"><a href="https://simple.wikipedia.org/wiki/Valence_and_conduction_bands" title="シンプル英語: Valence and conduction bands" lang="en-simple" hreflang="en-simple" data-title="Valence and conduction bands" data-language-autonym="Simple English" data-language-local-name="シンプル英語" class="interlanguage-link-target"><span>Simple English</span></a></li><li class="interlanguage-link interwiki-sv mw-list-item"><a href="https://sv.wikipedia.org/wiki/Ledningsband" title="スウェーデン語: Ledningsband" lang="sv" hreflang="sv" data-title="Ledningsband" data-language-autonym="Svenska" data-language-local-name="スウェーデン語" class="interlanguage-link-target"><span>Svenska</span></a></li><li class="interlanguage-link interwiki-uk mw-list-item"><a href="https://uk.wikipedia.org/wiki/%D0%97%D0%BE%D0%BD%D0%B0_%D0%BF%D1%80%D0%BE%D0%B2%D1%96%D0%B4%D0%BD%D0%BE%D1%81%D1%82%D1%96" title="ウクライナ語: Зона провідності" lang="uk" hreflang="uk" data-title="Зона провідності" data-language-autonym="Українська" data-language-local-name="ウクライナ語" class="interlanguage-link-target"><span>Українська</span></a></li><li class="interlanguage-link interwiki-zh mw-list-item"><a href="https://zh.wikipedia.org/wiki/%E5%AF%BC%E5%B8%A6" title="中国語: 导带" lang="zh" hreflang="zh" data-title="导带" data-language-autonym="中文" data-language-local-name="中国語" class="interlanguage-link-target"><span>中文</span></a></li> </ul> <div class="after-portlet after-portlet-lang"><span class="wb-langlinks-edit wb-langlinks-link"><a href="https://www.wikidata.org/wiki/Special:EntityPage/Q528769#sitelinks-wikipedia" title="言語間リンクを編集" class="wbc-editpage">リンクを編集</a></span></div> </div> </div> </div> </header> <div class="vector-page-toolbar"> <div class="vector-page-toolbar-container"> <div id="left-navigation"> <nav aria-label="名前空間"> <div id="p-associated-pages" class="vector-menu vector-menu-tabs mw-portlet mw-portlet-associated-pages" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-nstab-main" class="selected vector-tab-noicon mw-list-item"><a href="/wiki/%E4%BC%9D%E5%B0%8E%E5%B8%AF" title="本文を閲覧 [c]" accesskey="c"><span>ページ</span></a></li><li id="ca-talk" class="new vector-tab-noicon mw-list-item"><a href="/w/index.php?title=%E3%83%8E%E3%83%BC%E3%83%88:%E4%BC%9D%E5%B0%8E%E5%B8%AF&action=edit&redlink=1" rel="discussion" class="new" title="「本文ページについての議論」 (存在しないページ) [t]" accesskey="t"><span>ノート</span></a></li> </ul> </div> </div> <div id="vector-variants-dropdown" class="vector-dropdown emptyPortlet" > <input type="checkbox" id="vector-variants-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-variants-dropdown" class="vector-dropdown-checkbox " aria-label="別の言語に切り替える" > <label id="vector-variants-dropdown-label" for="vector-variants-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet" aria-hidden="true" ><span class="vector-dropdown-label-text">日本語</span> </label> <div class="vector-dropdown-content"> <div id="p-variants" class="vector-menu mw-portlet mw-portlet-variants emptyPortlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> </ul> </div> </div> </div> </div> </nav> </div> <div