{"id":3090,"date":"2023-05-26T20:41:45","date_gmt":"2023-05-26T11:41:45","guid":{"rendered":"http:\/\/tuat-chemphys.net\/?p=3090"},"modified":"2026-03-18T12:56:09","modified_gmt":"2026-03-18T03:56:09","slug":"%e9%ab%98%e7%a7%bb%e5%8b%95%e5%ba%a6%e3%81%ae%e5%8d%8a%e5%b0%8e%e4%bd%93%e3%82%b3%e3%83%ad%e3%82%a4%e3%83%89%e9%87%8f%e5%ad%90%e3%83%89%e3%83%83%e3%83%88%e8%b6%85%e6%a0%bc%e5%ad%90%e3%82%92%e5%ae%9f","status":"publish","type":"post","link":"https:\/\/tuat-chemphys.net\/?p=3090","title":{"rendered":"Metallic behaviour in superlattice of semiconductor colloidal quantum dots. \u534a\u5c0e\u4f53\u30b3\u30ed\u30a4\u30c9\u91cf\u5b50\u30c9\u30c3\u30c8\u8d85\u683c\u5b50\u306b\u304a\u3051\u308b\u91d1\u5c5e\u7684\u6319\u52d5 (Nature Comm.)"},"content":{"rendered":"\n<p class=\"has-white-color has-midnight-gradient-background has-text-color has-background\">2023\u5e74\u30ce\u30fc\u30d9\u30eb\u5316\u5b66\u8cde\uff1a\u91cf\u5b50\u30c9\u30c3\u30c8\u306e\u767a\u898b\u3068\u5408\u6210 <a href=\"https:\/\/www.nobelprize.org\/prizes\/chemistry\/2023\/press-release\/\">Nobel Prize in Chemistry 2023<\/a> | \u65e5\u672c\u8a9e\u306e\u8a18\u4e8b\uff1a<a href=\"https:\/\/tuat-chemphys.net\/?p=3594\">\u91cf\u5b50\u30c9\u30c3\u30c8\uff1a\u5316\u5b66\u7269\u7406\u5de5\u5b66\u306e\u9b45\u529b\u3068\u53ef\u80fd\u6027<\/a><\/p>\n\n\n\n<p class=\"has-text-align-center\"><strong>2023\/5<\/strong> <a href=\"https:\/\/www.tuat.ac.jp\/documents\/tuat\/outline\/disclosure\/pressrelease\/2023\/20230525_01.pdf\">\u5927\u5b66\u306e\u30d7\u30ec\u30b9\u30ea\u30ea\u30fc\u30b9 (pdf @ tuat.ac.jp)<\/a> and <a rel=\"noreferrer noopener\" href=\"https:\/\/www.riken.jp\/press\/2023\/20230526_4\/index.html\" target=\"_blank\">riken.jp<\/a>.  <em><strong>Nature Communications<\/strong><\/em> (<a href=\"https:\/\/www.nature.com\/articles\/s41467-023-38216-y.pdf\">Open Access)<\/a> or <a rel=\"noreferrer noopener\" href=\"https:\/\/doi.org\/10.1038\/s41467-023-38216-y\" target=\"_blank\">DOI<\/a> or <a href=\"https:\/\/www.eurekalert.org\/news-releases\/990430\">Forging a dream material with semiconductor q | EurekAlert!<\/a><\/p>\n\n\n\n<h5 class=\"wp-block-heading\"><em>\u9ad8\u79fb\u52d5\u5ea6\u306e\u534a\u5c0e\u4f53\u30b3\u30ed\u30a4\u30c9\u91cf\u5b50\u30c9\u30c3\u30c8\u8d85\u683c\u5b50\u3092\u5b9f\u73fe<\/em>   <em>\u30fc\u30a8\u30d4\u30bf\u30ad\u30b7\u30e3\u30eb\u63a5\u5408\u306b\u3088\u308a\u3001\u9ad8\u6027\u80fd\u5316\u306b\u6210\u529f\u30fc<\/em> <a href=\"https:\/\/doi.org\/10.1038\/s41467-023-38216-y\">Enabling metallic behaviour in two-dimensional superlattice of semiconductor colloidal quantum dots<\/a><\/h5>\n\n\n\n<p>\u3000\u7406\u5316\u5b66\u7814\u7a76\u6240\uff08\u7406\u7814\uff09\u5275\u767a\u7269\u6027\u79d1\u5b66\u7814\u7a76\u30bb\u30f3\u30bf\u30fc\u5275\u767a\u30c7\u30d0\u30a4\u30b9\u7814\u7a76\u30c1\u30fc\u30e0\u306e\u5ca9\u4f50\u7fa9\u5b8f\u30c1\u30fc\u30e0\u30ea\u30fc\u30c0\u30fc\u3001\u30b5\u30c8\u30ea\u30a2\u30fb\u30d3\u30b9\u30ea\u4e0a\u7d1a\u7814\u7a76\u54e1\uff08\u7814\u7a76\u5f53\u6642\u3001\u73fe\u5ba2\u54e1\u7814\u7a76\u54e1\u3001\u6771\u4eac\u8fb2\u5de5\u5927\u5b66\u5927\u5b66\u9662\u5de5\u5b66\u7814\u7a76\u9662\u51c6\u6559\u6388\uff09\u3089\u306e\u5171\u540c\u7814\u7a76\u30b0\u30eb\u30fc\u30d7\u306f\u3001\u534a\u5c0e\u4f53\u30b3\u30ed\u30a4\u30c9<strong>