{"id":113618,"date":"2017-12-01T06:30:52","date_gmt":"2017-11-30T22:30:52","guid":{"rendered":"http:\/\/www.cailiaoniu.com\/?p=113618"},"modified":"2017-12-03T21:56:07","modified_gmt":"2017-12-03T13:56:07","slug":"nano-lett-%e6%9d%82%e5%8c%96%e6%96%9c%e6%96%b9%e6%99%b6%e7%b3%bbch3nh3pbi3%e9%92%99%e9%92%9b%e7%9f%bf%e5%85%89%e7%94%9f%e7%a9%ba%e7%a9%b4%e7%9a%84%e5%94%af%e4%b8%80%e9%99%b7%e9%98%b1%e4%ba%8c","status":"publish","type":"post","link":"http:\/\/www.cailiaoniu.com\/?p=113618","title":{"rendered":"Nano Lett. \u6742\u5316\u659c\u65b9\u6676\u7cfbCH3NH3PbI3\u9499\u949b\u77ff\u5149\u751f\u7a7a\u7a74\u7684\u552f\u4e00\u9677\u9631\u4e8c\u805a\u4f53\u72b6\u6001\uff1a\u8bc6\u522b\u3001\u8d77\u6e90\u53ca\u610f\u4e49"},"content":{"rendered":"

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

\u57fa\u4e8e\u6709\u673a-\u65e0\u673a\u5364\u5316\u7269\u7684\u9499\u949b\u77ff\u6750\u6599\uff0c\u4f8b\u5982CH3<\/sub>NH3<\/sub>PbI3<\/sub>\uff0c\u4f5c\u4e3a\u65b0\u578b\u7684\u56fa\u6001\u592a\u9633\u80fd\u7535\u6c60\u5149\u6536\u96c6\u5668\uff0c\u5c55\u73b0\u4e86\u4f18\u5f02\u7684\u529f\u7387\u8f6c\u6362\u6548\u7387\uff08PCE\uff09\u5e76\u5f15\u8d77\u5927\u5bb6\u7684\u5e7f\u6cdb\u5173\u6ce8\u3002\u9499\u949b\u77ff\u5149\u7535\u6750\u6599\u7684\u4f18\u5f02\u6027\u80fd\u53ef\u5f52\u56e0\u4e8e\u6709\u673a\u548c\u65e0\u673a\u534a\u5bfc\u4f53\u4f18\u70b9\u7684\u7efc\u5408\u4f53\u73b0\uff0c\u5305\u62ec\u7a84\u4e14\u53ef\u8c03\u63a7\u7684\u5e26\u9699\uff0c\u4f4e\u7684\u8f7d\u6d41\u5b50\u590d\u5408\u7387\uff0c\u5927\u7684\u5149\u5438\u6536\u6548\u7387\uff0c\u9ad8\u7684\u8f7d\u6d41\u5b50\u8fc1\u79fb\u7387\u7b49\u3002\u7279\u522b\u662f\u8f7d\u6d41\u5b50\u4f18\u5f02\u7684\u8fc1\u79fb\u7387\u548c\u5b9e\u9a8c\u89c2\u5bdf\u5230\u7684\u957f\u7684\u8fc1\u79fb\u8ddd\u79bb\u5728\u5f88\u5927\u7a0b\u5ea6\u4e0a\u63d0\u5347\u4e86\u6750\u6599\u7684\u6027\u80fd\u3002\u56e0\u6b64\uff0c\u63ed\u793a\u8f7d\u6d41\u5b50\u5982\u5149\u751f\u7a7a\u7a74\u7684\u56fa\u6709\u7279\u6027\u548c\u8fc1\u79fb\u884c\u4e3a\u5bf9\u4e8e\u63d0\u9ad8CH3<\/sub>NH3<\/sub>PbI3<\/sub>\u9499\u949b\u77ff\u4e2d\u7684\u5149\u7535\u8f6c\u6362\u6548\u7387\u975e\u5e38\u91cd\u8981\u3002\u4f46\u662f\uff0c\u76ee\u524d\u539f\u5b50\u5c42\u9762\u4e0a\u5bf9CH3<\/sub>NH3<\/sub>PbI3<\/sub>\u9499\u949b\u77ff\u6750\u6599\u4e2d\u5149\u751f\u8f7d\u6d41\u5b50\u7684\u8ba4\u8bc6\u975e\u5e38\u6709\u9650\u3002<\/p>\n

