{"id":159269,"date":"2018-11-19T08:00:39","date_gmt":"2018-11-19T00:00:39","guid":{"rendered":"\/\/m.iemloyee.com\/?p=159269"},"modified":"2018-11-18T22:51:57","modified_gmt":"2018-11-18T14:51:57","slug":"j-am-chem-soc-%e5%8d%a4%e5%8c%96%e7%89%a9%e7%a9%ba%e4%bd%8d%e6%b0%a7%e5%8c%96%e6%80%81%e6%8e%a7%e5%88%b6%e9%92%99%e9%92%9b%e7%9f%bf%e4%b8%ad%e7%9a%84%e7%94%b5%e8%8d%b7%e5%a4%8d%e5%90%88","status":"publish","type":"post","link":"\/\/m.iemloyee.com\/?p=159269","title":{"rendered":"J. Am. Chem. Soc. : \u5364\u5316\u7269\u7a7a\u4f4d\u6c27\u5316\u6001\u63a7\u5236\u9499\u949b\u77ff\u4e2d\u7684\u7535\u8377\u590d\u5408"},"content":{"rendered":"
\u3010\u5f15\u8a00\u3011<\/strong><\/p>\n \n \u5728\u6eb6\u6db2\u52a0\u5de5\u7684\u9499\u949b\u77ff\u8584\u819c\u4e2d\uff0c\u56fa\u6709\u7f3a\u9677\u96be\u4ee5\u907f\u514d\u3002\u9499\u949b\u77ff\u4e2d\u7684\u7f3a\u9677\u4e0e\u8bf8\u5982\u66b4\u9732\u4e8e\u5149\u3001\u70ed\u6216\u6e7f\u6c14\u4e0b\u7684\u4e0d\u7a33\u5b9a\u6027\u4ee5\u53ca\u7531\u4e8e\u79bb\u5b50\u8fc1\u79fb\u5f15\u8d77\u7684\u7535\u6d41-\u7535\u538b\u6ede\u540e\u7b49\u6311\u6218\u6027\u95ee\u9898\u76f8\u5173\u3002\u7814\u7a76\u4eba\u5458\u5bf9\u9499\u949b\u77ff\u6750\u6599\u4e2d\u7684\u7535\u8377\u8f7d\u6d41\u5b50\u6355\u83b7\u548c\u5f1b\u8c6b\u8fc7\u7a0b\u8fdb\u884c\u4e86\u7814\u7a76\u3002\u975e\u8f90\u5c04\u7535\u5b50-\u7a7a\u7a74\u590d\u5408\u5728\u9499\u949b\u77ff\u4e2d\u975e\u5e38\u6162\uff0c\u4f8b\u5982\u5728MAPbI3<\/sub>\u4e2d\u7ea6\u4e3a\u51e0\u767e\u7eb3\u79d2\u3002\u7136\u800c\uff0c\u7f3a\u9677\u7684\u4f5c\u7528\uff0c\u7279\u522b\u662f\u5176\u5bf9\u6d89\u53ca\u7535\u8377\u6355\u83b7\u548c\u590d\u5408\u7684\u8f7d\u6d41\u5b50\u52a8\u529b\u5b66\u7684\u5f71\u54cd\uff0c\u5c1a\u672a\u5f97\u5230\u8db3\u591f\u8be6\u7ec6\u7684\u7814\u7a76\u3002\u76ee\u524d\u666e\u904d\u8ba4\u4e3a\u9499\u949b\u77ff\u6750\u6599\u5177\u6709\u8f83\u597d\u7684\u7f3a\u9677\u8010\u53d7\u6027\u3002\u7b2c\u4e00\u6027\u539f\u7406\u8ba1\u7b97\u8868\u660e\uff0c\u5f53\u6d89\u53ca\u8f7d\u6d41\u5b50\u590d\u5408\u65f6\uff0c\u9499\u949b\u77ff\u6750\u6599\u4e2d\u7684\u5927\u591a\u6570\u70b9\u7f3a\u9677\u662f\u6d45\u5c42\u548c\u826f\u6027\u7684\uff0c\u800c\u5728\u8fd9\u4e9b\u6750\u6599\u4e2d\u96be\u4ee5\u5f62\u6210\u6df1\u