{"id":224971,"date":"2021-07-23T08:21:04","date_gmt":"2021-07-23T00:21:04","guid":{"rendered":"\/\/m.iemloyee.com\/?p=224971"},"modified":"2021-07-23T08:21:04","modified_gmt":"2021-07-23T00:21:04","slug":"%e5%8a%a0%e5%b7%9e%e5%a4%a7%e5%ad%a6%e6%9c%80%e6%96%b0science%ef%bc%9a%e6%8a%91%e5%88%b6%e5%8d%95%e5%b1%82%e5%8d%8a%e5%af%bc%e4%bd%93%e4%b8%ad%e6%89%80%e6%9c%89%e6%bf%80%e5%ad%90%e5%af%86%e5%ba%a6","status":"publish","type":"post","link":"\/\/m.iemloyee.com\/?p=224971","title":{"rendered":"\u52a0\u5dde\u5927\u5b66\u6700\u65b0Science\uff1a\u6291\u5236\u5355\u5c42\u534a\u5bfc\u4f53\u4e2d\u6240\u6709\u6fc0\u5b50\u5bc6\u5ea6\u4e0b\u7684\u975e\u8f90\u5c04\u8870\u53d8"},"content":{"rendered":"<p><strong>\u3010\u5f15\u8a00\u3011<\/strong><\/p>\n<p>\u8fc7\u6e21\u91d1\u5c5e\u4e8c\u786b\u5c5e\u5316\u7269\uff08TMDC\uff09\u5355\u5c42\u5355\u5c42\u4e2d\u7684\u6fc0\u5b50\u590d\u5408\u53d6\u51b3\u4e8e\u6fc0\u5b50\u751f\u6210\u901f\u7387\uff08G\uff09\u3001\u80cc\u666f\u8f7d\u6d41\u5b50\u6d53\u5ea6\u548c\u7535\u5b50\u80fd\u5e26\u7ed3\u6784\u3002\u5728\u7535\u5bb9\u5668\u7ed3\u6784\u4e2d\uff0c\u901a\u8fc7\u6539\u53d8\u5165\u5c04\u6cf5\u6d66\u529f\u7387\u548c\u6805\u6781\u7535\u538b\uff08V<sub>g<\/sub>)\uff09\u6765\u8c03\u8282\u5149\u8f7d\u6d41\u5b50G\u548c\u80cc\u666f\u8f7d\u6d41\u5b50\u6d53\u5ea6\u3002\u9274\u4e8e\u5e93\u4ed1\u76f8\u4e92\u4f5c\u7528\uff0c\u80cc\u666f\u8f7d\u6d41\u5b50\u5c06\u5149\u4ea7\u751f\u7684\u6fc0\u5b50\u53d8\u6210\u5e26\u7535\u7684\u7535\u5b50\uff0c\u8fd9\u4e9b\u7535\u5b50\u5927\u591a\u4e0d\u4f1a\u8f90\u5c04\u5730\u91cd\u65b0\u590d\u5408\u3002\u5728\u6ca1\u6709\u80cc\u666f\u8f7d\u6d41\u5b50\u7684\u60c5\u51b5\u4e0b\uff0c\u5728\u4f4e\u6fc0\u5b50\u5bc6\u5ea6\u4e0b\uff0c\u672c\u5f81\u5355\u5c42\u4e2d\u7684\u4e2d\u6027\u6fc0\u5b50\u5373\u4f7f\u5b58\u5728\u7f3a\u9677\u4e5f\u80fd\u5b8c\u5168\u8f90\u5c04\u590d\u5408\u3002\u7136\u800c\uff0c\u5728\u9ad8\u6fc0\u5b50\u5bc6\u5ea6\u4e0b\uff0c\u4e2d\u6027\u6fc0\u5b50\u7684\u590d\u5408\u4e3b\u8981\u662f\u6fc0\u5b50-\u6fc0\u5b50\u6e6e\u706d\uff08EEA\uff09\uff0c\u5373\u4e00\u4e2a\u6fc0\u5b50\u4e0e\u53e6\u4e00\u4e2a\u6fc0\u5b50\u78b0\u649e\u65f6\u7684\u975e\u8f90\u5c04\u590d\u5408\u3002\u5728\u81ea\u7136\u754c\u4e2d\u53d1\u73b0\u7684\u6240\u6709\u6fc0\u5b50\u6750\u6599\u90fd\u8868\u73b0\u51faEEA\uff0c\u8fd9\u662f\u6240\u6709\u6709\u673a\u548c\u4e00\u4e9b\u65e0\u673a\u53d1\u5149\u5668\u4ef6\u6548\u7387\u4e0b\u964d\u7684\u4e3b\u8981\u539f\u56e0\u3002EEA\u6548\u5e94\u4e0eAuger\u91cd\u7ec4\u6709\u76f8\u4f3c\u4e4b\u5904\uff0c\u540e\u8005\u901a\u5e38\u5728\u4f20\u7edf\u7684\u81ea\u7531\u8f7d\u6d41\u5b50\u7cfb\u7edf\u4e2d\u89c2\u5bdf\u5230\uff0c\u4e5f\u662f\u5728\u53d1\u5149\u4e8c\u6781\u7ba1\u548c\u592a\u9633\u80fd\u7535\u6c60\u4e2d\u89c2\u5bdf\u5230\u7684\u6548\u7387\u4e0b\u964d\u7684\u4e3b\u8981\u539f\u56e0\u3002\u901a\u8fc7\u53c2\u4e0e\u51c6\u7c92\u5b50\u7684\u52a8\u91cf\u548c\u80fd\u91cf\u5b88\u6052\uff0cEEA\u53d6\u51b3\u4e8e\u4e0a\u8ff0\u7b2c\u4e09\u4e2a\u56e0\u7d20\uff1a\u8be6\u7ec6\u7684\u80fd\u5e26\u7ed3\u6784\u3002<\/p>\n<p><strong>\u3010\u6210\u679c\u7b80\u4ecb\u3011<\/strong><\/p>\n<p>\u4eca\u65e5\uff0c\u5728<strong><b>\u7f8e\u56fd<\/b><\/strong><strong><b>\u52a0\u5dde\u5927\u5b66<\/b><\/strong><strong><b>Ali