id="right-navigation" class="vector-collapsible"> <nav aria-label="表示"> <div id="p-views" class="vector-menu vector-menu-tabs mw-portlet mw-portlet-views" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-view" class="selected vector-tab-noicon mw-list-item"><a href="/wiki/%E4%BC%9D%E5%B0%8E%E5%B8%AF"><span>閲覧</span></a></li><li id="ca-edit" class="vector-tab-noicon mw-list-item"><a href="/w/index.php?title=%E4%BC%9D%E5%B0%8E%E5%B8%AF&action=edit" title="このページのソースコードを編集する [e]" accesskey="e"><span>編集</span></a></li><li id="ca-history" class="vector-tab-noicon mw-list-item"><a href="/w/index.php?title=%E4%BC%9D%E5%B0%8E%E5%B8%AF&action=history" title="このページの過去の版 [h]" accesskey="h"><span>履歴表示</span></a></li> </ul> </div> </div> </nav> <nav class="vector-page-tools-landmark" aria-label="ページツール"> <div id="vector-page-tools-dropdown" class="vector-dropdown vector-page-tools-dropdown" > <input type="checkbox" id="vector-page-tools-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-page-tools-dropdown" class="vector-dropdown-checkbox " aria-label="ツール" > <label id="vector-page-tools-dropdown-label" for="vector-page-tools-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet" aria-hidden="true" ><span class="vector-dropdown-label-text">ツール</span> </label> <div class="vector-dropdown-content"> <div id="vector-page-tools-unpinned-container" class="vector-unpinned-container"> <div id="vector-page-tools" class="vector-page-tools vector-pinnable-element"> <div class="vector-pinnable-header vector-page-tools-pinnable-header vector-pinnable-header-unpinned" data-feature-name="page-tools-pinned" data-pinnable-element-id="vector-page-tools" data-pinned-container-id="vector-page-tools-pinned-container" data-unpinned-container-id="vector-page-tools-unpinned-container" > <div class="vector-pinnable-header-label">ツール</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-page-tools.pin">サイドバーに移動</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-page-tools.unpin">非表示</button> </div> <div id="p-cactions" class="vector-menu mw-portlet mw-portlet-cactions emptyPortlet vector-has-collapsible-items" title="その他の操作" > <div class="vector-menu-heading"> 操作 </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-more-view" class="selected vector-more-collapsible-item mw-list-item"><a href="/wiki/%E4%BC%9D%E5%B0%8E%E5%B8%AF"><span>閲覧</span></a></li><li id="ca-more-edit" class="vector-more-collapsible-item mw-list-item"><a href="/w/index.php?title=%E4%BC%9D%E5%B0%8E%E5%B8%AF&action=edit" title="このページのソースコードを編集する [e]" accesskey="e"><span>編集</span></a></li><li id="ca-more-history" class="vector-more-collapsible-item mw-list-item"><a href="/w/index.php?title=%E4%BC%9D%E5%B0%8E%E5%B8%AF&action=history"><span>履歴表示</span></a></li> </ul> </div> </div> <div id="p-tb" class="vector-menu mw-portlet mw-portlet-tb" > <div class="vector-menu-heading"> 全般 </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="t-whatlinkshere" class="mw-list-item"><a