{"id":29736,"date":"2017-11-07T00:21:21","date_gmt":"2017-11-06T16:21:21","guid":{"rendered":"https:\/\/case.ntu.edu.tw\/blog\/?p=29736"},"modified":"2018-07-29T13:05:24","modified_gmt":"2018-07-29T05:05:24","slug":"%e8%81%9a%e7%84%a6%e9%9b%bb%e5%ad%90%e6%9d%9f%e8%aa%bf%e6%8e%a7%e4%ba%8c%e7%a1%ab%e5%8c%96%e9%89%ac%e8%83%bd%e9%9a%99","status":"publish","type":"post","link":"https:\/\/case.ntu.edu.tw\/blog\/?p=29736","title":{"rendered":"\u805a\u7126\u96fb\u5b50\u675f\u8abf\u63a7\u4e8c\u786b\u5316\u926c\u80fd\u9699"},"content":{"rendered":"<p><span style=\"color: #333399;\"><strong>\u25a0\u79d1\u5b78\u5bb6\u518d\u6b21\u7a81\u7834\u4e86\u4eba\u985e\u5c0d\u4e8c\u7dad\u6750\u6599\u7684\u638c\u63a7\u529b\uff0c\u505a\u51fa 1.81eV \u5230 1.42eV \u4e4b\u9593\u7684\u4e8c\u7dad\u4e8c\u786b\u5316\u926c(MoS<sub>2)<\/sub>\u3002<\/strong><\/span><\/p>\n<figure id=\"attachment_29737\" aria-describedby=\"caption-attachment-29737\" style=\"width: 450px\" class=\"wp-caption alignleft\"><img fetchpriority=\"high\" decoding=\"async\" class=\"wp-image-29737\" src=\"http:\/\/case.ntu.edu.tw\/blog\/wp-content\/uploads\/2017\/10\/Kaustav_Final_illo_JPG.jpg\" alt=\"\" width=\"450\" height=\"312\" \/><figcaption id=\"caption-attachment-29737\" class=\"wp-caption-text\">Photo Credit: PETER ALLEN<\/figcaption><\/figure>\n<p><strong>\u64b0\u6587\uff5c<\/strong>\u65b9\u7a0b\u6bc5<\/p>\n<p>\u5c0d\u6750\u6599\u5b78\u5bb6\u4f86\u8aaa\uff0c\u8abf\u6574\u6750\u6599\u6027\u8cea\u4ee5\u7b26\u5408\u61c9\u7528\u6240\u9700\u662f\u4e00\u91cd\u8981\u4efb\u52d9\uff0c\u5f9e\u5de8\u89c0\u7684\u6a5f\u68b0\u6027\u8cea\u5230\u5fae\u89c0\u7684\u5948\u7c73\u7d50\u69cb\uff0c\u90fd\u662f\u95dc\u6ce8\u7684\u7126\u9ede\u3002\u80fd\u9699(Band gap)\u662f\u6750\u6599\u7684\u8af8\u591a\u91cd\u8981\u6027\u8cea\u4e4b\u4e00\uff0c\u6c7a\u5b9a\u8a72\u6750\u6599\u767c\u5149\u4ee5\u53ca\u5438\u6536\u5149\u5b50\u7684\u80fd\u91cf\u5927\u5c0f\u3002\u901a\u5e38\u4f86\u8aaa\u4e00\u65e6\u6750\u6599\u7d44\u6210\u56fa\u5b9a\uff0c\u5176\u80fd\u9699\u4e5f\u5c31\u56fa\u5b9a\uff0c\u4e0d\u592a\u5177\u6709\u8abf\u63a7\u7684\u9918\u5730\u3002\u6211\u5011\u66fe\u5728\uff1c<a href=\"http:\/\/case.ntu.edu.tw\/blog\/?p=28513\" target=\"_blank\" rel=\"noopener noreferrer\">\u4e09\u4e94\u65cf\u534a\u5c0e\u9ad4\u662f\u4ec0\u9ebc\uff1f<\/a>\uff1e\u4e00\u6587\u4e2d\u89e3\u91cb\u5de5\u7a0b\u5e2b\u5982\u4f55\u85c9\u7531\u8abf\u63a7\u5316\u5408\u7269\u7d44\u6210\u539f\u5b50\u7684\u6bd4\u4f8b\u4ee5\u6eff\u8db3\u4e0d\u540c\u5149\u5b78\u9700\u6c42\u3002<\/p>\n<p>\u4e09\u4e94\u65cf\u6750\u6599\u7684\u7d44\u6210\u539f\u5b50\u5f88\u591a\uff0c\u8abf\u63a7\u7684\u81ea\u7531\u5ea6\u5f88\u5927\uff0c\u4f46\u4e26\u4e0d\u662f\u6240\u6709\u7269\u8cea\u7686\u662f\u5982\u6b64\u3002\u9762\u5c0d\u4e8c\u786b\u5316\u926c(MoS<sub>2<\/sub>)\u9019\u7a2e\u539f\u5b50\u6bd4\u4f8b\u56fa\u5b9a\u7684\u5316\u5408\u7269\u53c8\u8981\u600e\u9ebc\u8fa6\u5462\uff1f<!