Javey\u6559\u6388<\/b><\/strong><strong><b>\u56e2\u961f<\/b><\/strong><strong><b>\u7b49\u4eba<\/b><\/strong>\u5e26\u9886\u4e0b\uff0c\u540c\u65f6\u8c03\u5236\u4e86\u4e09\u4e2a\u56e0\u7d20\uff0c\u9664\u4e86V<sub>g<\/sub>\u548c\u6cf5\u529f\u7387\uff0c\u8fd8\u901a\u8fc7\u65bd\u52a0\u5355\u8f74\u5e94\u53d8\uff08\u03b5\uff09\u6765\u6539\u53d8\u7535\u5b50\u80fd\u5e26\u7ed3\u6784\u3002\u5728\u9002\u5f53\u7684\u5e94\u53d8\u4e0b\uff0c\u5373\u4f7f\u5728\u9ad8\u6d53\u5ea6\u7684WS<sub>2<\/sub>\u3001WSe<sub>2<\/sub>\u548cMoS<sub>2<\/sub>\u5355\u5c42\u4e2d\uff0c\u6240\u6709\u7684\u4e2d\u6027\u6fc0\u5b50\u4e5f\u4f1a\u53d1\u751f\u8f90\u5c04\u91cd\u7ec4\uff0c\u4ece\u800c\u5728\u6240\u6709\u6d4b\u91cf\u7684Gs\u4e2d\u4ea7\u751f\u63a5\u8fd1\u7edf\u4e00\u7684\u91cf\u5b50\u4ea7\u7387\uff08QY\uff09\u3002\u4e8c\u7ef4\u5468\u671f\u6027\u6676\u4f53\u4e2d\u7535\u5b50\u6001\u5bc6\u5ea6\u5728\u62d3\u6251\u4e0a\u53d7\u5230\u7ea6\u675f\uff0c\u8868\u73b0\u51fa\u5bf9\u6570\u8303\u970d\u592b\u5947\u70b9\uff08VHSs\uff09\uff0c\u8be5\u5947\u70b9\u7531\u80fd\u91cf\u8272\u6563\u4e2d\u7684\u978d\u70b9\u4ea7\u751f\u3002\u5f53\u8dc3\u8fc1\u80fd\u91cf\u63a5\u8fd1VHS\u65f6\uff0c\u5f31\u76f8\u4e92\u4f5c\u7528\u5f80\u5f80\u4f1a\u56e0\u6001\u5bc6\u5ea6\uff08DOS\uff09\u7684\u589e\u5f3a\u800c\u589e\u5f3a\u3002\u5728\u80fd\u91cf\u548c\u52a8\u91cf\u5b88\u6052\u7684\u57fa\u7840\u4e0a\uff0c\u7814\u7a76\u53d1\u73b0\u5f53\u5265\u79bbTMDC\u5355\u5c42\u819c\u8868\u73b0\u51fa\u589e\u5f3a\u7684EEA\uff0c\u56e0\u4e3a\u8fd9\u4e2a\u8fc7\u7a0b\u7684\u6700\u7ec8\u80fd\u91cf\u4e0e\u56fa\u6709\u7684VHS\u76f8\u543b\u5408\u3002\u5e94\u53d8\u4f7f\u6700\u7ec8\u80fd\u91cf\u8fdc\u79bbVHS\u5171\u632f\uff0c\u5e76\u5927\u5927\u964d\u4f4e\u4e86\u786b\u57fa\u548c\u7852\u57faTMDC\u7684EEA\u3002\u56e0\u6b64\uff0c\u5728\u4e00\u4e2a\u5398\u7c73\u7ea7\u5316\u5b66\u6c14\u76f8\u6c89\u79ef\uff08CVD\uff09\u751f\u957f\u7684WS<sub>2<\/sub>\u5355\u5c42\u4e2d\u5747\u5300\u5730\u6291\u5236\u6240\u6709Gs\u4e0b\u7684\u975e\u8f90\u5c04\u590d\u5408\u3002\u76f8\u5173\u6210\u679c\u4ee5\u9898\u4e3a<strong><b>\u201cInhibited nonradiative decay at all exciton densities in monolayer semiconductors\u201d<\/b><\/strong>\u53d1\u8868\u5728\u4e86<strong><b>Science<\/b><\/strong>\u3002<\/p>\n<p><strong>\u3010\u56fe\u6587\u5bfc\u8bfb\u3011<\/strong><\/p>\n<p><strong><b>\u56fe1<\/b><\/strong><strong><b>\u00a0<\/b><\/strong><strong><b>\u5728WS<\/b><\/strong><strong><sub><b>2<\/b><\/sub><\/strong><strong><b>\u4e2d\u7684<\/b><\/strong><strong><b>\u5149\u81f4\u53d1\u5149\u91cf\u5b50\u4ea7\u7387<\/b><\/strong><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-224972\" src=\"\/\/m.iemloyee.com\/wp-content\/uploads\/2021\/07\/F1.large_-3.jpg\" alt=\"\" width=\"600\" height=\"490\" srcset=\"\/\/m.iemloyee.com\/wp-content\/uploads\/2021\/07\/F1.large_-3.jpg 