\u91cf\u5b50\u30c9\u30c3\u30c8[1]<\/strong>\u306e\u9ad8\u79e9\u5e8f\u306a<strong>\u8d85\u683c\u5b50[2]<\/strong>\u8584\u819c\u3092\u4f5c\u88fd\u3057\u305f\u7d50\u679c\u3001<strong>\u79fb\u52d5\u5ea6[3]<\/strong>\u306e\u5927\u5e45\u306a\u5897\u5f37\u306b\u6210\u529f\u3057\u3001\u30ad\u30e3\u30ea\u30a2\u30c9\u30fc\u30d7[4]\u306b\u3088\u308b\u91d1\u5c5e\u7684\u4f1d\u5c0e\u6027\u3092\u521d\u3081\u3066\u5b9f\u73fe\u3057\u307e\u3057\u305f\u3002<\/p>\n\n\n\n<p>\u672c\u7814\u7a76\u6210\u679c\u306f\u3001\u5c06\u6765\u306e<strong>\u5149\u96fb\u30c7\u30d0\u30a4\u30b9<\/strong>[5]\u958b\u767a\u306e\u305f\u3081\u306e\u65b0\u305f\u306a\u57fa\u76e4\u306b\u306a\u308b\u3082\u306e\u3068\u671f\u5f85\u3067\u304d\u307e\u3059\u3002\u3053\u308c\u307e\u3067\u3001\u30b3\u30ed\u30a4\u30c9\u91cf\u5b50\u30c9\u30c3\u30c8\u304b\u3089\u306a\u308b\u6750\u6599\u3092\u5149\u96fb\u30c7\u30d0\u30a4\u30b9\u3078\u5c55\u958b\u3059\u308b\u5834\u5408\u3001\u7279\u306b\u79fb\u52d5\u5ea6\u306e\u4f4e\u3055\u304c\u969c\u5bb3\u3068\u306a\u3063\u3066\u3044\u307e\u3057\u305f\u3002<br>\u3000\u4eca\u56de\u3001\u5171\u540c\u7814\u7a76\u30b0\u30eb\u30fc\u30d7\u306f\u3001<strong>\u6709\u6a5f\u914d\u4f4d\u5b50<\/strong>[6]\u306b\u3088\u3063\u3066\u5b89\u5b9a\u5316\u3055\u308c\u305f\u786b\u5316\u925b\uff08PbS\uff09\u30b3\u30ed\u30a4\u30c9\u91cf\u5b50\u30c9\u30c3\u30c8\u3092\u6709\u6a5f\u6eb6\u5a92\u8868\u9762\u4e0a\u3067\u96c6\u7a4d\u3055\u305b\u307e\u3057\u305f\u3002\u305d\u3057\u3066\u3001\u91cf\u5b50\u30c9\u30c3\u30c8\u306e\u8868\u9762\u3092\u5f62\u6210\u3059\u308b\u3044\u304f\u3064\u304b\u306e\u7d50\u6676\u9762\u304b\u3089\u9078\u629e\u7684\u306b\u6709\u6a5f\u914d\u4f4d\u5b50\u3092\u9664\u53bb\u3059\u308b\u3053\u3068\u3067\u3001\u91cf\u5b50\u30c9\u30c3\u30c8\u540c\u58eb\u3092\u30a8\u30d4\u30bf\u30ad\u30b7\u30e3\u30eb\u63a5\u5408[7]\u3055\u305b\u3001\u7d50\u6676\u306e\u5411\u304d\u3092\u305d\u308d\u3048\u3066\u5e83\u3044\u9762\u7a4d\u306b\u914d\u5217\u3055\u305b\u305f\u300c\u91cf\u5b50\u30c9\u30c3\u30c8\u8d85\u683c\u5b50\u300d\u3068\u3082\u547c\u3076\u3079\u304d\u8584\u819c\u3092\u30b7\u30ea\u30b3\u30f3\u57fa\u677f\u4e0a\u306b\u5199\u3057\u53d6\u308b\u3053\u3068\u306b\u6210\u529f\u3057\u307e\u3057\u305f\u3002\u3053\u306e\u8d85\u683c\u5b50\u8584\u819c\u306e\u96fb\u6c17\u4f1d\u5c0e\u7279\u6027\u3092\u96fb\u754c\u52b9\u679c\u30c8\u30e9\u30f3\u30b8\u30b9\u30bf[8]\u30c7\u30d0\u30a4\u30b9\u306b\u3088\u308a\u8abf\u3079\u305f\u3068\u3053\u308d\u3001\u5f93\u6765\u306e\u5546\u7528\u30b3\u30ed\u30a4\u30c9\u91cf\u5b50\u30c9\u30c3\u30c8\u8584\u819c\u3088\u308a\u30821,000\uff5e100\u4e07\u500d\u4ee5\u4e0a\u3082\u5927\u304d\u306a\u79fb\u52d5\u5ea6\u3092\u89b3\u6e2c\u3057\u307e\u3057\u305f\u3002\u307e\u305f\u4f4e\u6e29\u3067\u306e\u96fb\u6c17\u62b5\u6297\u6e2c\u5b9a\u304b\u3089\u3001\u3053\u306e\u8584\u819c\u306f\u30ad\u30e3\u30ea\u30a2\u30c9\u30fc\u30d7\u306b\u3088\u3063\u3066\u91d1\u5c5e\u7684\u4f1d\u5c0e\u6027\u3092\u793a\u3059\u3053\u3068\u3082\u660e\u3089\u304b\u306b\u306a\u308a\u307e\u3057\u305f\u3002<br>\u3000\u672c\u7814\u7a76\u306f\u3001\u79d1\u5b66\u96d1\u8a8c <strong>Nature Communications<\/strong> <a href=\"https:\/\/doi.org\/10.1038\/s41467-023-38216-y\">(Open Access)<\/a>\uff085\u670826\u65e5\u4ed8\uff09\u306b\u63b2\u8f09\u3055\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<p>Press release