5c42\u7f3a\u9677\u3002\u7136\u800c\uff0c\u6700\u8fd1\u7684\u5b9e\u9a8c\u63ed\u793a\u4e86\u4e00\u4e9b\u7f3a\u9677\u7684\u610f\u5916\u4f5c\u7528\u3002\u4e0d\u540c\u7684\u5b9e\u9a8c\u548c\u7406\u8bba\u89c2\u5bdf\u63d0\u51fa\u4e86\u5173\u4e8e\u5e26\u7535\u7f3a\u9677\u5728\u9499\u949b\u77ff\u592a\u9633\u80fd\u7535\u6c60\u4e2d\u975e\u8f90\u5c04\u7535\u8377\u91cd\u7ec4\u4e2d\u7684\u4f5c\u7528\u7684\u91cd\u8981\u95ee\u9898\uff0c\u9700\u8981\u8be6\u7ec6\u7684\u7406\u8bba\u7814\u7a76\u3002<\/p>\n \u3010\u6210\u679c\u7b80\u4ecb\u3011<\/strong><\/p>\n \n \u8fd1\u65e5\uff0c\u7f8e\u56fd\u5357\u52a0\u5dde\u5927\u5b66Oleg V. Prezhdo\u6559\u6388\u3001\u6e56\u5357\u519c\u4e1a\u5927\u5b66\u6c64\u5251\u950b\u6559\u6388(\u5171\u540c\u901a\u8baf\u4f5c\u8005)\u7b49<\/strong>\u901a\u8fc7\u4ece\u5934\u7b97\u975e\u7edd\u70ed\u5206\u5b50\u52a8\u529b\u5b66\u8bc1\u5b9e\u9499\u949b\u77ff\u4e2d\u7684\u7535\u8377\u590d\u5408\u5bf9\u5364\u7d20\u7a7a\u4f4d\u7684\u7535\u8377\u6001\u6781\u5176\u654f\u611f\uff0c\u5e76\u5728J. Am. Chem. Soc.<\/strong>\u4e0a\u53d1\u8868\u4e86\u9898\u4e3a\u201cControl of Charge Recombination in Perovskites by Oxidation State of Halide Vacancy<\/strong>\u201d\u7684\u7814\u7a76\u8bba\u6587\u3002MAPbI3<\/sub>\u4e2d\u7f3a\u5931\u7684\u7898\u9634\u79bb\u5b50\u5bf9\u7535\u8377\u635f\u5931\u51e0\u4e4e\u6ca1\u6709\u5f71\u54cd\u3002\u7136\u800c\uff0c\u5f53\u7a7a\u4f4d\u88ab\u8fd8\u539f\u65f6\uff0c\u590d\u5408\u52a0\u901f\u8fbe2\u4e2a\u6570\u91cf\u7ea7\u3002\u52a0\u901f\u53d1\u751f\u5e94\u5f52\u56e0\u4e8e\u5355\u4e00\u8fd8\u539f\u7a7a\u4f4d\u4e2d\u5f62\u6210\u6df1\u5c42\u7a7a\u7a74\u9631\u4ee5\u53ca\u53cc\u91cd\u8fd8\u539f\u7a7a\u4f4d\u7684\u6df1\u5c42\u548c\u6d45\u5c42\u7a7a\u7a74\u9631\u3002\u6d45\u5c42\u7a7a\u7a74\u6d89\u53caPb-I\u6676\u683c\u7684\u663e\u8457\u91cd\u6392\u5e76\u4ea7\u751f\u65b0\u5316\u5b66\u7269\u8d28\uff1a\u7a7a\u4f4d\u7535\u8377\u7ed3\u5408\u7684Pb-Pb\u4e8c\u805a\u4f53\u548c\u672a\u914d\u4f4d\u7684\u7898\u952e\u3002\u5355\u4e00\u8fd8\u539f\u7898\u5316\u7269\u7a7a\u4f4d\u7684\u7a7a\u7a74\u6355\u83b7\u4e0e\u81ea\u7531\u7535\u5b50\u548c\u7a7a\u7a74\u590d\u5408\u540c\u65f6\u53d1\u751f\u53ef\u52a0\u901f\u7535\u8377\u635f\u59315\u500d\u3002\u53cc\u91cd\u8fd8\u539f\u7a7a\u4f4d\u5386\u7ecf\u65e0\u673a\u7406\u7a7a\u7a74\u3001\u6d45\u9631\u3001\u6df1\u9631\u548c\u81ea\u7531\u7535\u5b50\uff0c\u53ef\u4f7f\u590d\u5408\u52a0\u901f50\u500d\u3002\u8be5\u7814\u7a76\u8868\u660e\uff0c\u7898\u9634\u79bb\u5b50\u7a7a\u4f4d\u5bf9\u6027\u80fd\u6709\u76ca\uff0c\u56e0\u4e3a\u5176\u5f15\u8d77\u7535\u8377\u8f7d\u4f53\u5bff\u547d\u7684\u5fae\u5c0f\u53d8\u5316\uff0c\u540c\u65f6\u589e\u52a0\u7535\u8377\u8f7d\u6d41\u5b50\u6d53\u5ea6\u3002\u4f46\u662f\uff0c\u5e94\u8be5\u907f\u514d\u4e2d\u6027\u7898\u548c\u7898\u9633\u79bb\u5b50\u7a7a\u4f4d\u3002\u901a\u8fc7\u6a21\u62df\u5f97\u5230\u7684\u5173\u4e8e\u7535\u8377\u8f7d\u6d41\u5b50\u6355\u83b7\u548c\u5f1b\u8c6b\u673a\u5236\u7684\u6df1\u5165\u7406\u89e3\u5bf9\u4e8e\u9ad8\u6548\u5149\u7535\u5e94\u7528\u662f\u5fc5\u4e0d\u53ef\u5c11\u7684\u3002<\/p>\n \u3010\u56fe\u6587\u7b80\u4ecb\u3011<\/strong> a) \u5177\u6709IV<\/sub>-1<\/sup>\u7f3a\u9677MAPbI3<\/sub>\u4e2d\u7684\u7535\u8377\u8f7d\u4f53\u6355\u83b7\u3001\u9003\u9038\u548c\u5f1b\u8c6b\u8fc7\u7a0b\uff0c\u5176\u4e2d\u84dd\u8272\u7403\u4ee3\u8868\u7a7a\u7a74\uff0c\u7ea2\u8272\u7403\u4ee3\u8868\u7535\u5b50\uff0c\u865a\u7ebf\u8868\u793a\u8d39\u7c73\u80fd\u7ea7(\u4e0b\u540c)\uff1b \u56fe2 \u7528\u4e8e\u8ba1\u7b97\u7684MAPbI3<\/sub>\u7ed3\u6784<\/strong><\/p>\n a) \u539f\u59cbMAPbI3<\/sub>\u7684\u4f18\u5316\u7ed3\u6784\uff1b \u56fe3 \u539f\u59cb\u548c\u7f3a\u9677MAPbI3<\/sub>\u7684\u6295\u5f71\u6001\u5bc6\u5ea6<\/strong><\/p>\n a) \u539f\u59cbMAPbI3<\/sub>\u7684\u6295\u5f71\u6001\u5bc6\u5ea6(pDOS)\uff0c\u5185\u63d2\u4e3a\u5e26\u8fb9\u548c\u9677\u9631\u6001\u7684\u7535\u8377\u5bc6\u5ea6(\u4e0b\u540c)\uff1b \u56fe4 \u539f\u59cb\u548c\u7f3a\u9677MAPbI3<\/sub>\u8f7d\u6d41\u5b50\u6355\u83b7\u548c\u5f1b\u8c6b\u4e2d\u6d89\u53ca\u58f0\u5b50\u6a21\u5f0f\u7684\u8c31\u5bc6\u5ea6\u8868\u5f81<\/strong><\/p>\n a) \u539f\u59cbMAPbI3<\/sub>\u4e2d\u7684\u8f7d\u6d41\u5b50\u6355\u83b7\u548c\u5f1b\u8c6b\u4e2d\u6d89\u53ca\u7684\u58f0\u5b50\u6a21\u5f0f\u7684\u8c31\u5bc6\u5ea6\u8868\u5f81\uff1b \u56fe5 \u7535\u8377\u6355\u83b7\u548c\u590d\u5408\u52a8\u529b\u5b66<\/strong><\/p>\n \u539f\u59cb\u548c\u7f3a\u9677MAPbI3<\/sub>\u4e2d\u6d89\u53ca\u7535\u8377\u6355\u83b7\u548c\u91cd\u7ec4\u7684\u5173\u952e\u6001\u7fa4\u4f53\u7684\u6f14\u53d8\u3002IV<\/sub>-1<\/sup>\u7f3a\u9677\u5728\u5e26\u9699\u5185\u90e8\u6ca1\u6709\u4ea7\u751f\u9677\u9631\u72b6\u6001\uff0c\u5982\u56fe3\u6240\u793a\uff0c\u5e76\u4e14\u4ec5\u7565\u5fae\u52a0\u901f\u590d\u5408\u3002\u5728IV<\/sub>\u7cfb\u7edf\u4e2d\u590d\u5408\u52a0\u901f\u56e0\u5b50\u4e3a5\uff0c\u5728IV<\/sub>+1<\/sup>\u7cfb\u7edf\u4e2d\u52a0\u901f\u56e0\u5b50\u4e3a50\u3002<\/p>\n \u3010\u5c0f\u7ed3\u3011<\/strong>
\n \u56fe1 \u539f\u59cb\u548c\u7f3a\u9677MAPbI3<\/sub>\u4e2d\u7684\u7535\u8377\u8f7d\u4f53\u6355\u83b7\u3001\u9003\u9038\u548c\u5f1b\u8c6b\u8fc7\u7a0b<\/strong><\/p>\n
<\/p>\n
\n b) \u5177\u6709IV<\/sub>\u7f3a\u9677MAPbI3<\/sub>\u4e2d\u7684\u7535\u8377\u8f7d\u4f53\u6355\u83b7\u3001\u9003\u9038\u548c\u5f1b\u8c6b\u8fc7\u7a0b\uff1b
\n c) \u5177\u6709IV<\/sub>+1<\/sup>\u7f3a\u9677MAPbI3<\/sub>\u4e2d\u7684\u7535\u8377\u8f7d\u4f53\u6355\u83b7\u3001\u9003\u9038\u548c\u5f1b\u8c6b\u8fc7\u7a0b\u3002<\/p>\n
<\/p>\n
\n b) \u5177\u6709IV<\/sub>-1<\/sup>\u7f3a\u9677MAPbI3<\/sub>\u7684\u4f18\u5316\u7ed3\u6784\uff1b
\n c) \u5177\u6709IV<\/sub>\u7f3a\u9677MAPbI3<\/sub>\u7684\u4f18\u5316\u7ed3\u6784\uff1b
\n d) \u5177\u6709IV<\/sub>+1<\/sup>\u7f3a\u9677MAPbI3<\/sub>\u7684\u4f18\u5316\u7ed3\u6784\uff1b
\n e) \u7a7a\u4f4d\u4f4d\u70b9\u5468\u56f4Pb-Pb\u8ddd\u79bb\u7684\u53d8\u5316\uff0c\u5176\u4e2d\u6570\u5b57\u8868\u793a\u5206\u5b50\u52a8\u529b\u5b66\u8f68\u9053\u5178\u578b\u5e73\u5747Pb-Pb\u8ddd\u79bb\uff0c\u62ec\u53f7\u4e2d\u6570\u5b57\u8868\u793a\u4f18\u5316\u7684\u57fa\u6001\u7ed3\u6784\u4e2d\u7684Pb-Pb\u8ddd\u79bb\u3002<\/p>\n
<\/p>\n
\n b) \u5177\u6709IV<\/sub>-1<\/sup>\u7f3a\u9677MAPbI3<\/sub>\u7684\u6295\u5f71\u6001\u5bc6\u5ea6(pDOS)\uff1b
\n c) \u5177\u6709IV<\/sub>\u7f3a\u9677MAPbI3<\/sub>\u7684\u6295\u5f71\u6001\u5bc6\u5ea6(pDOS)\uff1b
\n d) \u5177\u6709IV<\/sub>+1<\/sup>\u7f3a\u9677MAPbI3<\/sub>\u7684\u6295\u5f71\u6001\u5bc6\u5ea6(pDOS)\u3002<\/p>\n
<\/p>\n
\n b) \u5177\u6709IV<\/sub>-1<\/sup>\u7f3a\u9677MAPbI3<\/sub>\u4e2d\u7684\u8f7d\u6d41\u5b50\u6355\u83b7\u548c\u5f1b\u8c6b\u4e2d\u6d89\u53ca\u7684\u58f0\u5b50\u6a21\u5f0f\u7684\u8c31\u5bc6\u5ea6\u8868\u5f81\uff1b
\n c) \u5177\u6709IV<\/sub>\u7f3a\u9677MAPbI3<\/sub>\u4e2d\u7684\u8f7d\u6d41\u5b50\u6355\u83b7\u548c\u5f1b\u8c6b\u4e2d\u6d89\u53ca\u7684\u58f0\u5b50\u6a21\u5f0f\u7684\u8c31\u5bc6\u5ea6\u8868\u5f81\uff1b
