{"id":27313,"date":"2017-03-21T00:31:25","date_gmt":"2017-03-20T16:31:25","guid":{"rendered":"https:\/\/case.ntu.edu.tw\/blog\/?p=27313"},"modified":"2018-07-29T07:52:07","modified_gmt":"2018-07-28T23:52:07","slug":"%e5%a4%9a%e5%8a%9f%e8%83%bdled%e9%9d%a2%e6%9d%bf","status":"publish","type":"post","link":"https:\/\/case.ntu.edu.tw\/blog\/?p=27313","title":{"rendered":"\u591a\u529f\u80fdLED\u9762\u677f"},"content":{"rendered":"<p><span style=\"color: #333399;\"><strong>\u25a0\u5982\u679c\u624b\u6a5f\u87a2\u5e55\u6bcf\u500b\u50cf\u7d20\u90fd\u80fd\u5075\u6e2c\u5916\u754c\u5149\u6e90\u4e14\u540c\u6642\u767c\u5149\u6709\u4ec0\u9ebc\u597d\u8655\uff1f<\/strong><\/span><\/p>\n<p><strong>\u64b0\u6587\uff5c<\/strong>\u65b9\u7a0b\u6bc5<\/p>\n<p>\u6709\u4e9b\u667a\u6167\u578b\u624b\u6a5f\u5177\u5099\u81ea\u6211\u8abf\u7bc0\u87a2\u5e55\u4eae\u5ea6\u7684\u80fd\u529b\uff0c\u5f9e\u5ba4\u5916\u9032\u5230\u9670\u6697\u7684\u5ba4\u5167\uff0c\u87a2\u5e55\u4eae\u5ea6\u6703\u81ea\u52d5\u8b8a\u6697\u3002\u4f46\u9019\u985e\u81ea\u6211\u8abf\u7bc0\u4eae\u5ea6\u7684\u529f\u80fd\u90fd\u662f\u6574\u7247\u87a2\u5e55\u8abf\u7bc0\uff0c\u5982\u679c\u6709\u500b\u66f4\u8070\u660e\u7684\u87a2\u5e55\uff0c\u7576\u4f60\u7ad9\u5728\u6a39\u852d\u4e0b\uff0c\u6a39\u5f71\u525b\u597d\u906e\u4f4f\u4e00\u534a\u87a2\u5e55\uff0c\u88ab\u906e\u4f4f\u7684\u4e00\u534a\u6703\u81ea\u52d5\u8b8a\u6697\u8b93\u87a2\u5e55\u770b\u8d77\u4f86\u66f4\u5747\u52fb\uff0c\u662f\u4e0d\u662f\u66f4\u65b9\u4fbf\u5462\uff1f<\/p>\n<p>\u5176\u5be6\u9019\u529f\u80fd\u807d\u8d77\u4f86\u6709\u9ede\u591a\u9918\uff0c\u5f80\u65c1\u908a\u7ad9\u4e00\u6b65\u907f\u958b\u6a39\u852d\u5c31\u597d\u4e86\uff0c\u4f46\u8b93\u6bcf\u500b\u50cf\u7d20\u90fd\u80fd\u611f\u5149\u9084\u6709\u66f4\u5ee3\u6cdb\u7684\u61c9\u7528\u3002\u4f8b\u5982\uff1a\u80fd\u611f\u5149\u7684\u5143\u4ef6\u4ee3\u8868\u53ef\u4ee5\u505a\u6210\u592a\u967d\u80fd\u96fb\u6c60\uff0c\u8b93\u87a2\u5e55\u5728\u4f7f\u7528\u7684\u540c\u6642\u6bcf\u500b\u50cf\u7d20\u9084\u80fd\u81ea\u5df1\u5145\u96fb\uff1b\u9664\u6b64\u4e4b\u5916\uff0c\u80fd\u6536\u5149\u53c8\u80fd\u767c\u5149\u4fbf\u5177\u5099\u4e86\u7576\u901a\u8a0a\u5143\u4ef6\u7684\u8981\u7d20\uff0c\u8b93\u87a2\u5e55\u4e4b\u9593\u53ef\u4ee5\u4e92\u76f8\u300c\u6e9d\u901a\u300d\u3002\u4f0a\u5229\u8afe\u5927\u5b78\u9999\u6ab3\u5206\u6821(University of Illinois at Urbana Champaign) \u6750\u6599\u7cfbMoonsub Shim\u6559\u6388\u5be6\u9a57\u5ba4\u6700\u8fd1\u7814\u767c\u51fa\u65b0\u578b\u7684LED\u5143\u4ef6\uff0c\u5728\u767c\u5149\u7684\u540c\u6642\u4e5f\u5177\u5099\u611f\u5149\u80fd\u529b\uff0c\u5176\u7814\u7a76\u7d50\u679c\u520a\u767b\u5728\u300a\u79d1\u5b78\u300b(<em>Science<\/em>) \u671f\u520a\uff0cYoutube\u4e0a\u7684\u5f71\u7247\u7c21\u55ae\u4ecb\u7d39\u4e86\u9019\u9805\u7814\u7a76\u7684\u539f\u7406\u53ca\u61c9\u7528\u3002<!