file: <a href=\"https:\/\/www.tuat.ac.jp\/documents\/tuat\/outline\/disclosure\/pressrelease\/2023\/20230525_01.pdf\">pdf (tuat.ac.jp)<\/a> and at <a href=\"https:\/\/www.riken.jp\/press\/2023\/20230526_4\/index.html\">RIKEN.jp<\/a><\/p>\n\n\n\n<p>Bisri\u51c6\u6559\u6388\u306e\u30b3\u30e1\u30f3\u30c8\uff1a\u300c\u3053\u306e\u7a2e\u306e\u6750\u6599\u3067\u3055\u3089\u306a\u308b\u7814\u7a76\u3092\u884c\u3046\u4e88\u5b9a\u3067\u3042\u308a\u3001\u91cf\u5b50\u30c9\u30c3\u30c8\u8d85\u683c\u5b50\u306e\u80fd\u529b\u306e\u5927\u5e45\u306a\u5411\u4e0a\u306b\u3064\u306a\u304c\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b\u3068\u8003\u3048\u3066\u3044\u307e\u3059\u3002\u73fe\u5728\u306e\u30c7\u30d0\u30a4\u30b9\u306e\u6539\u5584\u306b\u52a0\u3048\u3066\u3001\u771f\u306e\u5168\u300c\u91cf\u5b50\u30c9\u30c3\u30c8\u300d\u76f4\u63a5\u30a8\u30ec\u30af\u30c8\u30ed\u30eb\u30df\u30cd\u30bb\u30f3\u30b9\u30c7\u30d0\u30a4\u30b9\u3001\u96fb\u6c17\u99c6\u52d5\u30ec\u30fc\u30b6\u30fc\u3001\u71b1\u96fb\u30c7\u30d0\u30a4\u30b9\u3001\u9ad8\u611f\u5ea6\u691c\u51fa\u5668\u3084\u30bb\u30f3\u30b5\u30fc\u306a\u3069\u3001\u3053\u308c\u307e\u3067\u91cf\u5b50\u30c9\u30c3\u30c8\u6750\u6599\u306e\u7bc4\u56f2\u3092\u8d85\u3048\u3066\u3044\u305f\u65b0\u3057\u3044\u7528\u9014\u306b\u3064\u306a\u304c\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u300d <\/p>\n\n\n\n<div class=\"wp-block-jetpack-tiled-gallery aligncenter is-style-rectangular\"><div class=\"tiled-gallery__gallery\"><div class=\"tiled-gallery__row\"><div class=\"tiled-gallery__col\" style=\"flex-basis:100.00000%\"><figure class=\"tiled-gallery__item\"><img decoding=\"async\" data-attachment-id=\"3094\" data-permalink=\"https:\/\/tuat-chemphys.net\/?attachment_id=3094\" data-orig-file=\"https:\/\/i0.wp.com\/tuat-chemphys.net\/wp-content\/uploads\/2023\/05\/bisri-naturecomm1.png?fit=1270%2C592&amp;ssl=1\" data-orig-size=\"1270,592\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"bisri-naturecomm1\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/tuat-chemphys.net\/wp-content\/uploads\/2023\/05\/bisri-naturecomm1.png?fit=810%2C377&amp;ssl=1\" data-attachment-id=\"3094\" data-permalink=\"https:\/\/tuat-chemphys.net\/?attachment_id=3094\" data-orig-file=\"https:\/\/i0.wp.com\/tuat-chemphys.net\/wp-content\/uploads\/2023\/05\/bisri-naturecomm1.png?fit=1270%2C592&amp;ssl=1\" data-orig-size=\"1270,592\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"bisri-naturecomm1\" data-image-description=\"\" 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data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"bisri-naturecomm2\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/tuat-chemphys.net\/wp-content\/uploads\/2023\/05\/bisri-naturecomm2.png?fit=810%2C504&amp;ssl=1\" role=\"button\" tabindex=\"0\" aria-label=\"Open image 3 of 4 in full-screen\"srcset=\"https:\/\/i1.wp.com\/tuat-chemphys.net\/wp-content\/uploads\/2023\/05\/bisri-naturecomm2-1024x637.png?strip=info&#038;w=600 600w,https:\/\/i1.wp.com\/tuat-chemphys.net\/wp-content\/uploads\/2023\/05\/bisri-naturecomm2-1024x637.png?strip=info&#038;w=900 900w,https:\/\/i1.wp.com\/tuat-chemphys.net\/wp-content\/uploads\/2023\/05\/bisri-naturecomm2-1024x637.png?strip=info&#038;w=1200 1200w,https:\/\/i1.wp.com\/tuat-chemphys.net\/wp-content\/uploads\/2023\/05\/bisri-naturecomm2-1024x637.png?strip=info&#038;w=1341 