{"id":116559,"date":"2017-12-15T06:30:27","date_gmt":"2017-12-14T22:30:27","guid":{"rendered":"\/\/m.iemloyee.com\/?p=116559"},"modified":"2017-12-13T14:45:22","modified_gmt":"2017-12-13T06:45:22","slug":"nano-lett-%e7%ac%ac%e4%b8%80%e6%80%a7%e5%8e%9f%e7%90%86%e5%90%ab%e6%97%b6%e5%88%86%e6%9e%90%e7%a1%ab%e5%90%b8%e9%99%84%e5%8e%9f%e5%ad%90%e4%b8%8e%e7%a9%ba%e4%bd%8d%e5%8a%a0%e9%80%9fmos2%e7%94%b5","status":"publish","type":"post","link":"\/\/m.iemloyee.com\/?p=116559","title":{"rendered":"Nano Lett.: \u7b2c\u4e00\u6027\u539f\u7406\u542b\u65f6\u5206\u6790\u786b\u5438\u9644\u539f\u5b50\u4e0e\u7a7a\u4f4d\u52a0\u901fMoS2\u7535\u8377\u590d\u5408\u673a\u5236\u7684\u533a\u522b"},"content":{"rendered":"
\u3010\u5f15\u8a00\u3011<\/strong><\/p>\n \u5355\u5c42\u77f3\u58a8\u70ef\u5f00\u8f9f\u4e86\u5bf9\u539f\u5b50\u7ea7\u539a\u5ea6\u4e8c\u7ef4\u6750\u6599\u7684\u7269\u7406\u63a2\u7d22\u548c\u7814\u7a76\uff0c\u4f46\u7531\u4e8e\u7f3a\u4e4f\u672c\u5f81\u5e26\u9699\uff0c\u9650\u5236\u4e86\u5176\u5728\u7535\u5b50\u548c\u5149\u7535\u5668\u4ef6\u4e2d\u7684\u5e94\u7528\u3002\u800c\u534a\u5bfc\u4f53\u4e8c\u7ef4\u8fc7\u6e21\u91d1\u5c5e\u4e8c\u786b\u65cf\u5316\u5408\u7269MX2<\/sub>\uff08M = Mo, W; X = S, Se, Te\uff09\uff0c \u5177\u6709\u72ec\u7279\u7684\u7535\u5b50\u548c\u5149\u5b66\u6027\u8d28\u6027\u8d28\uff0c\u5f00\u59cb\u5728\u6750\u6599\u79d1\u5b66\u548c\u51dd\u805a\u6001\u7269\u7406\u9886\u57df\u5d2d\u9732\u5934\u89d2\uff0c\u6210\u4e3a\u77f3\u58a8\u70ef\u6f5c\u5728\u7684\u66ff\u4ee3\u54c1\u3002<\/p>\n \u3010\u6210\u679c\u7b80\u4ecb\u3011<\/strong><\/p>\n \u8fd1\u65e5\uff0c\u5357\u52a0\u5dde\u5927\u5b66\u535a\u58eb\u751f\u674e\u6797\u79cb\u3001<\/strong>Oleg V. Prezhdo<\/strong>\u6559\u6388<\/strong>\u4e0e\u5317\u4eac\u5e08\u8303\u5927\u5b66\u9f99\u95f0\u535a\u58eb<\/strong>\u7b49\u4eba\u901a\u8fc7\u7b2c\u4e00\u6027\u539f\u7406\u7684\u91cf\u5b50\u529b\u5b66\u8ba1\u7b97\uff0c\u6307\u51fa\u786b\u5438\u9644\u539f\u5b50\u548c\u786b\u7a7a\u4f4d\u90fd\u53ef\u4ee5\u52a0\u901f\u975e\u8f90\u5c04\u7535\u5b50-\u7a7a\u7a74\u590d\u5408\uff0c\u4f46\u662f\u52a0\u901f\u590d\u5408\u7684\u7269\u7406\u673a\u5236\u4e0d\u540c\u3002\u8be5\u7814\u7a76\u53d1\u8868\u4e8eNano Letters<\/strong>\uff0c\u9898\u4e3a\u201cSulfur Adatom and Vacancy Accelerate Charge Recombination in MoS2<\/sub> but by