600w, \/\/m.iemloyee.com\/wp-content\/uploads\/2021\/07\/F1.large_-3-300x245.jpg 300w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/p>\n<p><strong><b>\u56fe<\/b><\/strong><strong><b>2 \u5e94\u53d8\u6291\u5236EEA<\/b><\/strong><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-224973\" src=\"\/\/m.iemloyee.com\/wp-content\/uploads\/2021\/07\/F2.large_-3.jpg\" alt=\"\" width=\"600\" height=\"741\" srcset=\"\/\/m.iemloyee.com\/wp-content\/uploads\/2021\/07\/F2.large_-3.jpg 600w, \/\/m.iemloyee.com\/wp-content\/uploads\/2021\/07\/F2.large_-3-243x300.jpg 243w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/p>\n<p><strong><b>\u56fe<\/b><\/strong><strong><b>3<\/b><\/strong><strong><b>\u00a0EEA\u6291\u5236\u7684\u4e00\u822c\u6027\u8d28<\/b><\/strong><strong><b><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-224974\" src=\"\/\/m.iemloyee.com\/wp-content\/uploads\/2021\/07\/F3.large_-3.jpg\" alt=\"\" width=\"600\" height=\"229\" srcset=\"\/\/m.iemloyee.com\/wp-content\/uploads\/2021\/07\/F3.large_-3.jpg 600w, \/\/m.iemloyee.com\/wp-content\/uploads\/2021\/07\/F3.large_-3-300x115.jpg 300w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/b><\/strong><\/p>\n<p><strong><b>\u56fe<\/b><\/strong><strong><b>4<\/b><\/strong><strong><b>\u00a0\u5927\u9762\u79efCVD\u751f\u957f\u7684WS<\/b><\/strong><strong><sub><b>2<\/b><\/sub><\/strong><strong><b>\u4e0a\u7684\u9ad8PL QY<\/b><\/strong><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-224975\" src=\"\/\/m.iemloyee.com\/wp-content\/uploads\/2021\/07\/F4.large_-3.jpg\" alt=\"\" width=\"600\" height=\"776\" srcset=\"\/\/m.iemloyee.com\/wp-content\/uploads\/2021\/07\/F4.large_-3.jpg 600w, \/\/m.iemloyee.com\/wp-content\/uploads\/2021\/07\/F4.large_-3-232x300.jpg 232w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/p>\n<p><strong><b>\u6587\u732e\u94fe\u63a5\uff1a<\/b><\/strong><a href=\"https:\/\/science.sciencemag.org\/content\/373\/6553\/448.full\"><u>Inhibited nonradiative decay at all exciton densities in monolayer semiconductors<\/u><\/a>\uff08Science\uff0c2021\uff0cDOI:10.1126\/science.abi9193\uff09<\/p>\n<p>\u672c\u6587\u7531<strong><b>\u6728\u6587\u97ec<\/b><\/strong>\u7ffb\u8bd1\uff0c\u6750\u6599\u725b\u6574\u7406\u7f16\u8f91\u3002<\/p>\n<p>\u6b22\u8fce\u5927\u5bb6\u5230\u6750\u6599\u4eba\u5ba3\u4f20\u79d1\u6280\u6210\u679c\u5e76\u5bf9\u6587\u732e\u8fdb\u884c\u6df1\u5165\u89e3\u8bfb\uff0c\u6295\u7a3f\u90ae\u7bb1tougao@cailiaoren.com\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u3010\u5f15\u8a00\u3011 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