1341w\" alt=\"\" data-height=\"834\" data-id=\"3092\" data-link=\"https:\/\/tuat-chemphys.net\/?attachment_id=3092\" data-url=\"https:\/\/tuat-chemphys.net\/wp-content\/uploads\/2023\/05\/bisri-naturecomm2-1024x637.png\" data-width=\"1341\" src=\"https:\/\/i1.wp.com\/tuat-chemphys.net\/wp-content\/uploads\/2023\/05\/bisri-naturecomm2-1024x637.png\" data-amp-layout=\"responsive\"\/><\/figure><\/div><div class=\"tiled-gallery__col\" style=\"flex-basis:41.46305%\"><figure class=\"tiled-gallery__item\"><img decoding=\"async\" data-attachment-id=\"3091\" data-permalink=\"https:\/\/tuat-chemphys.net\/?attachment_id=3091\" 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data-orig-file=\"https:\/\/i0.wp.com\/tuat-chemphys.net\/wp-content\/uploads\/2023\/05\/bisri-naturecomm3.png?fit=1353%2C629&amp;ssl=1\" data-orig-size=\"1353,629\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"bisri-naturecomm3\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/tuat-chemphys.net\/wp-content\/uploads\/2023\/05\/bisri-naturecomm3.png?fit=810%2C377&amp;ssl=1\" role=\"button\" tabindex=\"0\" aria-label=\"Open image 4 of 4 in full-screen\"srcset=\"https:\/\/i1.wp.com\/tuat-chemphys.net\/wp-content\/uploads\/2023\/05\/bisri-naturecomm3-1024x476.png?strip=info&#038;w=600 600w,https:\/\/i1.wp.com\/tuat-chemphys.net\/wp-content\/uploads\/2023\/05\/bisri-naturecomm3-1024x476.png?strip=info&#038;w=900 900w,https:\/\/i1.wp.com\/tuat-chemphys.net\/wp-content\/uploads\/2023\/05\/bisri-naturecomm3-1024x476.png?strip=info&#038;w=1200 1200w,https:\/\/i1.wp.com\/tuat-chemphys.net\/wp-content\/uploads\/2023\/05\/bisri-naturecomm3-1024x476.png?strip=info&#038;w=1353 1353w\" alt=\"\" data-height=\"629\" data-id=\"3091\" data-link=\"https:\/\/tuat-chemphys.net\/?attachment_id=3091\" data-url=\"https:\/\/tuat-chemphys.net\/wp-content\/uploads\/2023\/05\/bisri-naturecomm3-1024x476.png\" data-width=\"1353\" src=\"https:\/\/i1.wp.com\/tuat-chemphys.net\/wp-content\/uploads\/2023\/05\/bisri-naturecomm3-1024x476.png\" data-amp-layout=\"responsive\"\/><\/figure><\/div><\/div><\/div><\/div>\n\n\n\n<div data-wp-interactive=\"core\/file\" class=\"wp-block-file\"><object data-wp-bind--hidden=\"!state.hasPdfPreview\" hidden class=\"wp-block-file__embed\" data=\"https:\/\/tuat-chemphys.net\/wp-content\/uploads\/2023\/05\/20230525_naturecomm-bisri.pdf\" type=\"application\/pdf\" style=\"width:100%;height:600px\" aria-label=\"Embed of 20230525_naturecomm-bisri.\"><\/object><a id=\"wp-block-file--media-6a799860-8e18-4d16-99e1-8686e2e1b542\" href=\"https:\/\/tuat-chemphys.net\/wp-content\/uploads\/2023\/05\/20230525_naturecomm-bisri.pdf\">20230525_naturecomm-bisri<\/a><a href=\"https:\/\/tuat-chemphys.net\/wp-content\/uploads\/2023\/05\/20230525_naturecomm-bisri.pdf\" class=\"wp-block-file__button wp-element-button\" download aria-describedby=\"wp-block-file--media-6a799860-8e18-4d16-99e1-8686e2e1b542\">\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9<\/a><\/div>\n\n\n\n<p><strong>A team of researchers have succeeded in creating a \u201csuperlattice\u201d of semiconductor quantum dots that can behave like a metal, potentially imparting exciting new properties to this popular class of materials.