--more--><\/p>\n<p>\u4e8c\u786b\u5316\u926c\u662f\u4e8c\u7dad\u6750\u6599\uff0c\u8ddf\u77f3\u58a8\u70ef\u985e\u4f3c\uff0c\u53ea\u6709\u8584\u8584\u5e7e\u5c64\u539f\u5b50\uff0c\u6839\u64da\u7d44\u6210\u7684\u5c64\u6578\u53ca\u7d50\u69cb\u4e0d\u540c\uff0c\u6703\u7522\u751f\u4e0d\u540c\u6027\u8cea\u3002\u5176\u4e2d\uff0c1T \u7d50\u69cb\u70ba\u91d1\u5c6c\u6027\uff0c2H \u7d50\u69cb\u70ba\u534a\u5c0e\u9ad4(\u81f3\u65bc 1T\u30012H \u5be6\u969b\u4e0a\u662f\u4ec0\u9ebc\u7d50\u69cb\u672c\u6587\u4e0d\u591a\u505a\u89e3\u91cb)\u30021T \u7d50\u69cb\u4e26\u7121\u80fd\u9699\uff0c\u80fd\u5e36\u5716\u5982\u540c\u91d1\u5c6c\u4e00\u822c\uff1b2H \u7d50\u69cb\u50cf\u534a\u5c0e\u9ad4\u4e00\u6a23\u5177\u6709\u80fd\u9699\u3001\u5c0e\u5e36(Conduction band)\u53ca\u50f9\u5e36(Valence Band)\uff0c\u5176\u80fd\u9699\u70ba 1.81eV\u3002 1T \u53ca 2H \u5169\u8005\u5dee\u7570\u5728\u65bc\u539f\u5b50\u6392\u5217\u7684\u65b9\u5f0f\u4e0d\u540c\uff0c\u96d6\u7136\u4ed6\u5011\u90fd\u662f\u4e8c\u786b\u5316\u926c\uff0c\u4f46\u6709\u4e0d\u540c\u6027\u8cea\uff0c\u985e\u4f3c\u7684\u73fe\u8c61\u6211\u5011\u66fe\u5728\uff1c<a href=\"http:\/\/case.ntu.edu.tw\/blog\/?p=27860\" target=\"_blank\" rel=\"noopener noreferrer\">\u80fd\u9699\u53ea\u670930 meV\u7684\u77fd\uff0c\u662f\u534a\u5c0e\u9ad4\u9084\u662f\u91d1\u5c6c\uff1f<\/a>\uff1e\u63d0\u53ca\u3002<\/p>\n<p>\u4f46\u5373\u4fbf\u5982\u6b64\uff0c1T \u8ddf 2H \u5169\u7a2e\u7d50\u69cb\u4e5f\u53ea\u6709\u5169\u7a2e\u6027\u8cea\uff0c\u8ac7\u4f55\u8abf\u63a7\uff1f<\/p>\n<p>\u52a0\u5dde\u5927\u5b78\u8056\u5854\u82ad\u82ad\u62c9\u5206\u6821(University of California - Santa Barbara) \u96fb\u6a5f\u7cfb(Department of Electrical and Computer Engineering) Kaustav Banerjee \u6559\u6388\u7814\u767c\u51fa\u4e00\u7a2e\u7cbe\u6e96\u8abf\u63a7\u4e8c\u786b\u5316\u926c\u80fd\u9699\u7684\u65b9\u6cd5\u3002\u4ed6\u5011\u4ee5\u5177\u534a\u5c0e\u9ad4\u7684 2H \u7d50\u69cb\u4f5c\u70ba\u57fa\u5e95\uff0c\u5728 2H \u7d50\u69cb\u4e0a\u88fd\u4f5c\u505a\u51fa\u5177\u6709\u9031\u671f\u6027\u7684\u5948\u7c73 1T \u7d50\u69cb\uff0c\u9019\u4e9b\u6c92\u6709\u80fd\u9699\u7684 1T \u7d50\u69cb\u898f\u5f8b\u7684\u6563\u4f48\u5728 2H \u57fa\u5e95\u4e0a\u5c31\u50cf\u4e00\u500b\u500b\u4f4d\u80fd\u4e95(Quantum well)\u3002\u85c9\u7531\u63a7\u5236 1T \u5728 2H \u4e2d\u7684\u5206\u5e03\u53ca\u5927\u5c0f\uff0c\u4fbf\u53ef\u4ee5\u505a\u51fa\u80fd\u9699\u5728 1.81eV \u5230 1.42eV \u4e4b\u9593\u7684\u4e8c\u7dad\u4e8c\u786b\u5316\u926c\u3002\u9019\u9805\u7814\u7a76\u6210\u679c\u88ab\u767c\u8868\u65bc <em>Scientific Reports<\/em><em>\u3002<\/em><\/p>\n<p>\u9019\u4e9b 1T \u7d50\u69cb\u5011\u662f\u5229\u7528\u805a\u7126\u96fb\u5b50\u675f(focused electron beam) \u6253\u5728 2H \u7d50\u69cb\u4e0a\u5f62\u6210\uff0c\u73fe\u884c\u6280\u8853\u53ef\u4ee5\u7cbe\u6e96\u63a7\u5236\u805a\u7126\u96fb\u5b50\u675f\u7684\u4f4d\u7f6e\uff0c\u8b93 1T \u7d50\u69cb\u4e4b\u9593\u7684\u9593\u8ddd\u53ea\u6709\u6578\u5948\u7c73\uff0c\u4e26\u5177\u6709\u9031\u671f\u6027\uff0c\u800c\u975e\u6563\u4e82\u6392\u5217\uff0c\u4ee5\u78ba\u4fdd\u80fd\u9699\u5927\u5c0f\u3002\u9019\u662f\u79d1\u5b78\u5bb6\u9996\u6b21\u5728\u4e8c\u7dad\u6750\u6599\u4e0a\u505a\u51fa\u5982\u6b64\u7cbe\u6e96\u4e14\u5177\u898f\u6a21\u7684\u5948\u7c73\u7d50\u69cb\uff0c\u6bcf\u4e00\u500b1T\u7d50\u69cb\u5c31\u50cf\u500b\u91cf\u5b50\u9ede(Quantum dot)<\/p>\n<p>\u8ad6\u6587\u4f5c\u8005 Xuejun Xie \u8868\u793a\uff1a\u300c\u6211\u5011\u7684\u65b9\u6cd5\u514b\u670d\u4e86\u4ee5\u5f80\u88fd\u4f5c\u9019\u985e\u7d50\u69cb\u7684\u96a8\u6a5f\u6027\u53ca\u6e96\u78ba\u5ea6\uff0c\u6211\u5011\u7cbe\u6e96\u7684\u8abf\u63a7\u4e86\u6750\u6599\u7684\u80fd\u9699\u4ee5\u7b26\u5408\u61c9\u7528\u9762\u7684\u9700\u6c42\u3002\u300d\u300c\u9019\u662f\u500b\u65b0\u7684\u88fd\u4f5c\u6750\u6599\u65b9\u5f0f(\u5229\u7528\u805a\u7126\u96fb\u5b50\u675f\u8b93\u4e8c\u7dad\u6750\u6599\u7522\u751f\u76f8\u8b8a\u5316)\uff0c\u5176\u61c9\u7528\u9762\u975e\u5e38\u5ee3\uff0c\u5305\u62ec\u91cf\u5b50\u8a08\u7b97\u53ca\u901a\u8a0a(quantum computing and communication)\u3002\u9019\u4e9b\u7d50\u69cb\u4e92\u76f8\u4e4b\u9593\u8ddd\u96e2\u975e\u5e38\u5c0f\uff0c\u56e0\u6b64\u96fb\u5b50\u4e4b\u9593\u6703\u4e92\u76f8\u5f71\u97ff\uff0c\u9019\u662f\u5be6\u73fe\u91cf\u5b50\u8a08\u7b97\u7684\u91cd\u8981\u95dc\u9375\u3002\u300d<\/p>\n<p>Banerjee \u6559\u6388\u8aaa\uff1a\u300c\u805a\u7126\u96fb\u5b50\u675f\u7684\u5927\u5c0f\u53ef\u4ee5\u6c7a\u5b9a\u91cf\u5b50\u9ede\u7684\u5927\u5c0f\uff0c\u4e00\u65e6\u80fd\u505a\u5230\u9019\u9ede\uff0c\u4fbf\u53ef\u4ee5\u63a7\u5236\u4e8c\u7dad\u6750\u6599\u7684\u80fd\u9699\u3002\u4f60\u8aaa\u4f60\u8981\u80fd\u9699 1.5eV \u6211\u5c31\u7d66 \u4f601.5eV\uff1b\u4f60\u8981 1.6eV \u6211\u4e00\u6a23\u53ef\u4ee5\u7d66\u4f60\u3002\u300d<\/p>\n<p>&nbsp;<\/p>\n<p><strong>\u539f\u59cb\u8ad6\u6587\uff1a<\/strong>Xie, Xuejun, Jiahao Kang, Wei Cao, Jae Hwan Chu, Yongji Gong, Pulickel M. Ajayan, and Kaustav Banerjee. \"Designing artificial 2D crystals with site and size controlled quantum dots.\"\u00a0<em>Scientific Reports<\/em>\u00a07 (2017).<\/p>\n<p><strong>\u53c3\u8003\u8cc7\u6599\uff1a<\/strong><a href=\"http:\/\/www.news.ucsb.edu\/2017\/018335\/band-gaps-made-order\" target=\"_blank\" rel=\"noopener noreferrer\">Band Gaps, Made to Order<\/a><\/p>\n<p><span style=\"color: #333399;\"><strong>--<\/strong><\/span><br \/>\n<span style=\"color: #333399;\"><strong>\u4f5c\u8005\uff1a\u65b9\u7a0b\u6bc5 \u79d1\u6559\u4e2d\u5fc3\u7279\u7d04\u5beb\u624b\uff0c\u5f9e\u4e8b\u79d1\u666e\u6587\u7ae0\u5beb\u4f5c\u3002<\/strong><\/span><\/p>\n<p>&nbsp;<\/p>\n<p><a