href="/wiki/%E7%89%B9%E5%88%A5:%E3%83%AA%E3%83%B3%E3%82%AF%E5%85%83/%E4%BC%9D%E5%B0%8E%E5%B8%AF" title="ここにリンクしている全ウィキページの一覧 [j]" accesskey="j"><span>リンク元</span></a></li><li id="t-recentchangeslinked" class="mw-list-item"><a href="/wiki/%E7%89%B9%E5%88%A5:%E9%96%A2%E9%80%A3%E3%83%9A%E3%83%BC%E3%82%B8%E3%81%AE%E6%9B%B4%E6%96%B0%E7%8A%B6%E6%B3%81/%E4%BC%9D%E5%B0%8E%E5%B8%AF" rel="nofollow" title="このページからリンクしているページの最近の更新 [k]" accesskey="k"><span>関連ページの更新状況</span></a></li><li id="t-upload" class="mw-list-item"><a href="/wiki/Wikipedia:%E3%83%95%E3%82%A1%E3%82%A4%E3%83%AB%E3%81%AE%E3%82%A2%E3%83%83%E3%83%97%E3%83%AD%E3%83%BC%E3%83%89" title="ファイルをアップロードする [u]" accesskey="u"><span>ファイルをアップロード</span></a></li><li id="t-specialpages" class="mw-list-item"><a href="/wiki/%E7%89%B9%E5%88%A5:%E7%89%B9%E5%88%A5%E3%83%9A%E3%83%BC%E3%82%B8%E4%B8%80%E8%A6%A7" title="特別ページの一覧 [q]" accesskey="q"><span>特別ページ</span></a></li><li id="t-permalink" class="mw-list-item"><a href="/w/index.php?title=%E4%BC%9D%E5%B0%8E%E5%B8%AF&oldid=93247967" title="このページのこの版への固定リンク"><span>この版への固定リンク</span></a></li><li id="t-info" class="mw-list-item"><a href="/w/index.php?title=%E4%BC%9D%E5%B0%8E%E5%B8%AF&action=info" title="このページについての詳細情報"><span>ページ情報</span></a></li><li id="t-cite" class="mw-list-item"><a href="/w/index.php?title=%E7%89%B9%E5%88%A5:%E3%81%93%E3%81%AE%E3%83%9A%E3%83%BC%E3%82%B8%E3%82%92%E5%BC%95%E7%94%A8&page=%E4%BC%9D%E5%B0%8E%E5%B8%AF&id=93247967&wpFormIdentifier=titleform" title="このページの引用方法"><span>このページを引用</span></a></li><li id="t-urlshortener" class="mw-list-item"><a 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data-event-name="pinnable-header.vector-appearance.unpin">非表示</button> </div> </div> </div> </nav> </div> </div> <div id="bodyContent" class="vector-body" aria-labelledby="firstHeading" data-mw-ve-target-container> <div class="vector-body-before-content"> <div class="mw-indicators"> </div> <div id="siteSub" class="noprint">出典: フリー百科事典『ウィキペディア（Wikipedia）』</div> </div> <div id="contentSub"><div id="mw-content-subtitle"></div></div> <div id="mw-content-text" class="mw-body-content"><div class="mw-content-ltr mw-parser-output" lang="ja" dir="ltr"><style data-mw-deduplicate="TemplateStyles:r101304250">.mw-parser-output .ambox{border:1px solid #a2a9b1;border-left:10px solid #36c;background-color:#fbfbfb;box-sizing:border-box}.mw-parser-output .ambox+link+.ambox,.mw-parser-output .ambox+link+style+.ambox,.mw-parser-output .ambox+link+link+.ambox,.mw-parser-output .ambox+.mw-empty-elt+link+.ambox,.mw-parser-output .ambox+.mw-empty-elt+link+style+.ambox,.mw-parser-output .ambox+.mw-empty-elt+link+link+.ambox{margin-top:-1px}html body.mediawiki .mw-parser-output .ambox.mbox-small-left{margin:4px 1em 4px 0;overflow:hidden;width:238px;border-collapse:collapse;font-size:88%;line-height:1.25em}.mw-parser-output .ambox-speedy{border-left:10px solid #b32424;background-color:#fee7e6}.mw-parser-output .ambox-delete{border-left:10px solid #b32424}.mw-parser-output .ambox-content{border-left:10px solid #f28500}.mw-parser-output .ambox-style{border-left:10px solid #fc3}.mw-parser-output .ambox-move{border-left:10px solid #9932cc}.mw-parser-output .ambox-protection{border-left:10px solid #a2a9b1}.mw-parser-output .ambox .mbox-text{border:none;padding:0.25em 0.5em;width:100%;font-size:90%}.mw-parser-output .ambox .mbox-image{border:none;padding:2px 0 2px 0.5em;text-align:center}.mw-parser-output .ambox .mbox-imageright{border:none;padding:2px 0.5em 2px 0;text-align:center}.mw-parser-output .ambox .mbox-empty-cell{border:none;padding:0;width:1px}.mw-parser-output .ambox .mbox-image-div{width:52px}html.client-js body.skin-minerva .mw-parser-output .mbox-text-span{margin-left:23px!important}@media(min-width:720px){.mw-parser-output .ambox{margin:0 10%}}@media print{body.ns-0 .mw-parser-output .ambox{display:none!important}}</style><table class="box-出典の明記 plainlinks metadata ambox ambox-content ambox-出典の明記" role="presentation"><tbody><tr><td class="mbox-image"><div class="mbox-image-div"><span typeof="mw:File"><span><img src="//upload.wikimedia.org/wikipedia/commons/thumb/6/64/Question_book-4.svg/50px-Question_book-4.svg.png" decoding="async" width="50" height="39" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/6/64/Question_book-4.svg/75px-Question_book-4.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/6/64/Question_book-4.svg/100px-Question_book-4.svg.png 2x" data-file-width="262" data-file-height="204" /></span></span></div></td><td class="mbox-text"><div class="mbox-text-span"><b>この記事は<a href="/wiki/Wikipedia:%E6%A4%9C%E8%A8%BC%E5%8F%AF%E8%83%BD%E6%80%A7" title="Wikipedia:検証可能性">検証可能</a>な<a href="/wiki/Wikipedia:%E4%BF%A1%E9%A0%BC%E3%81%A7%E3%81%8D%E3%82%8B%E6%83%85%E5%A0%B1%E6%BA%90" title="Wikipedia:信頼できる情報源">参考文献や出典</a>が全く示されていないか、不十分です。</b><span class="hide-when-compact"> <a href="/wiki/Wikipedia:%E5%87%BA%E5%85%B8%E3%82%92%E6%98%8E%E8%A8%98%E3%81%99%E3%82%8B" title="Wikipedia:出典を明記する">出典を追加</a>して記事の信頼性向上にご協力ください。<small>（<a href="/wiki/Template:%E5%87%BA%E5%85%B8%E3%81%AE%E6%98%8E%E8%A8%98/doc" title="Template:出典の明記/doc">このテンプレートの使い方</a>）</small><br /><small><span class="plainlinks">出典検索<a href="/wiki/Template:Find_sources_mainspace" title="Template:Find sources mainspace"><sup>?</sup></a>: <a rel="nofollow" class="external text" href="//www.google.co.jp/search?hl=ja&as_eq=wikipedia&q=%22%E4%BC%9D%E5%B0%8E%E5%B8%AF%22&num=50">"伝導帯"</a> – <a rel="nofollow" class="external text" href="//www.google.co.jp/search?hl=ja&q=%22%E4%BC%9D%E5%B0%8E%E5%B8%AF%22&tbm=nws">ニュース</a> <b>·</b> <a rel="nofollow" class="external text" href="//www.google.co.jp/search?hl=ja&tbs=bks:1&q=%22%E4%BC%9D%E5%B0%8E%E5%B8%AF%22">書籍</a> <b>·</b> <a rel="nofollow" class="external text" href="//scholar.google.co.jp/scholar?num=100&hl=ja&q=%22%E4%BC%9D%E5%B0%8E%E5%B8%AF%22">スカラー</a> <b>·</b> <a rel="nofollow" class="external text" href="https://ci.nii.ac.jp/opensearch/search?lang=ja&q=%22%E4%BC%9D%E5%B0%8E%E5%B8%AF%22&range=2&count=200&sortorder=1&type=0">CiNii</a> <b>·</b> <a