<\/strong><\/p>\n\n\n\n<p>Semiconducting colloidal quantum dots have garnered tremendous research interest due to their special optical properties, which arise from the quantum confinement effect. They are used in solar cells, where they can improve the efficiency of energy conversion, biological imaging, where they can be used as fluorescent probes, electronic displays, and even quantum computing, where their ability to trap and manipulate individual electrons can be exploited.<\/p>\n\n\n\n<p>However, getting semiconductor quantum dots to efficiently conduct electricity has been a major challenge, impeding their full use. This is primarily due to their lack of orientational order in assemblies. According to <a rel=\"noreferrer noopener\" href=\"https:\/\/www.sustainable-quantum-nanomaterials-devices.com\/\" target=\"_blank\">Satria Zulkarnaen Bisri<\/a>, lead researcher on the project, who carried out the research at RIKEN and is now at <strong>Tokyo University of Agriculture and Technology<\/strong>, \u201cmaking them metallic would enable, for example, quantum dot displays that are brighter yet use less energy than current devices.\u201d<\/p>\n\n\n\n<p>Now, the group has published a study in&nbsp;<em>Nature Communications<\/em>&nbsp;that could make a major contribution to reaching that goal. The group, led by <a href=\"https:\/\/www.sustainable-quantum-nanomaterials-devices.com\/\" target=\"_blank\" rel=\"noreferrer noopener\">Satria Bisri <\/a>and Yoshihiro Iwasa of RIKEN CEMS, has created a superlattice of lead sulfide semiconducting colloidal quantum dots that displays the electrical conducting properties of a metal.<\/p>\n\n\n\n<p>The key to achieving this was to get the individual quantum dots in the lattice to attach to one another directly, \u201cepitaxially,\u201d without ligands, and to do this with their facets oriented in a precise way.<\/p>\n\n\n\n<p>The researchers tested the conductivity of the material they created, and as they increased the carrier density using a electric-double-layer transistor, they found that at a certain point it became one million times more conductive than what is currently available from quantum dot displays. Importantly, the quantum confinement of the individual quantum dots was still maintained, meaning that they don\u2019t lose their functionality despite the high conductivity.<\/p>\n\n\n\n<p>&#8220;Semiconductor quantum dots have always shown promise for their optical properties, but their electronic mobility has been a challenge,&#8221; says Iwasa. &#8220;Our research has demonstrated that precise orientation control of the quantum dots in the assembly can lead to high electronic mobility and metallic behavior. This breakthrough could open up new avenues for using semiconductor quantum dots in emerging technologies.&#8221;<\/p>\n\n\n\n<p>According to Bisri, \u201cWe plan to carry out further studies with this class of materials, and believe it could lead to vast improvements in the capabilities of quantum dot superlattices. In addition to improving current devices, it could lead to new applications such as true all-QD direct electroluminescence devices, electrically driven lasers, thermoelectric devices, and highly sensitive detectors and sensors, which previously were beyond the scope of quantum dot materials.