--more--><\/p>\n<p><iframe src=\"https:\/\/www.youtube.com\/embed\/EjAWpsNUSAQ\" width=\"640\" height=\"360\" frameborder=\"0\" allowfullscreen=\"allowfullscreen\"><\/iframe><\/p>\n<p>\u9019\u500b\u5143\u4ef6\u6240\u4f7f\u7528\u7684\u6750\u6599\u70ba\u786b\u5316\u9398(CdS)\u3001\u7852\u5316\u9398(CdSe)\u53ca\u7852\u5316\u92c5(ZnSe)\uff0c\u7d50\u69cb\u985e\u4f3c\u4e00\u6839\u72d7\u9aa8\u982d\uff0c\u5927\u5c0f\u7d043\u5948\u7c73\u3002\u786b\u5316\u9398(CdS)\u5948\u7c73\u67f1\u8ca0\u8cac\u50b3\u5c0e\u96fb\u5b50\uff1b\u7852\u5316\u9398(CdSe)\u53ca\u7852\u5316\u92c5(ZnSe)\u5f62\u6210\u6838\u6bbc\u7d50\u69cb(core-shell)\u8ca0\u8cac\u50b3\u5c0e\u6b63\u96fb\u8377\u3002\u9019\u6a23\u7684\u7d50\u69cb\u5177\u6709\u7279\u6b8a\u7684\u80fd\u5e36(Band Structure)\uff0c\u4f7f\u5176\u80fd\u767c\u5149\u53ca\u6536\u5149\u3002<\/p>\n<p><em>(<\/em><em>\u7528\u6bd4\u8f03\u5b78\u8853\u4e00\u9ede\u7684\u8b1b\u6cd5\uff1a\u4e0d\u540c\u6750\u6599\u7684\u7570\u8cea\u63a5\u9762\uff0c\u5176\u80fd\u5e36\u5982\u4f55\u76f8\u63a5<\/em><em> (Energy band alignment)<\/em><em>\u6c7a\u5b9a\u4e86\u96fb\u5b50\u96fb\u6d1e\u5728\u6750\u6599\u88e1\u7684\u884c\u70ba\u3002\u7852\u5316\u9398<\/em><em> (CdSe)<\/em><em>\u6bbc\u7d50\u69cb\u8207\u5169\u500b\u6750\u6599\u7684\u63a5\u9762\u90fd\u6703\u5f62\u6210\u7684<\/em><em>type I straddling band offset<\/em><em>\u53ef\u4ee5\u56f0\u4f4f\u96fb\u5b50\u96fb\u6d1e\u5c0d\uff0c\u8b93\u4ed6\u5011\u50be\u5411\u7d50\u5408\u4e26\u767c\u5149\uff1b\u786b\u5316\u9398<\/em><em> (CdS)<\/em><em>\u53ca\u7852\u5316\u92c5<\/em><em> (ZnSe)<\/em><em>\u6703\u5f62\u6210<\/em><em>type II staggered band offset<\/em><em>\uff0c\u8b93\u5143\u4ef6\u56e0\u5438\u6536\u5149\u5b50\u7522\u751f\u7684\u96fb\u5b50\u96fb\u6d1e\u5c0d\u50be\u5411\u5206\u96e2\u5f62\u6210\u96fb\u6d41\u3002\u7dad\u57fa\u689d\u76ee\uff1a<\/em><em>Heterojunction<\/em><em>\u88e1\u7684<\/em><em>Energy band alignment<\/em><em>\u6709<\/em><em>band offset<\/em><em>\u7684\u7c21\u6613\u63cf\u8ff0\u3002<\/em><em>)<\/em><\/p>\n<p>\u767c\u5149\u8ddf\u6536\u5149\u662f\u4e92\u65a5\u7684\u884c\u70ba\uff0c\u901a\u5e38\u8981\u767c\u5149\u6703\u5c0d\u5143\u4ef6\u65bd\u6b63\u504f\u58d3\u6ce8\u5165\u96fb\u6d41(\u96fb\u8f49\u5149)\uff1b\u53cd\u4e4b\uff0c\u6536\u5149\u65bd\u8ca0\u504f\u58d3\uff0c\u5143\u4ef6\u63a5\u6536\u5149\u5b50\u5f8c\u96fb\u5b50\u96fb\u6d1e\u5c0d\u5206\u96e2\u5f62\u6210\u96fb\u6d41\u4fbf\u80fd\u5075\u6e2c\u96fb\u8a0a\u865f(\u5149\u8f49\u96fb)\u3002\u4e00\u500b\u5143\u4ef6\u4e0d\u53ef\u80fd\u540c\u6642\u6709\u5169\u500b\u65b9\u5411\u7684\u96fb\u6d41\uff0c\u56e0\u6b64Moonsub