LED<\/font><\/a>\uff09\u53d1\u5149\u539f\u7406\uff0c\u76f8\u5bf9\u4e8e\u4f20\u7edf\u7684\u6c5e\u706f\u62e5\u6709\u8bf8\u591a\u7684\u4f18\u70b9\u3002\u5176\u4e2d\u6700\u4e3a\u91cd\u8981\u4f18\u52bf\u7684\u5728\u4e8e\u5176\u4e0d\u542b\u6709\u6bd2\u6c5e\u5143\u7d20\u3002\u968f\u7740\u300a\u6c34\u4fe3\u516c\u7ea6\u300b\u7684\u5b9e\u65bd\uff0c\u6807\u5fd7\u77402020\u5e74\u95f4\u5c06\u5168\u9762\u7981\u6b62\u542b\u6709\u6c5e\u5143\u7d20\u7d2b\u5916\u706f\u7684\u4f7f\u7528\uff0c\u56e0\u6b64\u5982\u4f55\u624d\u80fd\u5f00\u53d1\u51fa\u4e00\u79cd\u5168\u65b0\u7684\u73af\u4fdd\u3001\u9ad8\u6548\u7d2b\u5916\u5149\u6e90\uff0c\u6210\u4e3a\u4e86\u6446\u5728\u4eba\u4eec\u9762\u524d\u7684\u4e00\u9879\u91cd\u8981\u6311\u6218\u3002<\/p>\n\u800c\u57fa\u4e8e\u5bbd\u7981\u5e26\u534a\u5bfc\u4f53\u6750\u6599\uff08GaN\uff0cAlGaN\uff09\u7684\u6df1\u7d2b\u5916\u53d1\u5149\u4e8c\u6781\u7ba1\uff08deep ultraviolet LED: DUV LED\uff09\u6210\u4e3a\u4e86\u8fd9\u4e00\u65b0\u5e94\u7528\u7684\u4e0d\u4e8c\u9009\u62e9\u3002\u8fd9\u4e00\u5168\u56fa\u6001\u5149\u6e90\u4f53\u7cfb\u4f53\u79ef\u5c0f\u3001\u6548\u7387\u9ad8\uff0c\u5bff\u547d\u957f\uff0c\u4ec5\u4ec5\u662f\u62c7\u6307\u76d6\u5927\u5c0f\u7684\u82af\u7247\uff0c\u5c31\u53ef\u4ee5\u53d1\u51fa\u6bd4\u6c5e\u706f\u8fd8\u8981\u5f3a\u7684\u7d2b\u5916\u5149\u3002\u8fd9\u5176\u4e2d\u7684\u5965\u79d8\u4e3b\u8981\u53d6\u51b3\u4e8eIII\u65cf\u6c2e\u5316\u7269\u8fd9\u4e00\u79cd\u76f4\u63a5\u5e26\u9699\u534a\u5bfc\u4f53\u6750\u6599\uff1a\u5bfc\u5e26\u4e0a\u7684\u7535\u5b50\u4e0e\u4ef7\u5e26\u4e0a\u7684\u7a7a\u7a74\u590d\u5408\uff0c\u4ece\u800c\u4ea7\u751f\u5149\u5b50\u3002\u800c\u5149\u5b50\u7684\u80fd\u91cf\u5219\u53d6\u51b3\u4e8e\u6750\u6599\u7684\u7981\u5e26\u5bbd\u5ea6\uff0c\u79d1\u5b66\u5bb6\u4eec\u5219\u53ef\u4ee5\u901a\u8fc7\u8c03\u8282AlGaN\u8fd9\u79cd\u4e09\u5143\u5316\u5408\u7269\u4e2d\u7684\u5143\u7d20\u7ec4\u5206\uff0c\u7cbe\u5bc6\u5730\u5b9e\u73b0\u4e0d\u540c\u6ce2\u957f\u7684\u53d1\u5149\u3002\u7136\u800c\uff0c\u8981\u60f3\u5b9e\u73b0\u7d2b\u5916LED\u7684\u9ad8\u6548\u53d1\u5149\u5e76\u4e0d\u603b\u662f\u90a3\u4e48\u5bb9\u6613\u3002\u7814\u7a76\u8005\u4eec\u53d1\u73b0\uff0c\u5f53\u7535\u5b50\u548c\u7a7a\u7a74\u590d\u5408\u65f6\uff0c\u5e76\u4e0d\u603b\u662f\u4e00\u5b9a\u4ea7\u751f\u5149\u5b50\uff0c\u8fd9\u4e00\u6548\u7387\u88ab\u79f0\u4e4b\u4e3a\u5185\u91cf\u5b50\u6548\u7387(internal quantum efficiency: IQE)\u3002<\/p>\n
<\/p>\n
