{"id":154956,"date":"2018-10-01T06:13:01","date_gmt":"2018-09-30T22:13:01","guid":{"rendered":"\/\/m.iemloyee.com\/?p=154956"},"modified":"2018-09-30T16:13:23","modified_gmt":"2018-09-30T08:13:23","slug":"%e5%8c%88%e7%89%99%e5%88%a9%e7%a7%91%e5%ad%a6%e9%99%a2nature%e5%ad%90%e5%88%8a%ef%bc%9a%e7%8e%af%e5%a2%83%e6%9d%a1%e4%bb%b6%e4%b8%8bmos2%e5%8d%95%e5%b1%82%e5%9f%ba%e9%9d%a2%e9%80%9a%e8%bf%87%e6%b0%a7","status":"publish","type":"post","link":"\/\/m.iemloyee.com\/?p=154956","title":{"rendered":"\u5308\u7259\u5229\u79d1\u5b66\u9662Nature\u5b50\u520a\uff1a\u73af\u5883\u6761\u4ef6\u4e0bMoS2\u5355\u5c42\u57fa\u9762\u901a\u8fc7\u6c27\u66ff\u6362\u53cd\u5e94\u5b9e\u73b0\u81ea\u53d1\u63ba\u6742"},"content":{"rendered":"

\u3010\u5f15\u8a00\u3011<\/strong><\/p>\n

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\n \u77f3\u58a8\u70ef\u7684\u6c27\u5316\u662f\u4e00\u79cd\u9ad8\u6548\u5265\u79bb\u7eb3\u7c73\u7247\u7684\u65b9\u6cd5\uff0c\u4e14\u5df2\u88ab\u5e7f\u6cdb\u7814\u7a76\uff0c\u800c\u6c27\u5316\u53cd\u5e94\u5bf9\u4e8e2D TMDC\u6676\u4f53\u4ecd\u7279\u522b\u91cd\u8981\uff0c\u56e0\u4e3a\u4e00\u4e9b\u6676\u4f53\u53ef\u4ee5\u5728\u73af\u5883\u6761\u4ef6\u4e0b\u81ea\u53d1\u6c27\u5316\u3002\u56e0\u6b64\u7814\u7a76\u8fd9\u79cd\u53cd\u5e94\u5bf9\u4e8e\u7406\u89e3\u8fd9\u4e9b\u6676\u4f53\u7684\u957f\u671f\u73af\u5883\u7a33\u5b9a\u6027\u81f3\u5173\u91cd\u8981\uff0c\u4e5f\u53ef\u80fd\u4e3a\u5316\u5b66\u6cd5\u8bbe\u8ba1\u5176\u6027\u8d28\u521b\u9020\u65b0\u7684\u8def\u5f84\u3002\u867d\u7136MoS2<\/sub>\u5757\u72b6\u6676\u4f53\u5728\u73af\u5883\u6761\u4ef6\u4e0b\u53ef\u4ee5\u7a33\u5b9a\u5b58\u5728\uff0c\u4f46\u76f8\u5173\u7814\u7a76\u8868\u660e\u5728\u73af\u5883\u6761\u4ef6\u4e0b\u5355\u5c42MoS2<\/sub>\u4e5f\u53ef\u4ee5\u53d1\u751f\u6c27\u5316\u53cd\u5e94\uff0c\u7531\u6c27\u5316\u53cd\u5e94\u5f15\u8d77\u7684\u523b\u8680\u8d77\u6e90\u4e8e\u8fb9\u7f18\u548c\u6676\u754c\u5e76\u9010\u6e10\u5411\u8584\u7247\u5185\u90e8\u5ef6\u4f38\u3002MoS2<\/sub>\u57fa\u9762\u4e0a\u7684\u53ef\u63a7\u53d6\u4ee3\u6c27\u5316\u662f\u4fdd\u6301\u539f\u59cbMoS2<\/sub>\u6676\u4f53\u7ed3\u6784\u975e\u5e38\u53ef\u53d6\u7684\u4e00\u79cd\u65b9\u6cd5\uff0c\u8be5\u65b9\u6cd5\u53ef\u80fd\u5bf9\u7535\u5b50\u5e26\u7ed3\u6784\u4ea7\u751f\u6781\u5927\u5f71\u54cd\uff0c\u4ece\u800c\u6709\u6548\u5730\u8bbe\u8ba1\u5176\u7535\u5b50\u548c\u5149\u5b66\u6027\u80fd\u3002<\/p>\n