Shim\u6559\u6388\u958b\u767c\u7684LED\u662f\u8b93\u504f\u58d3\u4e0d\u65b7\u6b63\u8ca0\u4ea4\u932f\uff0c\u6240\u4ee5\u53ef\u4ee5\u5728\u767c\u5149\u53ca\u6536\u5149\u9593\u5feb\u901f\u8f49\u63db\uff0c\u53ea\u8981\u6b63\u8ca0\u4ea4\u932f\u7684\u983b\u7387\u5927\u65bc\u4eba\u773c\u63a5\u6536\u983b\u7387\uff0c\u5c31\u50cf\u500b\u4e00\u76f4\u767c\u5149\u7684\u7269\u9ad4\u540c\u6642\u4e5f\u5728\u6536\u96c6\u5149\u5b50\u8f49\u63db\u6210\u96fb\u6d41\u3002<\/p>\n<p>\u5f71\u7247\u4e2d\u6b63\u5728\u767c\u5149\u7684\u50cf\u7d20\u5176\u983b\u7387\u90fd\u8d85\u904e\u4eba\u773c\u6975\u9650\uff0c\u56e0\u6b64\u624d\u80fd\u6839\u64da\u5916\u754c\u5149\u7dda\u8b8a\u5316\u76f4\u63a5\u8abf\u6574\u660e\u6697\u3002\u4e5f\u56e0\u6b64\uff0c\u672a\u4f86\u751a\u81f3\u53ef\u80fd\u767c\u5c55\u51fa\u975e\u89f8\u63a7\u5f0f\u87a2\u5e55\uff0c\u624b\u6307\u7d93\u904e\u4fbf\u53ef\u4ee5\u63a7\u5236\u3002<\/p>\n<p>Moonsub Shim\u6559\u6388\u8868\u793a\uff1a\u300c\u9019\u500b\u5143\u4ef6\u9762\u5c0d\u5149\u7522\u751f\u7684\u53cd\u61c9\u8ddf\u592a\u967d\u80fd\u96fb\u6c60\u985e\u4f3c\uff0c\u6240\u4ee5\u4e0d\u50c5\u80fd\u589e\u52a0\u4f7f\u7528\u8005\u53ca\u87a2\u5e55\u7684\u4e92\u52d5\u6027\uff0c\u66f4\u80fd\u540c\u6642\u6536\u96c6\u5916\u754c\u5149\u7167\u3002\u53ef\u4ee5\u60f3\u50cf\u624b\u6a5f\u653e\u5728\u65c1\u908a\u7684\u540c\u6642\u5c31\u81ea\u52d5\u5145\u96fb\uff0c\u5982\u6b64\u4e00\u4f86\u4fbf\u514d\u53bb\u591a\u5b89\u88dd\u592a\u967d\u80fd\u96fb\u6c60\u5728\u624b\u6a5f\u4e0a\u7684\u9ebb\u7169\u3002\u96d6\u7136\u5728\u5be6\u73fe\u9019\u500b\u60f3\u6cd5\u524d\uff0c\u9084\u6709\u8a31\u591a\u554f\u984c\u8981\u514b\u670d\uff0c\u4f46\u6211\u5011\u76f8\u4fe1\u6211\u5011\u80fd\u589e\u52a0\u5176\u6536\u96c6\u80fd\u91cf\u7684\u6548\u7387\u537b\u53c8\u4e0d\u640d\u53caLED\u7684\u8868\u73fe\uff0c\u5982\u6b64\u4e00\u4f86\u624b\u6a5f\u5c31\u53ef\u4ee5\u4f86\u7528\u81ea\u5df1\u7684\u87a2\u5e55\u5145\u96fb\u3002\u300d\u5f71\u7247\u4e2d\u4e00\u500b\u50cf\u7d20\u90fd\u9084\u6709\u6210\u5343\u4e0a\u842c\u7684\u5c0f\u5948\u7c73\u67f1\uff0c\u4e26\u4e0d\u662f\u4e00\u500b\u4e09\u5948\u7c73\u72d7\u9aa8\u982d\u72c0\u7684\u5143\u4ef6\u5c31\u662f\u4e00\u500b\u50cf\u7d20\uff0c\u4e09\u5948\u7c73\u5143\u4ef6\u767c\u51fa\u4f86\u7684\u5149\u592a\u5f31\u4e86\u3002<\/p>\n<p>\u76ee\u524dShim\u6559\u6388\u6307\u7814\u767c\u51fa\u7d05\u8272\u7684LED\uff0c\u4f46\u8981\u505a\u6210\u986f\u793a\u5668\u52e2\u5fc5\u8981\u6709\u4e09\u539f\u8272\uff0c\u9019\u4e5f\u662f\u7814\u7a76\u5718\u968a\u52aa\u529b\u7684\u76ee\u6a19\u3002<\/p>\n<p>&nbsp;<\/p>\n<p><strong>\u539f\u59cb\u8ad6\u6587\uff1a<\/strong>Oh, Nuri, Bong Hoon Kim, Seong-Yong Cho, Sooji Nam, Steven P. Rogers, Yiran Jiang, Joseph C. Flanagan et al. \"Double-heterojunction nanorod light-responsive LEDs for display applications.