\u201d<\/p>\n\n\n\n<p>The team included researchers from RIKEN, Tokyo Institute of Technology, the University of Tokyo, SPring-8, and the <strong>Tokyo University of Agriculture and Technology.<\/strong><\/p>\n\n\n\n<p>From: <a href=\"https:\/\/www.riken.jp\/en\/news_pubs\/research_news\/pr\/2023\/20230526_4\/index.html\">Forging a dream material with semiconductor quantum dots | RIKEN<\/a><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p><\/p>\n\n\n\n<p class=\"has-white-color has-accent-background-color has-text-color has-background\">Also, featured at:<\/p>\n\n\n\n<p><a href=\"https:\/\/physicsworld.com\/a\/lined-up-quantum-dots-become-highly-conductive\/#:~:text=The%20RIKEN%20researchers%20found%20that%20they%20could%20make,doping%20level%20of%20charge%20carriers%20in%20the%20system.\">Lined-up quantum dots become highly conductive \u2013 Physics World<\/a><\/p>\n\n\n\n<p><a href=\"https:\/\/eetimes.itmedia.co.jp\/ee\/articles\/2306\/01\/news118.html\">\u9ad8\u79fb\u52d5\u5ea6\u306e\u534a\u5c0e\u4f53\u30b3\u30ed\u30a4\u30c9\u91cf\u5b50\u30c9\u30c3\u30c8\u8d85\u683c\u5b50\u3092\u5b9f\u73fe\uff1a\u79fb\u52d5\u5ea6\u306f\u5f93\u6765\u306e1000\uff5e100\u4e07\u500d &#8211; EE Times Japan (itmedia.co.jp)<\/a><\/p>\n\n\n\n<p><a href=\"https:\/\/scitechdaily.com\/metallic-magic-forging-a-dream-material-with-semiconductor-quantum-dots\/\">Metallic Magic: Forging a Dream Material With Semiconductor Quantum Dots (scitechdaily.com)<\/a><\/p>\n\n\n\n<p><a href=\"https:\/\/www.azom.com\/news.aspx?newsID=61359\">Creating a &#8220;Superlattice&#8221; of Semiconductor Quantum Dots With Metallic Behavior (azom.com)<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5f93\u6765\u306e\u5546\u7528\u30b3\u30ed\u30a4\u30c9\u91cf\u5b50\u30c9\u30c3\u30c8\u8584\u819c\u3088\u308a\u30821,000\uff5e100\u4e07\u500d\u4ee5\u4e0a\u3082\u5927\u304d\u306a\u79fb\u52d5\u5ea6\u3092\u793a\u3057\u305f\u3002\u30ad\u30e3\u30ea\u30a2\u30c9\u30fc\u30d7\u306b\u3088\u3063\u3066\u91d1\u5c5e\u7684\u4f1d\u5c0e\u6027\u3092\u793a\u3059\u3053\u3068\u3082\u660e\u3089\u304b\u306b\u306a\u3063\u305f\u3002The films showed mobilities more than 10 million ~ 1 million times greater than conventional commercial colloidal quantum dot films. It was also found to exhibit metallic conductivity by carrier doping.<\/p>\n","protected":false},"author":3,"featured_media":3094,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"advanced_seo_description":"","jetpack_seo_html_title":"","jetpack_seo_noindex":false,"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[9],"tags":[12,14,27],"class_list":["post-3090","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-research","tag-energy-conversion-optimization","tag-advanced-materials-creation","tag-quantum-tech"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"https:\/\/i0.wp.com\/tuat-chemphys.net\/wp-content\/uploads\/2023\/05\/bisri-naturecomm1.png?fit=1270%2C592&ssl=1","jetpack_sharing_enabled":true,"jetpack-related-posts":[{"id":7231,"url":"https:\/\/tuat-chemphys.net\/?p=7231","url_meta":{"origin":3090,"position":0},"title":"\u30d3\u30b9\u30ea\u7814\u306e\u5b66\u751f\u304c\u56fd\u969b\u4f1a\u8b70\u3067\u6210\u679c\u3092\u767a\u8868\u3057\u307e\u3057\u305f\u3002Bisri Lab Students with Seven Poster Presentations at CEMS International Symposium on