\u4e2d\u56fd\u79d1\u5b66\u6280\u672f\u5927\u5b66\u5fae\u7535\u5b50\u5b66\u9662\u5b59\u6d77\u5b9a\u548c\u9f99\u4e16\u5175\u8bfe\u9898\u7ec4\u548c\u4e2d\u56fd\u79d1\u5b66\u9662\u5b81\u6ce2\u6750\u6599\u6240\u90ed\u709c\u548c\u53f6\u7ee7\u6625\u8bfe\u9898\u7ec4\u53d1\u73b0\uff0c\u4e3a\u4e86\u63d0\u5347\u7d2b\u5916LED\u7684IQE\u6570\u503c\uff0c\u53ef\u4ee5\u901a\u8fc7AlGaN\u6750\u6599\u751f\u957f\u7684\u886c\u5e95–\u84dd\u5b9d\u77f3\uff0c\u4e5f\u5c31\u662fAl2O3\u7684\u659c\u5207\u89d2\u8c03\u63a7\u6765\u5b9e\u73b0\uff0c\u7814\u7a76\u4eba\u5458\u53d1\u73b0\uff0c\u5f53\u63d0\u9ad8\u886c\u5e95\u7684\u659c\u5207\u89d2\u65f6\uff0c\u7d2b\u5916LED\u5185\u90e8\u7684\u4f4d\u9519\u5f97\u5230\u660e\u663e\u6291\u5236\uff0c\u5668\u4ef6\u53d1\u5149\u5f3a\u5ea6\u660e\u663e\u63d0\u9ad8\u3002\u5f53\u659c\u5207\u89d2\u886c\u5e95\u8fbe\u52304\u5ea6\u65f6\uff0c\u5668\u4ef6\u8367\u5149\u5149\u8c31\u7684\u5f3a\u5ea6\u63d0\u5347\u4e86\u4e00\u4e2a\u6570\u91cf\u7ea7\uff0c\u800c\u5185\u91cf\u5b50\u6548\u7387\u4e5f\u8fbe\u5230\u4e86\u7834\u7eaa\u5f55\u768490%\u4ee5\u4e0a\u3002<\/p>\n
\u4e0e\u4f20\u7edf\u7d2b\u5916LED\u7ed3\u6784\u4e0d\u540c\u7684\u662f\uff0c\u8fd9\u4e00\u79cd\u65b0\u578b\u7ed3\u6784\u5185\u90e8\u7684\u53d1\u5149\u5c42–\u5373\u591a\u5c42\u91cf\u5b50\u9631\uff08MQW\uff09\u5185\u52bf\u9631\u548c\u52bf\u5792\u7684\u539a\u5ea6\u5e76\u4e0d\u662f\u5747\u5300\u7684\u3002\u501f\u52a9\u4e8e\u9ad8\u5206\u8fa8\u900f\u5c04\u7535\u5b50\u663e\u5fae\u955c\uff0c\u7814\u7a76\u4eba\u5458\u5f97\u4ee5\u5728\u5fae\u89c2\u5c3a\u5ea6\u5206\u6790\u4ec5\u4ec5\u53ea\u6709\u51e0\u7eb3\u7c73\u7684\u91cf\u5b50\u9631\u7ed3\u6784\u3002\u7814\u7a76\u8868\u660e\uff0c\u5728\u886c\u5e95\u7684\u53f0\u9636\u5904\uff0c\u9553\uff08Ga\uff09\u539f\u5b50\u4f1a\u51fa\u73b0\u805a\u96c6\u73b0\u8c61\uff0c\u8fd9\u5bfc\u81f4\u4e86\u5c40\u90e8\u7684\u80fd\u5e26\u53d8\u7a84\uff0c\u5e76\u4e14\u968f\u7740\u8584\u819c\u7684\u751f\u957f\uff0c\u5bccGa\u548c\u5bccAl\u7684\u533a\u57df\u4f1a\u4e00\u76f4\u5ef6\u4f38\u81f3DUV LED\u7684\u8868\u9762\uff0c\u5e76\u4e14\u5728\u4e09\u7ef4\u7a7a\u95f4\u5185\u51fa\u73b0\u626d\u66f2\u3001\u5f2f\u6298\uff0c\u5f62\u6210\u4e09\u7ef4\u7684\u591a\u91cf\u5b50\u9631\u7ed3\u6784\u3002<\/p>\n
\u7814\u7a76\u8005\u4eec\u79f0\u8fd9\u4e00\u7279\u6b8a\u7684\u73b0\u8c61\u4e3a\uff1aAl\uff0cGa\u5143\u7d20\u7684\u76f8\u5206\u79bb\u548c\u8f7d\u6d41\u5b50\u5c40\u57df\u5316\u73b0\u8c61\u3002\u503c\u5f97\u6307\u51fa\u7684\u662f\uff0c\u5728\u94df\u9553\u6c2e\uff08InGaN\uff09\u57fa\u7684\u84dd\u5149LED\u4f53\u7cfb\u4e2d\uff0cIn\u7531\u4e8e\u548cGa\u5e76\u4e0d100%\u4e92\u6eb6\uff0c\u5bfc\u81f4\u6750\u6599\u5185