Different Mechanisms: Time-Domain Ab Initio Analysis<\/strong>\u201d\u3002\u7814\u7a76\u53d1\u73b0\uff0c\u7531\u4e8e\u52bf\u9631\u88ab\u5f3a\u70c8\u5730\u5c40\u57df\u5316\u4e14\u4e0e\u81ea\u7531\u7535\u8377\u5206\u79bb\uff0c\u6240\u4ee5\u7a7a\u7a74\u5e76\u672a\u5360\u636e\u786b\u539f\u5b50\u4ea7\u751f\u7684\u6d45\u52bf\u9631\u6001\u3002\u7535\u8377\u590d\u5408\u907f\u5f00\u4e86\u7a7a\u7a74\u9677\u9631\u6001\uff0c\u800c\u76f4\u63a5\u5728\u81ea\u7531\u7535\u5b50\u548c\u7a7a\u7a74\u4e4b\u95f4\u53d1\u751f\u3002\u6b64\u5916\uff0c\u786b\u5438\u9644\u539f\u5b50\u5f3a\u70c8\u5730\u5e72\u6270\u4e86MoS2<\/sub>\u5c42\uff0c\u7834\u574f\u4e86\u5176\u5bf9\u79f0\u6027\uff0c\u5bfc\u81f4\u66f4\u591a\u7684\u58f0\u5b50\u6a21\u5f0f\u4e0e\u7535\u5b50\u8026\u5408\uff0c\u6240\u4ee5\u590d\u5408\u6bd4\u5b8c\u7f8e\u65e0\u7f3a\u9677\u7684\u5355\u5c42MoS2<\/sub>\u66f4\u5feb\u3002\u4e0e\u6b64\u76f8\u53cd\uff0c\u786b\u7a7a\u4f4d\u5bfc\u81f4\u7684\u7535\u5b50\u548c\u7a7a\u7a74\u4fd8\u83b7\u6001\u5177\u6709\u79bb\u57df\u7279\u70b9\uff0c\u52a0\u901f\u7535\u5b50-\u7a7a\u7a74\u590d\u5408\u9075\u4ece\u4f20\u7edf\u673a\u5236\uff0c\u5305\u542b\u7535\u8377\u4fd8\u83b7\u548c\u968f\u540e\u7684\u590d\u5408\u8fc7\u7a0b\u3002\u672c\u7814\u7a76\u7a81\u51fa\u663e\u793a\u4e86\u4e0d\u540c\u7c7b\u578b\u7f3a\u9677\u7684\u4e0d\u540c\u884c\u4e3a\uff0c\u63ed\u793a\u4e86\u610f\u60f3\u4e0d\u5230\u7684\u7279\u70b9\uff0c\u5e76\u63d0\u51fa\u4e86\u8c03\u63a7MX2<\/sub>\u6027\u8d28\u548c\u6784\u5efa\u9ad8\u6027\u80fd\u5668\u4ef6\u6240\u9700\u7684\u7535\u8377\u52a8\u529b\u5b66\u7684\u673a\u7406\u3002<\/p>\n \u3010\u56fe\u6587\u5bfc\u8bfb\u3011<\/strong><\/p>\n \u00a0<\/strong>\u56fe<\/strong>1. <\/strong>\u8f7d\u6d41\u5b50\u9677\u9631\u548c\u5f1b\u8c6b\u52a8\u529b\u5b66\u4e2d\u6d89\u53ca\u7684\u7535\u5b50\u80fd\u7ea7<\/strong><\/p>\n \u5149\u6fc0\u53d1\u540e\uff0c\u5bfc\u5e26\uff08CB\uff09\u4e2d\u7684\u7535\u5b50\u53ef\u4ee5\u76f4\u63a5\u4e0e\u4ef7\u5e26\uff08VB\uff09\u4e2d\u7684\u7a7a\u7a74\u590d\u5408\u2460\u3002\u4e00\u90e8\u5206\u5149\u6fc0\u53d1\u7535\u5b50\u53ef\u4ee5\u88ab\u672a\u5360\u636e\u7684\u7f3a\u9677\u80fd\u7ea7\uff08\u7535\u5b50\u9677\u9631\u6001\uff09\u6240\u6355\u83b7\u2461\u3002\u6355\u83b7\u4e4b\u540e\uff0c\u7535\u5b50\u53ef\u4ee5\u4e0eVB\u7a7a\u7a74\u53d1\u751f\u590d\u5408\u2462\u3002\u7c7b\u4f3c\u5730\uff0c\u7a7a\u7a74\u53ef\u4ee5\u88ab\u5360\u636e\u7684\u7f3a\u9677\u80fd\u7ea7\uff08\u7a7a\u7a74\u9677\u9631\u6001\uff09\u4fd8\u83b7\uff0c\u7136\u540e\u4e0eCB\u7535\u5b50\u2464\u6216\u88ab\u4fd8\u83b7\u7684\u7535\u5b50\u2465\u590d\u5408\u3002\u6a59\u8272\u8868\u793a\u7535\u5b50\uff0c\u7fe0\u7eff\u8272\u8868\u793a\u7a7a\u7a74\u3002<\/p>\n \u56fe<\/strong>2. <\/strong>\u4fa7\u89c6\u56fe\u548c\u4fef\u89c6\u56fe<\/strong><\/p>\n \uff08a\uff09\u5b8c\u7f8e\u7684\u5355\u5c42MoS2<\/sub>\uff0c\uff08b\uff09\u542b\u6709S\u5438\u9644\u539f\u5b50\uff08Ad_S\uff09\u7684\u5355\u5c42MoS2<\/sub>,\uff08c\uff09\u542b\u6709S\u7a7a\u4f4d\uff08V_S\uff09\u7684\u5355\u5c42MoS2<\/sub>\u3002\u7eff\u8272\u4ee3\u8868Mo\uff0c\u9ec4\u8272\u4ee3\u8868S\u3002\u4fa7\u89c6\u56fe\u548c\u4fef\u89c6\u56fe\u4e2d\u5206\u522b\u4ee5\u7ea2\u8272\u7bad\u5934\u548c\u7ea2\u8272\u5706\u5708\u7a81\u51fa\u663e\u793a\u7f3a\u9677\u3002<\/p>\n \u56fe<\/strong>3. <\/strong>\u6001\u5bc6\u5ea6\u548c\u7535\u8377\u5bc6\u5ea6\u56fe<\/strong><\/p>\n \uff08a\uff09\u3001\uff08b\uff09\u548c\uff08c\uff09\u5206\u522b\u4e3a\u5b8c\u7f8e\u7684\u5355\u5c42MoS2<\/sub>\u3001Ad_S\u548cV_S\u7684\u6001\u5bc6\u5ea6\uff08\u5de6\u56fe\uff09\u548c\u7535\u8377\u5bc6\u5ea6\uff08\u53f3\u56fe\u548c\u63d2\u56fe\uff09\u3002\u63d2\u56fe\u663e\u793a\u7f3a\u9677\u6001\u7684\u7535\u8377\u5bc6\u5ea6\u3002\u53f3\u4fa7\u663e\u793a\u80fd\u5e26\u8fb9\u7f18\u7684\u7535\u8377\u5bc6\u5ea6\u3002Ad_S\u5728VB\u8fb9\u7f18\u6709\u6d45\u5c40\u57df\u7a7a\u7a74\u9677\u9631\u72b6\u6001\u3002V_S\u6709\u4e24\u4e2a\u9677\u9631\u6001\uff1a\u9760\u8fd1VB\u8fb9\u7f18\u7684\u6d45\u7a7a\u7a74\u9677\u9631\u6001\u548c\u5728CB\u8fb9\u7f18\u4ee5\u4e0b0.6 eV\u7684\u6df1\u80fd\u7ea7\u5b9a\u57df\u7535\u5b50\u9677\u9631\u6001\u3002VB\u8fb9\u7f18\u7684\u7535\u8377\u5bc6\u5ea6\u53d7\u5230\u7f3a\u9677\u7684\u5f3a\u70c8\u5e72\u6270\uff0c\u800cCB\u8fb9\u7f18\u72b6\u6001\u4fdd\u6301\u4e0d\u53d8\u3002<\/p>\n \u56fe<\/strong>4. <\/strong>\u8f7d\u6d41\u5b50\u9677\u9631\u548c\u590d\u5408\u52a8\u529b\u5b66<\/strong><\/p>\n \uff08a\uff09\u3001\uff08b\uff09\u548c\uff08c\uff09\u5206\u522b\u4e3a\u5b8c\u7f8e\u7684\u5355\u5c42MoS2<\/sub>\u3001Ad_S\u548cV_S\u7684\u8f7d\u6d41\u5b50\u4fd8\u83b7\u548c\u590d\u5408\u52a8\u529b\u5b66\u3002\u7535\u5b50-\u7a7a\u7a74\u590d\u5408\u7528\u9ed1\u7ebf\u8868\u793a\uff08\u56fe1\u4e2d\u7684\u8fc7\u7a0b\u2460\uff09\u3002\u7a7a\u7a74\u4fd8\u83b7\u548c\u7a7a\u7a74\u9677\u9631\u534f\u52a9\u7684\u590d\u5408\u4ee5\u7ea2\u8272\u8868\u793a\uff08\u56fe1\u4e2d\u7684\u8fc7\u7a0b\u2463\u548c\u2464\uff09\u3002\u7535\u5b50\u4fd8\u83b7\u548c\u7535\u5b50\u9677\u9631\u534f\u52a9\u7684\u590d\u5408\u4ee5\u84dd\u8272\u8868\u793a\uff08\u56fe1\u4e2d\u7684\u8fc7\u7a0b\u2461\u548c\u2462\uff09\u3002\u901a\u8fc7\u7535\u5b50\u548c\u7a7a\u7a74\u540c\u6b65\u4fd8\u83b7\u7684\u590d\u5408\u4ee5\u7d2b\u8272\u8868\u793a\uff08\u56fe1\u4e2d\u7684\u8fc7\u7a0b\u2461+\u2463\u548c\u2465\uff09\u3002<\/p>\n \u56fe5. <\/strong>\u8f7d\u6d41\u5b50\u52a8\u529b\u5b66\u4e2d\u6d89\u53ca\u7684\u58f0\u5b50\u6a21\u5f0f<\/strong><\/p>\n \uff08a\uff09\u3001\uff08b\uff09\u548c\uff08c\uff09\u5206\u522b\u4e3a\u5b8c\u7f8e\u7684\u5355\u5c42MoS2<\/sub>\u3001Ad_S\u548cV_S\uff08\u4e09\u3001\u56db\u884c\uff09\u4e2d\u8f7d\u6d41\u5b50\u52a8\u529b\u5b66\u6d89\u53ca\u7684\u58f0\u5b50\u6a21\u5f0f\u3002\u5cf0\u9ad8\u8868\u5f81\u7535\u58f0\u8026\u5408\u7684\u5f3a\u5ea6\u3002S\u5438\u9644\u539f\u5b50\u5141\u8bb8\u591a\u79cd\u58f0\u5b50\u6a21\u5f0f\u4e0e\u8f7d\u6d41\u5b50\u8026\u5408\uff0c\u52a0\u5feb\u590d\u5408\uff08\u56fe4\uff09\u3002<\/p>\n \u3010\u5c0f\u7ed3\u3011<\/strong><\/p>\n \u8be5\u5de5\u4f5c\u7814\u7a76\u4e86\u4e24\u79cd\u6700\u5e38\u89c1\u7684\u672c\u5f81\u70b9\u7f3a\u9677\uff08S\u5438\u9644\u539f\u5b50\u548cS\u7a7a\u4f4d\uff09\u5f71\u54cd\u5355\u5c42MoS2<\/sub>\u4e2d\u8f7d\u6d41\u5b50\u7684\u6355\u83b7\u548c\u590d\u5408\u52a8\u529b\u5b66\u3002\u7814\u7a76\u4e2d\u53d1\u73b0\u7684MoS2<\/sub>\u4e2d\u7f3a\u9677\u5f15\u8d77\u7684\u8f7d\u6d41\u5b50\u635f\u5931\u7684\u65b0\u673a\u5236\u53ef\u4ee5\u9002\u7528\u4e8e\u5927\u591a\u6570\u534a\u5bfc\u4f53\uff0c\u5c24\u5176\u662f\u5bf9\u4e8eMX2<\/sub>\u548c\u5176\u4ed6\u4e8c\u7ef4\u6750\u6599\uff0c\u56e0\u4e3a\u5b83\u4eec\u5177\u6709\u6781\u9ad8\u7684\u8868\u9762\u79ef\u548c\u4f53\u79ef\u6bd4\uff0c\u5e76\u4e14\u5bb9\u6613\u53d1\u751f\u673a\u68b0\u5f62\u53d8\u3002\u4ece\u5b9e\u9645\u7684\u89d2\u5ea6\u6765\u770b\uff0c\u8ba1\u7b97\u7ed3\u679c\u8868\u660e\u7531\u4e8eS\u7a7a\u4f4d\u5bfc\u81f4\u7684\u7535\u5b50-\u7a7a\u7a74\u590d\u5408\u6bd4S\u5438\u9644\u539f\u5b50\u6162\uff0c\u56e0\u6b64\uff0c\u524d\u8005\u5bf9MX2<\/sub>\u5668\