\u3010\u6210\u679c\u7b80\u4ecb\u3011<\/strong><\/p>\n

\u8fd1\u65e5\uff0c\u5308\u7259\u5229\u79d1\u5b66\u9662\u7684Levente Tapaszt\u00f3\u6559\u6388\uff08\u901a\u8baf\u4f5c\u8005\uff09<\/strong>\u7b49\u4eba\u62a5\u9053\u4e86\u4e00\u79cd\u5355\u539f\u5b50\u91cf\u7ea7\u7684\u7814\u7a76\uff0c\u5176\u63ed\u793a\u4e86\u8fd9\u6837\u4e00\u79cd\u73b0\u8c61\uff1a\u5728\u73af\u5883\u6761\u4ef6\u4e0b\u6c27\u539f\u5b50\u53ef\u4ee5\u81ea\u53d1\u63ba\u6742\u8fdb\u5165MoS2<\/sub>\u5355\u5c42\u57fa\u9762\u4e2d\u3002STM\u7814\u7a76\u8868\u660e\u5176\u662f\u4e00\u79cd\u7f13\u6162\u7684\u6c27\u66ff\u4ee3\u53cd\u5e94\uff0c\u5728\u8be5\u53cd\u5e94\u671f\u95f4\uff0c\u4e2a\u522b\u786b\u539f\u5b50\u88ab\u6c27\u4e00\u4e2a\u63a5\u4e00\u4e2a\u5730\u53d6\u4ee3\uff0c\u5f62\u6210\u56fa\u6eb6\u578b2D MoS2-x<\/sub>Ox<\/sub>\u6676\u4f53\u3002\u5b58\u5728\u4e8e\u6574\u4e2a\u57fa\u9762\u7684\u6c27\u53d6\u4ee3\u4f4d\u70b9\u5145\u5f53\u5355\u539f\u5b50\u53cd\u5e94\u4e2d\u5fc3\uff0c\u6781\u5927\u5730\u589e\u52a0\u4e86\u6574\u4e2aMoS2<\/sub>\u57fa\u9762\u7528\u4e8e\u7535\u5316\u5b66\u6790\u6c22\u53cd\u5e94\u7684\u50ac\u5316\u6d3b\u6027\u3002\u8be5\u6210\u679c\u4e3a\u4ee5\u9898\u4e3a\u201cSpontaneous doping of the basal plane of MoS2<\/sub> single layers through oxygen substitution under ambient conditions<\/strong>\u201d\u53d1\u8868\u4e8e\u8457\u540d\u5316\u5b66\u671f\u520aNature Chemistry<\/strong>\u4e0a<\/p>\n

\u3010\u56fe\u6587\u5bfc\u8bfb\u3011<\/strong><\/p>\n

\u56fe\u4e00 MoS2<\/sub>\u901a\u8fc7\u73af\u5883\u6c27\u5316\u4e3a2D MoS2-x<\/sub>Ox<\/sub>\u56fa\u6eb6\u6676\u4f53<\/strong><\/p>\n

\"\"
\n \uff08a\uff09\u5355\u5c42MoS2-x<\/sub>Ox<\/sub>\u56fa\u6eb6\u4f53\u7684\u539f\u5b50\u7ed3\u6784\u793a\u610f\u56fe
\n \uff08b\u3001c\uff09\u5728\u73af\u5883\u4e2d\u66b4\u9732\u4e00\u4e2a\u6708\uff08b\uff09\u548c\u4e00\u5e74\uff08c\uff09\u540e\u5265\u79bb\u51fa\u7684\u5355\u5c42MoS2<\/sub>\u7684\u539f\u5b50\u5206\u8fa8\u7684STM\u56fe\u50cf\uff085 mA\u30012 nA\uff09\uff0c\u5176\u7f3a\u9677\u662f\u9010\u6e10\u5f62\u6210\u7684
\n \uff08d\uff09\u66f4\u9ad8\u5206\u8fa8\u7684STM\u56fe\u50cf\u8868\u660eO\u539f\u5b50\uff08\u4eae\u70b9\uff09\u63d2\u5165\u5230S\u7a7a\u4f4d\uff08\u6697\u70b9\uff09\u4e2d\uff0c\u63d2\u56fe\u8868\u793a\u57fa\u4e8e2D MoS2<\/sub>\u6676\u4f53\u4e2dO\u9971\u548cS\u7a7a\u4f4d\u70b9\u7684DFT\u8ba1\u7b97\u6a21\u62dfSTM\u56fe\u50cf<\/p>\n

\u56fe\u4e8c 2D MoSe2<\/sub>\u57fa\u9762\u5728\u73af\u5883\u6761\u4ef6\u4e0b\u7684\u7a33\u5b9a\u6027<\/strong><\/p>\n