\n d) \u5177\u6709IV<\/sub>+1<\/sup>\u7f3a\u9677MAPbI3<\/sub>\u4e2d\u7684\u8f7d\u6d41\u5b50\u6355\u83b7\u548c\u5f1b\u8c6b\u4e2d\u6d89\u53ca\u7684\u58f0\u5b50\u6a21\u5f0f\u7684\u8c31\u5bc6\u5ea6\u8868\u5f81\u3002<\/p>\n
<\/p>\n
\n \u7efc\u4e0a\u6240\u8ff0\uff0c\u4f5c\u8005\u8bc1\u5b9eMAPbI3<\/sub>\u9499\u949b\u77ff\u4e2d\u7898\u7a7a\u4f4d\u7f3a\u9677\u7684\u6c27\u5316\u6001\u5bf9\u7535\u8377\u8f7d\u6d41\u5b50\u6355\u83b7\u548c\u590d\u5408\u5177\u6709\u5f3a\u70c8\u5f71\u54cd\u3002\u65f6\u57df\u4ece\u5934\u7b97\u6a21\u62df\u663e\u793a\uff0c\u5728\u5b58\u5728IV<\/sub>-1<\/sup>\u7a7a\u4f4d(I–<\/sup>\u7f3a\u5931)\u7684\u60c5\u51b5\u4e0b\uff0c\u975e\u8f90\u5c04\u7535\u8377\u590d\u5408\u57fa\u672c\u4e0a\u4e0d\u53d7\u5f71\u54cd\u3002\u4e00\u65e6\u7a7a\u4f4d\u8fd8\u539f\uff0c\u7535\u8377\u635f\u5931\u6700\u591a\u53ef\u52a0\u901f2\u4e2a\u6570\u91cf\u7ea7\u3002\u8fd9\u79cd\u6548\u5e94\u662f\u7531\u4e8e\u5360\u636e\u7684\u4e2d\u95f4\u9699\u6001\u7684\u5f62\u6210\u800c\u4ea7\u751f\u7684\uff0c\u8be5\u4e2d\u95f4\u9699\u6001\u53ef\u4ee5\u6355\u83b7\u7a7a\u7a74\uff0c\u4fc3\u8fdb\u5176\u4e0e\u7535\u5b50\u7684\u91cd\u65b0\u7ed3\u5408\u3002\u4e2d\u6027\u7898\u7a7a\u4f4dIV<\/sub>\u5728CB\u9644\u8fd1\u4ea7\u751f\u6001\uff0c\u800cIV<\/sub>+1<\/sup>\u4ea7\u751f\u6d45\u5c42\u548c\u6df1\u5c42\u7a7a\u7a74\u9631\u3002\u7814\u7a76\u7ed3\u679c\u5f3a\u70c8\u8868\u660e\u9499\u949b\u77ff\u8584\u819c\u9700\u8981\u5c0f\u5fc3\u64cd\u4f5c\u4ee5\u907f\u514d\u5f62\u6210\u4e2d\u6027IV<\/sub>\u548c\u5e26\u8d1f\u7535\u8377\u7684IV<\/sub>+1<\/sup>\u7a7a\u4f4d\u3002\u5728\u9499\u949b\u77ff\u5408\u6210\u671f\u95f4\u548c\u5728\u6d89\u53ca\u7535\u8377\u6d41\u52a8\u7684\u5668\u4ef6\u64cd\u4f5c\u6761\u4ef6\u4e0b\u90fd\u4f1a\u51fa\u73b0\u8be5\u95ee\u9898\u3002\u6a21\u62df\u4e0e\u5b9e\u9a8c\u4e2d\u6240\u89c2\u5bdf\u73b0\u8c61\u4e00\u81f4\uff0cIV<\/sub>-1<\/sup>\u7a7a\u4f4d\u5bf9PCS\u6027\u80fd\u5177\u6709\u79ef\u6781\u5f71\u54cd\u3002\u6a21\u62df\u6240\u5f97\u5173\u4e8e\u7f3a\u9677\u5316\u5b66\u548c\u5149\u7269\u7406\u5b66\u7684\u6df1\u5165\u7406\u89e3\u6709\u52a9\u4e8e\u9ad8\u6548PSC\u548c\u5176\u4ed6\u76f8\u5173\u5668\u4ef6\u7684\u5f00\u53d1\u3002<\/p>\n