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

\u8fd1\u65e5\uff0c\u534e\u4e1c\u7406\u5de5\u5927\u5b66\u526f\u6559\u6388\u526f\u6559\u6388\u3001\u80e1\u57f9\u541b\u6559\u6388\uff08\u5171\u540c\u901a\u8baf\uff09<\/strong>\u7b49\u4eba\u57fa\u4e8e\u6742\u5316\u6cdb\u51fd\u8ba1\u7b97\u5e76\u8003\u8651\u81ea\u65cb-\u8f68\u9053\u8026\u5408\u6548\u5e94\uff0c\u8ba1\u7b97\u7814\u7a76\u4e86\u6b63\u4ea4\u6676\u7cfbCH3<\/sub>NH3<\/sub>PbI3<\/sub>\u4e2d\u5149\u751f\u7a7a\u7a74\u7684\u6027\u8d28\uff0c\u9996\u6b21\u53d1\u73b0\u4e86\u4e00\u79cd\u610f\u60f3\u4e0d\u5230\u7684\u7a7a\u7a74\u4fd8\u83b7\u65b0\u5f62\u6001\u2014I2<\/sub>–<\/sup>\uff08I\u4e8c\u805a\u4f53\uff09\uff0c\u8ba1\u7b97\u7ed3\u679c\u8868\u660e\u8fd9\u79cd\u7a7a\u7a74\u5c40\u57df\u6001\u6bd4\u79bb\u57df\u6001\u7a33\u5b9a191meV\uff1b\u540c\u65f6\uff0cI-I\u4e8c\u805a\u4f53\u7684\u5f31\u4fd8\u83b7\u80fd\u529b\u6781\u5927\u4fc3\u8fdb\u4e86\u7a7a\u7a74\u7684\u8fc1\u79fb\uff0c\u8fc1\u79fb\u80fd\u5792\u4f4e\u81f3131 meV\uff0c\u8fd9\u4e0eCH3<\/sub>NH3<\/sub>PbI3<\/sub>\u5177\u6709\u9ad8\u7684\u7a7a\u7a74\u8fc1\u79fb\u7387\u548c\u957f\u7684\u8fc1\u79fb\u8ddd\u79bb\u7ed3\u679c\u4e00\u81f4\u3002\u6b64\u5916\uff0c\u7814\u7a76\u8005\u4ece\u4ef7\u5e26\u7ec4\u6210\u3001\u7898\u9634\u79bb\u5b50\u4ef7\u6001\u548cPb-I\u5f31\u952e\u6027\u8d28\u7b49\u65b9\u9762\u5206\u6790\u4e86I\u4e8c\u805a\u4f53\u5f62\u6210\u7684\u539f\u56e0\uff0c\u5e76\u4e14\u53d1\u73b0\u5728CH3<\/sub>NH3<\/sub>PbX3<\/sub>\uff08X = Cl\uff0cBr\u548cI\uff09\u4e2d\u7a7a\u7a74\u4fd8\u83b7\u80fd\u529b\u4e0e\u7ed3\u6784\u5f62\u53d8\u80fd\u4e4b\u95f4\u5177\u6709\u5f88\u597d\u7684\u7ebf\u6027\u5173\u7cfb\u3002\u62e5\u6709\u826f\u597d\u7a7a\u7a74\u8fc1\u79fb\u80fd\u529b\u7684CH3<\/sub>NH3<\/sub>PbX3<\/sub>\u6750\u6599\u5177\u6709\u8f83\u5c0f\u7684\u7ed3\u6784\u5f62\u53d8\u80fd\u548c\u5f31\u7684\u7a7a\u7a74\u4fd8\u83b7\u80fd\u529b\u3002\u8fd9\u4e9b\u7406\u8bba\u7ed3\u679c\u6709\u52a9\u4e8e\u6211\u4eec\u53bb\u7406\u89e3\u9499\u949b\u77ff\u5149\u7535\u6750\u6599\u7279\u6027\u5e76\u8fdb\u4e00\u6b65\u4f18\u5316\/\u7b5b\u9009\u6027\u80fd\u4f18\u5f02\u7684\u9499\u949b\u77ff\u5149\u7535\u6750\u6599\u3002\u76f8\u5173\u6210\u679c\u4ee5\u9898\u4e3a\u201cUnique Trapped Dimer State of the Photogenerated Hole in Hybrid Orthorhombic CH3NH3PbI3\u00a0Perovskite: Identification, Origin, and Implications<\/strong>\u201d\u53d1\u8868\u5728\u4e86Nano Letters<\/strong>\u4e0a\u3002<\/p>\n

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

\u56fe1 <\/strong>\u5c06\u4e00\u4e2a\u5149\u751f\u7a7a\u7a74\u5f15\u5165\u5230ort-CH<\/b><\/strong>3<\/b><\/sub><\/strong>NH<\/b><\/strong>3<\/b><\/sub><\/strong>PbI<\/b><\/strong>3<\/b><\/sub><\/strong>\u9499\u949b\u77ff\u4f53\u7cfb\u4e2d\u7684\u4e0d\u540c\u7a7a\u7a74\u5c40\u57df\u72b6\u6001\u4ee5\u53ca\u5bf9\u5e94\u7684\u9759\u7535\u52bf\u56fe\u548c\u6001\u5bc6\u5ea6\u56fe<\/b><\/strong><\/p>\n