u4ef6\u7684\u6027\u80fd\u964d\u4f4e\u7684\u5f71\u54cd\u6bd4\u597d\u3002\u7814\u7a76\u7ed3\u679c\u4e0e\u73b0\u6709\u7684\u5b9e\u9a8c\u6570\u636e\u975e\u5e38\u543b\u5408\uff0c\u9610\u660e\u4e86\u70b9\u7f3a\u9677\u5982\u4f55\u5f71\u54cdMoS2<\/sub>\u5355\u5c42\u7684\u6027\u8d28\uff0c\u4e3aMX2<\/sub>\u4e2d\u7684\u7f3a\u9677\u5de5\u7a0b\u548c\u6fc0\u53d1\u6001\u52a8\u529b\u5b66\u63d0\u4f9b\u4e86\u7406\u8bba\u4f9d\u636e\uff0c\u5e76\u63d0\u51fa\u4e86\u57fa\u4e8e\u7535\u5b50\u548c\u5149\u4f0f\u5668\u4ef6\u4f18\u5316MX2<\/sub>\u6027\u80fd\u7684\u9014\u5f84\u3002<\/p>\n \u6587\u732e\u94fe\u63a5\uff1a <\/strong>Sulfur Adatom and Vacancy Accelerate Charge Recombination in MoS2<\/sub> but by Different Mechanisms: Time-Domain Ab Initio Analysis <\/a>(Nano Letters, 2017, DOI: 10.1021\/acs.nanolett.7b04374)<\/p>\n \u8be5\u7814\u7a76\u56e2\u961f\u5728TMD\u65b9\u9762\u8fd8\u6709\u4ee5\u4e0b\u5de5\u4f5c\uff1a<\/p>\n http:\/\/pubs.acs.org\/doi\/10.1021\/acs.nanolett.5b05264<\/a><\/p>\n http:\/\/pubs.acs.org\/doi\/10.1021\/acs.nanolett.7b00167<\/a><\/p>\n \u6700\u8fd1\u5173\u4e8e\u9499\u949b\u77ff\u5ef6\u8fdf\u8367\u5149\u7684\u5de5\u4f5c\uff1a<\/p>\n http:\/\/pubs.acs.org\/doi\/10.1021\/jacs.7b06401<\/a><\/p>\n \u672c\u6587\u7531\u6750\u6599\u4eba\u8ba1\u7b97\u6750\u6599\u7ec4Annay\u4f9b\u7a3f\uff0c\u6750\u6599\u725b\u6574\u7406\u7f16\u8f91\u3002<\/p>\n \u6750\u6599\u725b\u7f51\u4e13\u6ce8\u4e8e\u8ddf\u8e2a\u6750\u6599\u9886\u57df\u79d1\u6280\u53ca\u884c\u4e1a\u8fdb\u5c55\uff0c\u8fd9\u91cc\u6c47\u96c6\u4e86\u5404\u5927\u9ad8\u6821\u7855\u535a\u751f\u3001\u4e00\u7ebf\u79d1\u7814\u4eba\u5458\u4ee5\u53ca\u884c\u4e1a\u4ece\u4e1a\u8005\uff0c\u5982\u679c\u60a8\u5bf9\u4e8e\u8ddf\u8e2a\u6750\u6599\u9886\u57df\u79d1\u6280\u8fdb\u5c55\uff0c\u89e3\u8bfb\u9ad8\u6c34\u5e73\u6587\u7ae0\u6216\u662f\u8bc4\u8ff0\u884c\u4e1a\u6709\u5174\u8da3\uff0c\u70b9\u6211\u52a0\u5165\u7f16\u8f91\u90e8\u5927\u5bb6\u5ead<\/a>\u3002<\/p>\n \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<\/a>\u3002<\/p>\n \u6295\u7a3f\u4ee5\u53ca\u5185\u5bb9\u5408\u4f5c\u53ef\u52a0\u7f16\u8f91\u5fae\u4fe1\uff1a<\/strong>RDD-2011-CHERISH<\/strong>\uff0c\u4efb\u4e39\u4e39\uff0c\u6211\u4eec\u4f1a\u9080\u8bf7\u5404\u4f4d\u8001\u5e08\u52a0\u5165\u4e13\u5bb6\u7fa4\u3002<\/strong><\/p>\n<\/p>\n
<\/p>\n
<\/p>\n
<\/p>\n
<\/p>\n