Supramolecular Chemistry and Functional Materials 2026","author":"unet","date":"2026-02","format":false,"excerpt":"Bisri\u7814\u7a76\u5ba4\u3067\u306f\u3001\u30b3\u30ed\u30a4\u30c9\u91cf\u5b50\u30c9\u30c3\u30c8\u3001\u534a\u5c0e\u4f53\u30ca\u30ce\u7d50\u6676\u3001\u305d\u3057\u3066\u6a5f\u80fd\u6027\u6750\u6599\u3092\u7528\u3044\u305f\u6b21\u4e16\u4ee3 optoelectronics\uff08\u5149\u96fb\u5b50\u30c7\u30d0\u30a4\u30b9\uff09\u7814\u7a76\u3092\u9032\u3081\u3066\u3044\u307e\u3059\u3002","rel":"","context":"In &quot;Event\/News&quot;","block_context":{"text":"Event\/News","link":"https:\/\/tuat-chemphys.net\/?cat=4"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/tuat-chemphys.net\/wp-content\/uploads\/2026\/02\/image.png?fit=933%2C424&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/tuat-chemphys.net\/wp-content\/uploads\/2026\/02\/image.png?fit=933%2C424&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/tuat-chemphys.net\/wp-content\/uploads\/2026\/02\/image.png?fit=933%2C424&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/tuat-chemphys.net\/wp-content\/uploads\/2026\/02\/image.png?fit=933%2C424&ssl=1&resize=700%2C400 2x"},"classes":[]},{"id":7779,"url":"https:\/\/tuat-chemphys.net\/?p=7779","url_meta":{"origin":3090,"position":1},"title":"\u5f53\u5b66\u79d1\u306e\u300c\u91cf\u5b50\u6280\u8853\u300dQuantum technology research at our department","author":"unet","date":"2026-04","format":false,"excerpt":"\u91cf\u5b50\u306e\u4e16\u754c\u306f\u3001\u7269\u7406\u3084\u5316\u5b66\u306e\u300c\u5f53\u305f\u308a\u524d\u300d\u304c\u901a\u3058\u306a\u3044\u4e0d\u601d\u8b70\u306a\u5834\u6240 The \"Quantum-Tech\" tag, highlighting our lineup of researchers pushing the boundaries of what is scientifically possible.","rel":"","context":"In &quot;Lab. 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Intro \u7814\u7a76\u5ba4\u7d39\u4ecb&quot;","block_context":{"text":"Lab. Intro \u7814\u7a76\u5ba4\u7d39\u4ecb","link":"https:\/\/tuat-chemphys.net\/?cat=6"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/tuat-chemphys.net\/wp-content\/uploads\/2025\/07\/image-12.png?fit=386%2C598&ssl=1&resize=350%2C200","width":350,"height":200},"classes":[]},{"id":7535,"url":"https:\/\/tuat-chemphys.net\/?p=7535","url_meta":{"origin":3090,"position":4},"title":"Interview \u76f8\u5bfe\u8ad6\u7684\u91cf\u5b50\u5316\u5b66\u3067\u5b87\u5b99\u3068\u7269\u8cea\u306e\u8b0e\u306b\u6311\u3080 \u2015 \u963f\u90e8\u7a63\u91cc\u5148\u751f &#8220;Unraveling the Mysteries of Matter and the Universe Through Relativistic Quantum Chemistry \u2014 Dr. Minori Abe&#8221;","author":"unet","date":"2026-03","format":false,"excerpt":"\u8a18\u4e8b\u3067\u306f\u7814\u7a76\u306e\u918d\u9190\u5473\u3084\u3001\u80b2\u5150\u3068\u7814\u7a76\u3092\u4e21\u7acb\u3057\u306a\u304c\u3089\u6b69\u3093\u3067\u304d\u305f\u30ad\u30e3\u30ea\u30a2\u306b\u3064\u3044\u3066\u3082\u8a9e\u3063\u3066\u3044\u305f\u3060\u304d\u307e\u3057\u305f The article also offers an candid look at her journey balancing research with motherhood.","rel":"","context":"In &quot;Professor's Interview&quot;","block_context":{"text":"Professor's