\"\"<\/p>\n

\uff08a\uff09\u662f\u7a7a\u7a74\u79bb\u57df\u6001<\/p>\n

\uff08b\uff09\u662f\u5177\u6709I-I\u4e8c\u805a\u4f53\u6784\u578b\u7684\u4e24\u4e2a\u8d64\u9053\u65b9\u5411I\u9634\u79bb\u5b50\u6355\u83b7\u7a7a\u7a74\u5f62\u6210\u7684\u5c40\u57df\u6001<\/p>\n

\uff08c\uff0cd\uff09\u5206\u522b\u662f\u5bf9\u5e94\u4e8e\uff08a\uff09\u548c\uff08b\uff09\u7684\u9759\u7535\u52bf\u56fe<\/p>\n

\uff08e\uff09\u548c\uff08f\uff09\u5206\u522b\u8868\u793a\u79bb\u57df\u6001\u548c\u7a7a\u7a74\u5c40\u57df\u6001\u7684\u6001\u5bc6\u5ea6\uff08TDOS\uff09\u56fe<\/p>\n

\u56fe2 <\/strong>ort-CH3NH3PbI3\u7684\u51e0\u4f55\u7ed3\u6784<\/b><\/strong>\u4ee5\u53ca\u5b58\u5728\u4e00\u4e2a<\/b><\/strong>\u5149\u751f\u7a7a\u7a74\u65f6<\/b><\/strong>\u5f62\u6210\u7684\u7a7a\u7a74\u5c40\u57df\u6001\u81ea\u65cb\u5bc6\u5ea6\u56fe<\/b><\/strong><\/p>\n

\"\"<\/p>\n

\uff08a\uff09CH3<\/sub>NH3<\/sub>PbI3<\/sub>\u6b63\u4ea4\u76f8\u7ed3\u6784\u7684\u4fef\u89c6\u56fe\u3002Iap<\/sub>–<\/sup>\u548cIeq<\/sub>–<\/sup>\u5206\u522b\u4ee3\u8868\u8d64\u9053\u65b9\u5411\u4e0a\u7684I\u79bb\u5b50\u548c\u9876\u90e8\u7684I\u79bb\u5b50\u3002\u56fe\u4e2d\u5c55\u793a\u4e86\u4e09\u79cd\u7a7a\u7a74\u88ab\u4f53\u7cfb\u4fd8\u83b7\u6240\u5f62\u6210\u7684I-I\u4e8c\u805a\u4f53\u65b9\u5f0f\u3002I-I\u4e8c\u805a\u4f53-1\u548cI-I\u4e8c\u805a\u4f53-2\u4e2d\u7684\u7a7a\u7a74\u5747\u5c40\u57df\u5728\u4e24\u4e2aIeq<\/sub>–<\/sup>\u4e0a\uff0c\u800cI-I\u4e8c\u805a\u4f53-3\u662f\u7531\u7a7a\u7a74\u5c40\u57df\u5728\u4e00\u4e2aIeq<\/sub>–<\/sup>\u548c\u4e00\u4e2aIap<\/sub>–<\/sup>\u4e0a\u6784\u6210<\/p>\n

\uff08b\uff09\u5c55\u793a\u4e86I-I\u4e8c\u805a\u4f53-2\u7684\u81ea\u65cb\u5bc6\u5ea6\u56fe\uff0c\u5176\u4e2d\uff0c\u7a7a\u7a74\u5c40\u57df\u5728\u4e24\u4e2aIeq<\/sub>–<\/sup>\u79bb\u5b50\u4e0a<\/p>\n

\uff08c\uff09\u8868\u793a\u7a7a\u7a74\u5c40\u57df\u5728Ieq<\/sub>–<\/sup>\u548cIap<\/sub>–<\/sup>\u4e0a\u5f62\u6210I-I\u4e8c\u805a\u4f53-3\u7ed3\u6784<\/p>\n

\u56fe3 \u7a7a\u7a74\u8fc1\u79fb\u8def\u5f84\u548c<\/b><\/strong>\u52bf\u80fd\u56fe<\/b><\/strong><\/p>\n

\"\"<\/p>\n

\uff08a\uff09\u4e09\u79cd\u7a7a\u7a74\u8fc1\u79fb\u8def\u5f84\u793a\u610f\u56fe<\/p>\n

\uff08b\uff09\u663e\u793a\u4e09\u6761\u8def\u5f84\u5bf9\u5e94\u7684\u52bf\u80fd\u53d8\u5316\u56fe<\/p>\n