\"\"
\n \uff08a\u3001b\uff092D MoSe2<\/sub>\u6676\u4f53\u5728Au\uff08111\uff09\u886c\u5e95\u4e0a\u7684\u539f\u5b50\u5206\u8fa8STM\u56fe\u50cf\uff0c\u5176\u4e2d\uff08a\uff09\u662f\u65b0\u51c6\u5907\u7684\u6837\u54c1\uff0c\uff08b\uff09\u662f\u5728\u73af\u5883\u4e2d\u66b4\u97321\u5e74\u540e\u7684\u6837\u54c1\uff0c\u7ed3\u679c\u8868\u660e\u5728\u73af\u5883\u6761\u4ef6\u4e0b\u57fa\u9762\u5177\u6709\u663e\u8457\u7684\u7a33\u5b9a\u6027\uff0c\u5728\uff08a\uff09\u4e2d\u7684\u63d2\u56fe\u8868\u793a\u66f4\u9ad8\u5206\u8fa8\u7684STM\u56fe\u50cf\u4ee5\u53ca\u5bf9\u5e94\u7684\u660e\u4eae\uff08\u5316\u5b66\u5438\u9644\u539f\u5b50\uff09\u548c\u6697\uff08Se\u7a7a\u4f4d\uff09\u7f3a\u9677\u4f4d\u70b9\u7684\u56fe\u50cf\uff0c\u7f3a\u9677\u7684\u6570\u91cf\u5e76\u672a\u968f\u7740\u66b4\u9732\u65f6\u95f4\u7684\u589e\u52a0\u800c\u589e\u591a<\/p>\n

\u56fe\u4e09 MoS2<\/sub>\u548cMoSe2<\/sub>\u57fa\u9762\u4e2dO\u53d6\u4ee3\u7684\u80fd\u91cf\u548c\u52a8\u529b\u5b66<\/strong><\/p>\n

\"\"
\n \uff08a\u3001b\uff09\u5bf9\u65e0\u7f3a\u9677\u76842D MoS2<\/sub>\u57fa\u9762\uff08a\uff09\u91c7\u7528\u8d1f\u6c27\u5316\u7113\uff08\u0394E\uff09\u4ee5\u53ca\u5bf9MoSe2<\/sub>\u91c7\u7528\u6b63\u7113\u6765\u8868\u5f81\u901a\u8fc7\u6c27\u5316\u5f62\u6210\u786b\u5c5e\u539f\u5b50\u7a7a\u4f4d\u7684\u8fc7\u7a0b\uff0c\u7531\u4e8e\u5f62\u6210SeO2<\/sub>\uff08b\uff09\u6240\u4ea7\u751f\u7684\u5438\u70ed\u7279\u6027\u53ef\u963b\u6b62\u6c27\u5316
\n \uff08c\u3001d\uff09\u7528NEB\u6a21\u578b\u6240\u8ba1\u7b972D MoS2<\/sub>\uff08c\uff09\u548c2D MoSe2<\/sub>\uff08d\uff09\u6676\u4f53\u7684\u52a8\u80fd\u52bf\u5792\u8868\u660eMoS2<\/sub>\u5177\u6709\u66f4\u4f4e\u7684\u52bf\u5792\uff0c\u5176\u503c\u4ec5\u4e3a~1 eV\uff0c\u5373\u4f7f\u662f\u5ba4\u6e29\u4e5f\u53ef\u4ee5\u5728\u6570\u6708\u514b\u670d\u5176\u52bf\u5792<\/p>\n

\u56fe\u56db 2D MoS2-x<\/sub>Ox<\/sub>\u8fd8\u539f\u4e3a\u539f\u59cb\u7684MoS2<\/sub><\/strong><\/p>\n

\"\"
\n 2D MoS2-x<\/sub>Ox<\/sub>\u5728H2<\/sub>S\u6c14\u6c1b\u4e2d\u4ee5200\u2103\u7684\u6e29\u5ea6\u9000\u706b30 min\u524d\uff08a\uff09\u540e\uff08b\uff09\u7684\u5177\u6709\u4ee3\u8868\u6027\u7684\u539f\u5b50\u5206\u8fa8STM\u56fe\u50cf\uff0c\u5176\u7ed3\u679c\u8868\u660e\u901a\u8fc7S\u539f\u5b50\u91cd\u65b0\u53d6\u4ee3\u4e2a\u522bO\u539f\u5b50\uff0c\u53ef\u5c06\u6c27\u786b\u56fa\u6eb6\u4f53\u5b8c\u7f8e\u5730\u8fd8\u539f\u4e3a\u7eafMoS2<\/sub>\u76f8<\/p>\n

\u56fe\u4e94 2D MoS2-x<\/sub>Ox<\/sub>\u5bf9\u4e8e\u6790\u6c22\u7684\u50ac\u5316\u6d3b\u6027<\/strong><\/p>\n