rel="nofollow" class="external text" href="https://www.jstage.jst.go.jp/result/global/-char/ja?globalSearchKey=%22%E4%BC%9D%E5%B0%8E%E5%B8%AF%22">J-STAGE</a> <b>·</b> <a rel="nofollow" class="external text" href="https://ndlsearch.ndl.go.jp/api/openurl?any=%22%E4%BC%9D%E5%B0%8E%E5%B8%AF%22">NDL</a> <b>·</b> <a rel="nofollow" class="external text" href="https://dlib.jp/?q=%22%E4%BC%9D%E5%B0%8E%E5%B8%AF%22">dlib.jp</a> <b>·</b> <a rel="nofollow" class="external text" href="https://jpsearch.go.jp/csearch/jps-cross?csid=jps-cross&keyword=%22%E4%BC%9D%E5%B0%8E%E5%B8%AF%22">ジャパンサーチ</a> <b>·</b> <a rel="nofollow" class="external text" href="https://wikipedialibrary.wmflabs.org/partners/">TWL</a></span></small></span> <span class="date-container"><i>(<span class="date"><span title="2023年1月5日 (木) 11:56 (UTC)">2023年1月</span></span>)</i></span></div></td></tr></tbody></table> <p><b>伝導帯</b>(でんどうたい、Conduction band)は、<a href="/wiki/%E3%83%90%E3%83%B3%E3%83%89%E3%82%AE%E3%83%A3%E3%83%83%E3%83%97" title="バンドギャップ">バンドギャップ</a>のある系において、バンドギャップの直上にある、空のバンドのこと。バンドギャップのない場合にも、<a href="/wiki/%E4%BE%A1%E9%9B%BB%E5%AD%90%E5%B8%AF" title="価電子帯">価電子帯</a>、伝導帯の区別ができる場合がある（例：<a href="/wiki/%E5%8D%8A%E9%87%91%E5%B1%9E_(%E3%83%90%E3%83%B3%E3%83%89%E7%90%86%E8%AB%96)" title="半金属 (バンド理論)">半金属</a>）。しかし、純然たる金属のバンドにおいては、価電子帯、伝導帯の区別が判然としない（区別できない）場合もある。 </p> <div class="mw-heading mw-heading2"><h2 id="関連項目"><span id=".E9.96.A2.E9.80.A3.E9.A0.85.E7.9B.AE"></span>関連項目</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=%E4%BC%9D%E5%B0%8E%E5%B8%AF&action=edit&section=1" title="節を編集: 関連項目"><span>編集</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a href="/wiki/%E7%89%A9%E7%90%86%E5%AD%A6" title="物理学">物理学</a></li></ul> <div class="navbox" aria-labelledby="半導体" style="border-collapse:collapse;padding:3px"><table class="nowraplinks mw-collapsible autocollapse navbox-inner" style="background:transparent;color:inherit;min-width:100%;border-spacing:0px;border-collapse:separate"><tbody><tr><th scope="col" class="navbox-title" colspan="2"><div style="float:left;width:6em;text-align:left"><div class="noprint plainlinks navbar hlist" style="white-space:nowrap;font-size:60%;font-weight:normal;background-color:transparent;padding:0;color:#000;;border:none;"><ul 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href="/wiki/%E3%83%9E%E3%82%A4%E3%82%AF%E3%83%AD%E3%83%97%E3%83%AD%E3%82%BB%E3%83%83%E3%82%B5" title="マイクロプロセッサ">マイクロプロセッサ</a></li> <li><a href="/wiki/%E5%8D%8A%E5%B0%8E%E4%BD%93%E3%83%A1%E3%83%A2%E3%83%AA" title="半導体メモリ">半導体メモリ</a></li> <li><a href="/wiki/Transistor-transistor_logic" title="Transistor-transistor logic">TTL論理素子</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/%E3%83%90%E3%83%B3%E3%83%89%E7%90%86%E8%AB%96" title="バンド理論">バンド理論</a></th><td class="navbox-list navbox-even hlist hlist-hyphen" style="text-align:left;border-left-width:2px;border-left-style:solid;width:100%;padding:0px"><div style="padding:0em 0.25em"> <ul><li><a