\u90e8\u51fa\u73b0\u5bccIn\u548c\u5bccGa\u7684\u533a\u57df\uff0c\u4ece\u800c\u4ea7\u751f\u5c40\u57df\u6001\uff0c\u4fc3\u8fdb\u7684\u8f7d\u6d41\u5b50\u7684\u8f90\u5c04\u590d\u5408\u3002\u4f46\u5728AlGaN\u6750\u6599\u4f53\u7cfb\u4e2d\uff0cAl\u548cGa\u7684\u76f8\u5206\u79bb\u5374\u5f88\u5c11\u89c1\u5230\u3002\u800c\u6b64\u5de5\u4f5c\u7684\u91cd\u8981\u610f\u4e49\u4e4b\u4e00\u5c31\u5728\u4e8e\u4eba\u4e3a\u8c03\u8282\u6750\u6599\u7684\u751f\u957f\u6a21\u5f0f\uff0c\u4fc3\u8fdb\u76f8\u5206\u79bb\uff0c\u5e76\u56e0\u6b64\u5927\u5927\u6539\u5584\u4e86\u5668\u4ef6\u7684\u53d1\u5149\u7279\u6027\u3002<\/p>\n
\u901a\u8fc7\u57284\u5ea6\u659c\u5207\u89d2\u886c\u5e95\u4e0a\u4f18\u5316\u5916\u5ef6\u751f\u957f\u8c03\u8282\uff0c\u7814\u7a76\u4eba\u5458\u6478\u7d22\u5230\u4e86\u4e00\u79cd\u6700\u4f73\u7684DUV LED\u7ed3\u6784\u3002\u8be5\u7ed3\u6784\u7684\u8f7d\u6d41\u5b50\u5bff\u547d\u8d85\u8fc7\u4e861.60 ns\uff0c\u800c\u4f20\u7edf\u5668\u4ef6\u4e2d\u8fd9\u4e00\u6570\u503c\u4e00\u822c\u90fd\u4f4e\u4e8e1ns\u3002\u8fdb\u4e00\u6b65\u6d4b\u8bd5\u82af\u7247\u7684\u53d1\u5149\u529f\u7387\uff0c\u79d1\u7814\u4eba\u5458\u53d1\u73b0\u5176\u7d2b\u5916\u53d1\u5149\u529f\u7387\u6bd4\u4f20\u7edf\u57fa\u4e8e0.2\u5ea6\u659c\u5207\u89d2\u886c\u5e95\u7684\u5668\u4ef6\u5f3a2\u500d\u4e4b\u591a\u3002\u8fd9\u66f4\u52a0\u786e\u4fe1\u65e0\u7591\u5730\u8bc1\u660e\u4e86\uff0cAlGaN\u6750\u6599\u53ef\u4ee5\u5b9e\u73b0\u6709\u6548\u7684\u76f8\u5206\u79bb\u548c\u8f7d\u6d41\u5b50\u5c40\u57df\u5316\u73b0\u8c61\u3002\u9664\u6b64\u4e4b\u5916\uff0c\u5b9e\u9a8c\u4eba\u5458\u8fd8\u901a\u8fc7\u7406\u8bba\u8ba1\u7b97\u6a21\u62df\u4e86AlGaN \u591a\u91cf\u5b50\u9631\u5185\u90e8\u7684\u76f8\u5206\u79bb\u73b0\u8c61\u4ee5\u53ca\u52bf\u9631\u3001\u52bf\u5792\u539a\u5ea6\u4e0d\u5747\u4e00\u6027\u5bf9\u53d1\u5149\u5f3a\u5ea6\u548c\u6ce2\u957f\u7684\u5f71\u54cd\uff0c\u7406\u8bba\u8ba1\u7b97\u4e0e\u5b9e\u9a8c\u5b9e\u73b0\u4e86\u5341\u5206\u543b\u5408\u3002\u8be5\u7814\u7a76\u6210\u679c\u540c\u65f6\u5f97\u5230\u4e86\u534e\u4e2d\u79d1\u6280\u5927\u5b66\u6234\u6c5f\u5357\u548c\u9648\u957f\u6e05\u6559\u6388\uff0c\u6cb3\u5317\u5de5\u4e1a\u5927\u5b66\u5f20\u7d2b\u8f89\u6559\u6388\uff0c\u6c99\u7279\u963f\u535c\u675c\u62c9\u56fd\u738b\u79d1\u6280\u5927\u5b66Boon Ooi\u548cIman