Interview","link":"https:\/\/tuat-chemphys.net\/?cat=5"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/tuat-chemphys.net\/wp-content\/uploads\/2026\/03\/image-1.png?fit=636%2C765&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/tuat-chemphys.net\/wp-content\/uploads\/2026\/03\/image-1.png?fit=636%2C765&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/tuat-chemphys.net\/wp-content\/uploads\/2026\/03\/image-1.png?fit=636%2C765&ssl=1&resize=525%2C300 1.5x"},"classes":[]},{"id":6688,"url":"https:\/\/tuat-chemphys.net\/?p=6688","url_meta":{"origin":3090,"position":5},"title":"\u539f\u5b50\u30b9\u30d4\u30f3\u306e\u6e2c\u5b9a\uff1a\u30bb\u30b7\u30a6\u30e0\u539f\u5b50\u3078\u306e\u65b0\u305f\u306a\u6d1e\u5bdf Measuring the Atomic Spins: New Insights into Cesium Atoms","author":"unet","date":"2025-09","format":false,"excerpt":"\u5438\u53ce\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0\u624b\u6cd5\u3001\u3053\u306e\u6280\u8853\u306f\u91cf\u5b50\u6280\u8853\u306e\u767a\u5c55\u3068\u5b9f\u7528\u5316\u306b\u91cd\u8981\u306a\u8ca2\u732e\u3092\u3059\u308b\u3053\u3068\u304c\u671f\u5f85\u3055\u308c\u307e\u3059\u3002The absorption monitoring method: This technology is expected to make important contributions to the development and practical application of quantum technologies.","rel":"","context":"In &quot;Research Topics&quot;","block_context":{"text":"Research Topics","link":"https:\/\/tuat-chemphys.net\/?cat=9"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/tuat-chemphys.net\/wp-content\/uploads\/2025\/09\/image-1.png?fit=1117%2C660&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/tuat-chemphys.net\/wp-content\/uploads\/2025\/09\/image-1.png?fit=1117%2C660&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/tuat-chemphys.net\/wp-content\/uploads\/2025\/09\/image-1.png?fit=1117%2C660&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/tuat-chemphys.net\/wp-content\/uploads\/2025\/09\/image-1.png?fit=1117%2C660&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/tuat-chemphys.net\/wp-content\/uploads\/2025\/09\/image-1.png?fit=1117%2C660&ssl=1&resize=1050%2C600 3x"},"classes":[]}],"jetpack_shortlink":"https:\/\/wp.me\/pa3J4g-NQ","jetpack_likes_enabled":true,"_links":{"self":[{"href":"https:\/\/tuat-chemphys.net\/index.php?rest_route=\/wp\/v2\/posts\/3090","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/tuat-chemphys.net\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/tuat-chemphys.net\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/tuat-chemphys.net\/index.php?rest_route=\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/tuat-chemphys.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=3090"}],"version-history":[{"count":1,"href":"https:\/\/tuat-chemphys.net\/index.php?rest_route=\/wp\/v2\/posts\/3090\/revisions"}],"predecessor-version":[{"id":7545,"href":"https:\/\/tuat-chemphys.net\/index.php?rest_route=\/wp\/v2\/posts\/3090\/revisions\/7545"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/tuat-chemphys.net\/index.php?rest_route=\/wp\/v2\/media\/3094"}],"wp:attachment":[{"href":"https:\/\/tuat-chemphys.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=3090"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/tuat-chemphys.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=3090"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/tuat-chemphys.net\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=3090"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}