\"\u00a0<em>Science<\/em>\u00a0355, no. 6325 (2017): 616-619.<\/p>\n<p><strong>\u53c3\u8003\u8cc7\u6599\uff1a<\/strong><\/p>\n<ol>\n<li>Oh, Nuri, Sooji Nam, You Zhai, Kishori Deshpande, Pete Trefonas, and Moonsub Shim. \"Double-heterojunction nanorods.\"<em>Nature communications<\/em>\u00a05 (2014).<\/li>\n<li>UIUC research news:\u00a0<a href=\"https:\/\/news.illinois.edu\/blog\/view\/6367\/461493\" target=\"_blank\" rel=\"noopener noreferrer\">Dual-function nanorod LEDs could make multifunctional displays<\/a><\/li>\n<li><a href=\"https:\/\/en.wikipedia.org\/wiki\/Heterojunction\">wikipedia\uff1aHeterojunction<\/a><\/li>\n<\/ol>\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\u6709\u4e9b\u667a\u6167\u578b\u624b\u6a5f\u5177\u5099\u81ea\u6211\u8abf\u7bc0\u87a2\u5e55\u4eae\u5ea6\u7684\u80fd\u529b\uff0c\u5f9e\u5ba4\u5916\u9032\u5230\u9670\u6697\u7684\u5ba4\u5167\uff0c\u87a2\u5e55\u4eae\u5ea6\u6703\u81ea\u52d5\u8b8a\u6697\u3002\u4f46\u9019\u985e\u81ea\u6211\u8abf\u7bc0\u4eae\u5ea6\u7684\u529f\u80fd\u90fd\u662f\u6574\u7247\u87a2\u5e55\u8abf\u7bc0\uff0c\u5982\u679c\u6709\u500b\u66f4\u8070\u660e\u7684\u87a2\u5e55\uff0c\u7576\u4f60\u7ad9\u5728\u6a39\u852d\u4e0b\uff0c\u6a39\u5f71\u525b\u597d\u906e\u4f4f\u4e00\u534a\u87a2\u5e55\uff0c\u88ab\u906e\u4f4f\u7684\u4e00\u534a\u6703\u81ea\u52d5\u8b8a\u6697\u8b93\u87a2\u5e55\u770b\u8d77\u4f86\u66f4\u5747\u52fb\uff0c\u662f\u4e0d\u662f\u66f4\u65b9\u4fbf\u5462\uff1f<\/p>\n","protected":false},"author":20,"featured_media":27316,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1023,3293],"tags":[1460,3264,1944,1737],"aioseo_notices":[],"jetpack_featured_media_url":"https:\/\/case.ntu.edu.tw\/blog\/wp-content\/uploads\/2017\/03\/100974.jpg","_links":{"self":[{"href":"https:\/\/case.ntu.edu.tw\/blog\/index.php?rest_route=\/wp\/v2\/posts\/27313"}],"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=27313"}],"version-history":[{"count":5,"href":"https:\/\/case.ntu.edu.tw\/blog\/index.php?rest_route=\/wp\/v2\/posts\/27313\/revisions"}],"predecessor-version":[{"id":31693,"href":"https:\/\/case.ntu.edu.tw\/blog\/index.php?rest_route=\/wp\/v2\/posts\/27313\/revisions\/31693"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/case.ntu.edu.tw\/blog\/index.php?rest_route=\/wp\/v2\/media\/27316"}],"wp:attachment":[{"href":"https:\/\/case.ntu.edu.tw\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=27313"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/case.ntu.edu.tw\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=27313"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/case.ntu.edu.tw\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=27313"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}