\uff08c-e\uff09\u662f\u4e09\u6761\u8def\u5f84\u5bf9\u5e94\u7684\u8fc7\u6e21\u6001\u7684\u7ed3\u6784\u3002\u9ad8\u4eae\u663e\u793a\u76841\u30012\u30013\u30014\u548c5\u53f7\u5706\u7403\u4ee3\u8868I1<\/sup>\u3001I2<\/sup>\u3001I3<\/sup>\u3001I4<\/sup>\u548cI5<\/sup>\u9634\u79bb\u5b50\u3002\u84dd\u8272\u6570\u5b57\u4e3aI\u9634\u79bb\u5b50\u7684\u81ea\u65cb\u5bc6\u5ea6\u503c\u3002I\u9634\u79bb\u5b50\u95f4\u7684\u952e\u957f\u7528\u7ea2\u8272\u8868\u793a\u3002\u9ed1\u8272\u7bad\u5934\u4ee3\u8868\u7a7a\u7a74\u8fc1\u79fb\u65b9\u5411\u3002<\/p>\n

\u56fe4 <\/strong>CH<\/b><\/strong>3<\/b><\/sub><\/strong>NH<\/b><\/strong>3<\/b><\/sub><\/strong>Pb<\/b><\/strong>X<\/b><\/strong>3<\/b><\/sub><\/strong>\u00a0(X=Cl, Br, I)<\/b><\/strong>\u4e2dX<\/b><\/strong>2<\/b><\/sub><\/strong>–<\/b><\/sup><\/strong>\u4e8c\u805a\u4f53<\/b><\/strong>\u7ed3\u6784<\/b><\/strong>\u7684\u7a7a\u7a74\u4fd8\u83b7\u80fd\u529b\uff08E<\/b><\/strong>HTC<\/b><\/sub><\/strong>\uff09\u548c\u7ed3\u6784\u5f62\u53d8\u80fd\uff08E<\/b><\/strong>def<\/b><\/sub><\/strong>\uff09<\/b><\/strong>\u4e4b\u95f4\u7684<\/b><\/strong>\u7ebf\u6027\u5173\u7cfb<\/b><\/strong><\/p>\n

\"\"<\/p>\n

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

\u8be5\u7814\u7a76\u7cfb\u7edf\u5730\u9610\u91ca\u4e86CH3<\/sub>NH3<\/sub>PbI3<\/sub>\u4e2d\u5149\u751f\u7a7a\u7a74\u7684\u57fa\u672c\u7279\u5f81\u548c\u8fc1\u79fb\u65b9\u5f0f\u3002\u9996\u6b21\u53d1\u73b0\u4e86\u4e00\u79cd\u65b0\u7684\u7a7a\u7a74\u4fd8\u83b7\u6001\uff0c\u5176\u4e2d\u5149\u751f\u7a7a\u7a74\u5c40\u57df\u5728I-I\u4e8c\u805a\u4f53\u4e0a\u5f62\u6210I2<\/sub>–<\/sup>\u7a7a\u7a74\u4fd8\u83b7\u6001\uff0c\u8fd9\u79cd\u5c40\u57df\u6001\u6bd4\u7a7a\u7a74\u79bb\u57df\u6001\u66f4\u7a33\u5b9a\u3002\u5206\u6790\u8868\u660eI\u4e8c\u805a\u4f53\u5bf9\u4e8e\u4fc3\u8fdbCH3<\/sub>NH3<\/sub>PbI3<\/sub>\u6b63\u4ea4\u4e2d\u7a7a\u7a74\u8fc1\u79fb\u662f\u5177\u6709\u72ec\u7279\u610f\u4e49\u7684\u3002\u8be5\u9879\u5de5\u4f5c\u4e3a\u7406\u89e3\u548c\u6539\u8fdbCH3<\/sub>NH3<\/sub>PbI3<\/sub>\u9499\u949b\u77ff\u5149\u7535\u6750\u6599\u63d0\u4f9b\u4e86\u4e00\u79cd\u65b0\u7684\u8ba4\u8bc6\u548c\u89c1\u89e3\u3002<\/p>\n

\u6587\u732e\u94fe\u63a5\uff1a<\/strong>Unique Trapped Dimer State of the Photogenerated Hole in Hybrid Orthorhombic CH3<\/sub>NH3<\/sub>PbI3 <\/sub>Perovskite: Identification, Origin, and Implications<\/a>\uff08Nano Lett.,2017,DOI:10.1021\/acs.nanolett.7b03885\uff09<\/p>\n

\u672c\u6587\u7531\u6750\u6599\u4eba\u65b0\u80fd\u6e90\u524d\u7ebfAllen\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\u3002<\/p>\n

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