href=\"https:\/\/line.me\/R\/ti\/p\/%40fcx6182w\" target=\"_blank\" rel=\"noopener noreferrer\"><img decoding=\"async\" class=\"alignnone\" src=\"https:\/\/scdn.line-apps.com\/n\/line_add_friends\/btn\/zh-Hant.png\" alt=\"\u52a0\u5165\u597d\u53cb\" width=\"212\" height=\"36\" border=\"0\"><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u25a0\u79d1\u5b78\u5bb6\u518d\u6b21\u7a81\u7834\u4e86\u4eba\u985e\u5c0d\u4e8c\u7dad\u6750\u6599\u7684\u638c\u63a7\u529b\uff0c\u505a\u51fa 1.81eV \u5230 1.42eV \u4e4b\u9593\u7684\u4e8c\u7dad\u4e8c\u786b\u5316\u926c(MoS2)\u3002\u4ed6\u5011\u4ee5\u5177\u534a\u5c0e\u9ad4\u7684 2H \u7d50\u69cb\u4f5c\u70ba\u57fa\u5e95\uff0c\u5728 2H \u7d50\u69cb\u4e0a\u88fd\u4f5c\u505a\u51fa\u5177\u6709\u9031\u671f\u6027\u7684\u5948\u7c73 1T \u7d50\u69cb\uff0c\u9019\u4e9b\u6c92\u6709\u80fd\u9699\u7684 1T \u7d50\u69cb\u898f\u5f8b\u7684\u6563\u4f48\u5728 2H \u57fa\u5e95\u4e0a\u5c31\u50cf\u4e00\u500b\u500b\u4f4d\u80fd\u4e95(Quantum well)\u3002\u85c9\u7531\u63a7\u5236 1T \u5728 2H \u4e2d\u7684\u5206\u5e03\u53ca\u5927\u5c0f\uff0c\u4fbf\u53ef\u4ee5\u505a\u51fa\u80fd\u9699\u5728 1.81eV \u5230 1.42eV \u4e4b\u9593\u7684\u4e8c\u7dad\u4e8c\u786b\u5316\u926c\u3002<\/p>\n","protected":false},"author":20,"featured_media":29737,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1023,3293],"tags":[1232,1835,1838],"aioseo_notices":[],"jetpack_featured_media_url":"https:\/\/case.ntu.edu.tw\/blog\/wp-content\/uploads\/2017\/10\/Kaustav_Final_illo_JPG.jpg","_links":{"self":[{"href":"https:\/\/case.ntu.edu.tw\/blog\/index.php?rest_route=\/wp\/v2\/posts\/29736"}],"collection":[{"href":"https:\/\/case.ntu.edu.tw\/blog\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/case.ntu.edu.tw\/blog\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/case.ntu.edu.tw\/blog\/index.php?rest_route=\/wp\/v2\/users\/20"}],"replies":[{"embeddable":true,"href":"https:\/\/case.ntu.edu.tw\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=29736"}],"version-history":[{"count":2,"href":"https:\/\/case.ntu.edu.tw\/blog\/index.php?rest_route=\/wp\/v2\/posts\/29736\/revisions"}],"predecessor-version":[{"id":31897,"href":"https:\/\/case.ntu.edu.tw\/blog\/index.php?rest_route=\/wp\/v2\/posts\/29736\/revisions\/31897"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/case.ntu.edu.tw\/blog\/index.php?rest_route=\/wp\/v2\/media\/29737"}],"wp:attachment":[{"href":"https:\/\/case.ntu.edu.tw\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=29736"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/case.ntu.edu.tw\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=29736"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/case.ntu.edu.tw\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=29736"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}