Roqan\u6559\u6388\u7b49\u8054\u5408\u653b\u5173\u5b8c\u6210\u3002\u7814\u7a76\u8005\u76f8\u4fe1\uff0c\u6b64\u9879\u7814\u7a76\u5c06\u4f1a\u4e3a\u9ad8\u6548\u7387\u7684\u5168\u56fa\u6001\u7d2b\u5916\u5149\u6e90\u7684\u7814\u53d1\u63d0\u4f9b\u65b0\u7684\u601d\u8def\u3002\u8fd9\u79cd\u601d\u8def\u65e0\u9700\u6602\u8d35\u7684\u56fe\u5f62\u5316\u886c\u5e95\uff0c\u4e5f\u4e0d\u9700\u8981\u590d\u6742\u7684\u5916\u5ef6\u751f\u957f\u5de5\u827a\u3002\u800c\u4ec5\u4ec5\u4f9d\u9760\u886c\u5e95\u7684\u659c\u5207\u89d2\u7684\u8c03\u63a7\u548c\u5916\u5ef6\u751f\u957f\u53c2\u6570\u7684\u5339\u914d\u548c\u4f18\u5316\uff0c\u5c31\u6709\u671b\u5c06\u7d2b\u5916LED\u7684\u53d1\u5149\u7279\u6027\u63d0\u9ad8\u5230\u4e0e\u84dd\u5149LED\u76f8\u5ab2\u7f8e\u7684\u9ad8\u5ea6\uff0c\u4e3a\u9ad8\u529f\u7387\u6df1\u7d2b\u5916LED\u7684\u5927\u89c4\u6a21\u5e94\u7528\u5960\u5b9a\u5b9e\u9a8c\u548c\u7406\u8bba\u57fa\u7840\u3002\u76f8\u5173\u7ed3\u679c\u4ee5“Unambiguously Enhanced Ultraviolet Luminescence of AlGaN Wavy Quantum Well Structures Grown on Large Misoriented Sapphire Substrate”\u4e3a\u9898\uff0c\u5728\u7ebf\u53d1\u8868\u5728Advanced Functional Materials\u4e0a\uff08DOI: 10.1002\/adfm.201905445\uff09\u3002\uff08\u6765\u6e90\uff1aMaterialsViews\uff09<\/p>\n
\u66f4\u591aLED\u76f8\u5173\u8d44\u8baf\uff0c\u8bf7\u70b9\u51fbLED\u7f51\u6216\u5173\u6ce8\u5fae\u4fe1\u516c\u4f17\u8d26\u53f7\uff08cnledw2013\uff09\u3002<\/strong><\/span><\/p>\n","protected":false},"excerpt":{"rendered":"\u7d2b\u5916\u7ebf\u867d\u7136\u5728\u592a\u9633\u5149\u4e2d\u80fd\u91cf\u5360\u6bd4\u4ec55%\uff0c\u4f46\u5374\u5e7f\u6cdb\u5e94\u7528\u4e8e\u4eba\u7c7b\u751f\u6d3b\u3002\u76ee\u524d\u7d2b\u5916\u5149\u5e94\u7528\u5305\u62ec\u5370\u5237\u56fa\u5316\u3001\u94b1\u5e01\u9632\u4f2a\u3001\u76ae\u80a4\u75c5\u6cbb\u7597\u3001 […]<\/p>\n","protected":false},"author":105,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[39],"tags":[],"_links":{"self":[{"href":"https:\/\/www.cnledw.com\/wp-json\/wp\/v2\/posts\/53988"}],"collection":[{"href":"https:\/\/www.cnledw.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.cnledw.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.cnledw.com\/wp-json\/wp\/v2\/users\/105"}],"replies":[{"embeddable":true,"href":"https:\/\/www.cnledw.com\/wp-json\/wp\/v2\/comments?post=53988"}],"version-history":[{"count":0,"href":"https:\/\/www.cnledw.com\/wp-json\/wp\/v2\/posts\/53988\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.cnledw.com\/wp-json\/wp\/v2\/media?parent=53988"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.cnledw.com\/wp-json\/wp\/v2\/categories?post=53988"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.cnledw.com\/wp-json\/wp\/v2\/tags?post=53988"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}