\"\"
\n Au\u886c\u5e95\u3001MoS2<\/sub>\u5355\u5c42\u3001MoS2-x<\/sub>Ox<\/sub>\u5355\u5c42\uff081\u5e74\u524d\uff09\u548cPt\u886c\u5e95\u7684\u7ebf\u6027\u626b\u9762\u4f0f\u5b89\u66f2\u7ebf\uff08a\uff09\u4ee5\u53ca\u76f8\u5e94\u7684Tafel\u56fe\uff08b\uff09\uff0c\u5176\u7ed3\u679c\u8868\u660e2D\u6c27\u786b\u76f8\u7684\u50ac\u5316\u6d3b\u6027\u4e0e\u7eafMoS2<\/sub>\u76f8\u76f8\u6bd4\u663e\u8457\u63d0\u9ad8\uff0c\u50ac\u5316\u6d3b\u6027\u7684\u589e\u52a0\u53ef\u4ee5\u5f52\u56e0\u4e8e\u5728\u73af\u5883\u66b4\u9732\u4e0b\u5355\u539f\u5b50O\u4f4d\u70b9\u9010\u6b65\u63ba\u5165\u5230MoS2<\/sub>\u57fa\u9762\u4e2d\uff0cb\u4e2d\u7684\u865a\u7ebf\u5bf9\u5e94\u4e8eTafel\u56fe\u7684\u4f4e\u7535\u6d41\u90e8\u5206\u7684\u7ebf\u6027\u62df\u5408\uff0c\u7528\u4ee5\u8ba1\u7b97\u5176\u659c\u7387<\/p>\n

\u3010\u5c0f\u7ed3\u3011<\/strong><\/p>\n

\u672c\u6587\u8868\u660e\u4e86MoS2<\/sub>\u5355\u5c42\u57fa\u9762\uff0c\u5f53\u5176\u957f\u671f\u66b4\u9732\u4e8e\u73af\u5883\u4e2d\u65f6\uff0c\u81ea\u53d1\u5730\u53d1\u751fO\u66ff\u4ee3\u53cd\u5e94\uff0c\u751f\u6210\u9ad8\u7ed3\u6676\u6027\u76842D\u6c27\u786b\u5316\u94bc\u76f8\u3002\u8be5\u5316\u5408\u7269\u4e3a\u7406\u89e3\u6d3b\u6027\u4f4d\u70b9\u548cHER\u50ac\u5316\u6d3b\u6027\u4e4b\u95f4\u7684\u539f\u5b50\u7ea7\u5173\u7cfb\u63d0\u4f9b\u4e86\u4e00\u79cd\u7406\u60f3\u7684\u6a21\u578b\u4f53\u7cfb\uff0c\u5176\u5177\u6709\u5355\u4e00\u7684\u6d3b\u6027\u4f4d\u70b9\u548c\u539f\u5b50\u7ed3\u6784\uff0c\u800c\u5176\u8fb9\u7f18\u548c\u5148\u524d\u6240\u7814\u7a76\u7684\u66f4\u65e0\u5e8fMoS2<\/sub>\u7ed3\u6784\u53ef\u4ee5\u5bb9\u7eb3\u5177\u6709\u590d\u6742\u539f\u5b50\u914d\u7f6e\u7684\u5404\u79cd\u6d3b\u6027\u4f4d\u70b9\uff0c\u800c\u4e14\u5e38\u5e38\u5bf9\u5176\u7cbe\u786e\u539f\u5b50\u6027\u8d28\u7684\u5b9e\u9a8c\u6027\u63a2\u67e5\u66f4\u5c11\u3002\u8fd9\u4e9b\u53d1\u73b0\u6e05\u6670\u7684\u8868\u660e\uff0c\u672c\u6587\u6240\u62a5\u9053\u7684MoS2<\/sub>\u57fa\u9762\u7684\u53d6\u4ee3\u6c27\u5316\u8fc7\u7a0b\u53ef\u4ee5\u4e3a\u8bbe\u8ba1\u5177\u6709\u66f4\u9ad8\u6d3b\u6027\u5bc6\u5ea6\u7684\u5355\u6c27\u539f\u5b50\u6d3b\u6027\u4f4d\u70b9\uff08\u5176\u4f18\u4e8e\u5148\u524d\u7684\u5355\u4e2a\u6742\u539f\u5b50\u50ac\u5316\u5242\uff09\u76842D\u7535\u50ac\u5316\u5242\u5f00\u8f9f\u4e00\u6761\u65b0\u7684\u8def\u5f84\u3002<\/p>\n

\u6587\u732e\u8fde\u63a5\uff1aSpontaneous doping of the basal plane of MoS2<\/sub> single layers through oxygen substitution under ambient conditions<\/a><\/strong>\uff08Nature Chemistry, 2018, DOI: 10.1038\/s41557-018-0136-2\uff09<\/p>\n

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\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.<\/p>\n

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