href="/wiki/%E3%83%90%E3%83%B3%E3%83%89%E6%A7%8B%E9%80%A0" title="バンド構造">バンド構造</a></li> <li><a href="/wiki/%E3%83%90%E3%83%B3%E3%83%89%E5%9B%B3" title="バンド図">バンド図</a></li> <li><a href="/wiki/%E3%83%90%E3%83%B3%E3%83%89%E8%A8%88%E7%AE%97" title="バンド計算">バンド計算</a></li> <li><a href="/wiki/%E7%AC%AC%E4%B8%80%E5%8E%9F%E7%90%86%E3%83%90%E3%83%B3%E3%83%89%E8%A8%88%E7%AE%97" title="第一原理バンド計算">第一原理バンド計算</a></li> <li><a class="mw-selflink selflink">伝導帯</a></li> <li><a href="/wiki/%E4%BE%A1%E9%9B%BB%E5%AD%90%E5%B8%AF" title="価電子帯">価電子帯</a></li> <li><a href="/wiki/%E3%83%90%E3%83%B3%E3%83%89%E3%82%AE%E3%83%A3%E3%83%83%E3%83%97" title="バンドギャップ">禁制帯</a></li> <li><a href="/wiki/%E3%83%95%E3%82%A7%E3%83%AB%E3%83%9F%E3%82%A8%E3%83%8D%E3%83%AB%E3%82%AE%E3%83%BC" title="フェルミエネルギー">フェルミ準位</a></li> <li><a href="/wiki/%E4%B8%8D%E7%B4%94%E7%89%A9%E6%BA%96%E4%BD%8D" class="mw-redirect" title="不純物準位">不純物準位</a></li> <li><a href="/wiki/%E8%87%AA%E7%94%B1%E9%9B%BB%E5%AD%90" title="自由電子">自由電子</a></li> <li><a href="/wiki/%E6%AD%A3%E5%AD%94" title="正孔">正孔</a></li> <li><a href="/wiki/%E3%83%89%E3%83%BC%E3%83%91%E3%83%B3%E3%83%88" title="ドーパント">ドーパント</a> <ul><li><a href="/wiki/%E3%83%89%E3%83%BC%E3%83%91%E3%83%B3%E3%83%88#ドナー" title="ドーパント">ドナー</a></li> <li><a href="/wiki/%E3%83%89%E3%83%BC%E3%83%91%E3%83%B3%E3%83%88#アクセプター" title="ドーパント">アクセプタ</a></li></ul></li> <li><a href="/wiki/%E7%89%A9%E6%80%A7%E7%89%A9%E7%90%86%E5%AD%A6" title="物性物理学">物性物理学</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/%E3%83%88%E3%83%A9%E3%83%B3%E3%82%B8%E3%82%B9%E3%82%BF" title="トランジスタ">トランジスタ</a></th><td class="navbox-list navbox-odd hlist hlist-hyphen" style="text-align:left;border-left-width:2px;border-left-style:solid;width:100%;padding:0px"><div style="padding:0em 0.25em"> <ul><li><a href="/wiki/%E3%83%90%E3%82%A4%E3%83%9D%E3%83%BC%E3%83%A9%E3%83%88%E3%83%A9%E3%83%B3%E3%82%B8%E3%82%B9%E3%82%BF" title="バイポーラトランジスタ">バイポーラトランジスタ</a> <ul><li><a href="/wiki/%E7%B5%B6%E7%B8%81%E3%82%B2%E3%83%BC%E3%83%88%E3%83%90%E3%82%A4%E3%83%9D%E3%83%BC%E3%83%A9%E3%83%88%E3%83%A9%E3%83%B3%E3%82%B8%E3%82%B9%E3%82%BF" title="絶縁ゲートバイポーラトランジスタ">絶縁ゲートバイポーラトランジスタ</a></li></ul></li> <li><a href="/wiki/%E9%9B%BB%E7%95%8C%E5%8A%B9%E6%9E%9C%E3%83%88%E3%83%A9%E3%83%B3%E3%82%B8%E3%82%B9%E3%82%BF" title="電界効果トランジスタ">電界効果トランジスタ</a> <ul><li><a href="/wiki/%E8%96%84%E8%86%9C%E3%83%88%E3%83%A9%E3%83%B3%E3%82%B8%E3%82%B9%E3%82%BF" title="薄膜トランジスタ">薄膜トランジスタ</a></li> <li><a href="/wiki/MOSFET" title="MOSFET">MOSFET</a> <ul><li><a href="/wiki/%E3%83%91%E3%83%AF%E3%83%BCMOSFET" title="パワーMOSFET">パワーMOSFET</a></li> <li><a href="/wiki/CMOS" title="CMOS">CMOS</a></li></ul></li> <li><a href="/wiki/%E9%AB%98%E9%9B%BB%E5%AD%90%E7%A7%BB%E5%8B%95%E5%BA%A6%E3%83%88%E3%83%A9%E3%83%B3%E3%82%B8%E3%82%B9%E3%82%BF" title="高電子移動度トランジスタ">HEMT</a></li></ul></li> <li><a href="/wiki/%E3%82%B5%E3%82%A4%E3%83%AA%E3%82%B9%E3%82%BF" title="サイリスタ">サイリスタ</a> <ul><li><a href="/wiki/%E9%9D%99%E9%9B%BB%E8%AA%98%E5%B0%8E%E3%82%B5%E3%82%A4%E3%83%AA%E3%82%B9%E3%82%BF" title="静電誘導サイリスタ">静電誘導サイリスタ</a></li> <li><a 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style="text-align:left;border-left-width:2px;border-left-style:solid;width:100%;padding:0px"><div style="padding:0em 0.25em"> <ul><li><a href="/wiki/Pn%E6%8E%A5%E5%90%88" title="Pn接合">pn接合</a></li> <li><a href="/wiki/%E3%83%9B%E3%83%A2%E6%8E%A5%E5%90%88_(%E5%8D%8A%E5%B0%8E%E4%BD%93)" title="ホモ接合 (半導体)">ホモ接合</a></li> <li><a href="/wiki/%E3%83%98%E3%83%86%E3%83%AD%E6%8E%A5%E5%90%88_(%E5%8D%8A%E5%B0%8E%E4%BD%93)" title="ヘテロ接合 (半導体)">ヘテロ接合</a> <ul><li><a href="/w/index.php?title=%E5%8D%98%E4%B8%80%E3%83%98%E3%83%86%E3%83%AD%E6%8E%A5%E5%90%88&action=edit&redlink=1" class="new" title="「単一ヘテロ接合」 (存在しないページ)">単一ヘテロ接合</a></li> <li><a href="/wiki/%E3%83%80%E3%83%96%E3%83%AB%E3%83%98%E3%83%86%E3%83%AD%E6%8E%A5%E5%90%88" title="ダブルヘテロ接合">ダブルヘテロ接合</a></li></ul></li> <li><a href="/wiki/%E7%A9%BA%E4%B9%8F%E5%B1%A4" title="空乏層">空乏層</a></li> <li><a href="/wiki/%E9%87%91%E5%B1%9E%E5%8D%8A%E5%B0%8E%E4%BD%93%E6%8E%A5%E5%90%88" title="金属半導体接合">金属半導体接合</a></li> <li><a href="/wiki/%E3%82%B7%E3%83%A7%E3%83%83%E3%83%88%E3%82%AD%E3%83%BC%E6%8E%A5%E5%90%88" title="ショットキー接合">ショットキー接合</a></li> <li><a href="/wiki/%E3%82%AA%E3%83%BC%E3%83%9F%E3%83%83%E3%82%AF%E6%8E%A5%E8%A7%A6" title="オーミック接触">オーミック接触</a></li> <li><a href="/wiki/%E9%9B%BB%E5%AD%90%E5%B7%A5%E5%AD%A6" title="電子工学">電子工学</a> <ul><li><a href="/wiki/%E3%83%91%E3%83%AF%E3%83%BC%E3%82%A8%E3%83%AC%E3%82%AF%E3%83%88%E3%83%AD%E3%83%8B%E3%82%AF%E3%82%B9" title="パワーエレクトロニクス">パワーエレクトロニクス</a> <ul><li><a href="/wiki/%E9%9B%BB%E5%8A%9B%E7%94%A8%E5%8D%8A%E5%B0%8E%E4%BD%93%E7%B4%A0%E5%AD%90" title="電力用半導体素子">電力用半導体素子</a></li></ul></li> <li><a href="/wiki/%E5%85%89%E3%82%A8%E3%83%AC%E3%82%AF%E3%83%88%E3%83%AD%E3%83%8B%E3%82%AF%E3%82%B9" title="光エレクトロニクス">光エレクトロニクス</a></li></ul></li> <li><a href="/wiki/%E9%9B%BB%E5%AD%90%E5%9B%9E%E8%B7%AF" title="電子回路">電子回路</a> <ul><li><a href="/wiki/%E5%A2%97%E5%B9%85%E5%9B%9E%E8%B7%AF" title="増幅回路">増幅回路</a></li> <li><a href="/wiki/%E9%AB%98%E5%91%A8%E6%B3%A2%E5%9B%9E%E8%B7%AF" title="高周波回路">高周波回路</a></li></ul></li> <li><a href="/wiki/%E5%8D%8A%E5%B0%8E%E4%BD%93%E5%B7%A5%E5%AD%A6" title="半導体工学">半導体工学</a></li> <li><a href="/wiki/%E5%8D%8A%E5%B0%8E%E4%BD%93%E3%83%87%E3%83%90%E3%82%A4%E3%82%B9%E8%A3%BD%E9%80%A0" title="半導体デバイス製造">半導体デバイス製造</a></li> <li><a href="/wiki/%E9%87%91%E5%B1%9E" title="金属">金属</a></li> <li><a href="/wiki/%E7%B5%B6%E7%B8%81%E4%BD%93" title="絶縁体">絶縁体</a></li> <li><a href="/wiki/%E7%86%B1%E9%85%B8%E5%8C%96" title="熱酸化">熱酸化</a></li> <li><a href="/wiki/%E3%83%95%E3%82%A3%E3%83%A9%E3%83%87%E3%83%AB%E3%83%95%E3%82%A3%E3%82%A2%E5%8D%8A%E5%B0%8E%E4%BD%93%E6%8C%87%E6%95%B0" title="フィラデルフィア半導体指数">フィラデルフィア半導体指数</a></li></ul> </div></td></tr><tr><td class="navbox-abovebelow hlist hlist-hyphen" colspan="2"> <ul><li><span typeof="mw:File"><a href="/wiki/%E3%83%95%E3%82%A1%E3%82%A4%E3%83%AB:Folder_Hexagonal_Icon.svg" class="mw-file-description" title="カテゴリ"><img alt="カテゴリ" 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