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e\uff0cf\uff09MA+<\/sup>\uff08e\uff09\u548cFA+<\/sup>\uff08f\uff09\u7684\u5316\u5b66\u952e\u53ca\u5176\u5171\u4ef7\u952e\u5f3a\u5ea6\uff0c\u5176\u503c\u53ef\u4ece\u952e\u65c1\u7684\u6570\u5b57\u4e2d\u770b\u51fa\u3002\u5728\u53bb\u8d28\u5b50\u5316\u8fc7\u7a0b\u4e2d\u65ad\u88c2\u7684\u5316\u5b66\u952e\u7531\u7ea2\u8272\u7bad\u5934\u6807\u51fa\u3002<\/p>\n \u56fe<\/b><\/strong>4<\/b><\/strong>\u00a0<\/b><\/strong>\u4ee52D\u6750\u6599\u4e3a\u63a9\u6a21\u7684\u9499\u949b\u77ff\u7eb3\u7c73\u7247\u7684\u56fe\u6848\u8bbe\u8ba1\u548c<\/b><\/strong>\u5e73\u9762\u578b<\/b><\/strong>\u5f02\u8d28\u7ed3<\/b><\/strong> a-c\uff09\u5206\u522b\u4f7f\u7528\u77f3\u58a8\u70ef\uff08a\uff09\u3001MoS2<\/sub>\uff08b\uff09\u548c\u6761\u7eb9\u56fe\u6848\u7684h-BN\uff08c\uff09\u4f5c\u4e3a\u63a9\u6a21\uff0c\u5e73\u9762\u578bPbI2<\/sub>\/MAPbI3<\/sub>\u5f02\u8d28\u7ed3\u7684\u5149\u5b66\u56fe\u50cf\uff08\u9876\u90e8\uff09\u548c\u5149\u81f4\u53d1\u5149\u56fe\uff08\u5e95\u90e8\uff09\u3002 PbI2<\/sub>\/MAPbI3<\/sub>\u7eb3\u7c73\u7247\u7684\u8f6e\u5ed3\u7528\u7ea2\u8272\u865a\u7ebf\u52fe\u52d2\u51fa\u8f6e\u5ed3\uff0c\u800c\u77f3\u58a8\u70ef\u3001MoS2<\/sub>\u548c\u56fe\u6848\u5316\u7684h-BN\u7528\u767d\u8272\u865a\u7ebf\u52fe\u52d2\u51fa\u8f6e\u5ed3\u3002\u663e\u793a\u4e86\u5728488 nm\u6fc0\u5149\u7684\u6fc0\u53d1\u4e0b\u5149\u81f4\u53d1\u5149\u3002\u6bd4\u4f8b\u5c3a\uff1a5 \u00b5m\u3002<\/p>\n d\uff09\uff08a\uff0cb\u548cc\uff09\u4e2d\u663e\u793a\u7684\u6837\u54c1\u7684\u5149\u81f4\u53d1\u5149\u5149\u8c31\uff0c\u865a\u7ebf\u4e3a\u88ab2D\u6750\u6599\u8986\u76d6\u7684PbI2<\/sub>\u533a\u57df\uff08\uff0c\u5b9e\u7ebf\u4e3a\u66b4\u9732\u7684PbI2<\/sub>\u533a\u57df\u8f6c\u6362\u7684MAPbI3<\/sub>\uff08\uff09\uff08\u77f3\u58a8\u70ef\uff1a\u6a59\u8272\u7ebf\uff1bMoS2<\/sub>\uff1a\u7eff\u8272\u7ebf\uff1bh-BN\uff0c\u7d2b\u8272\u7ebf\uff09\u3002\u6d4b\u91cf\u7684\u79ef\u5206\u65f6\u95f4MAPbI3<\/sub>\u4e3a0.001 s\uff0cPbI2<\/sub>\u4e3a2 s\uff0c\u5e76\u4e14PbI2<\/sub>\u7684\u5149\u81f4\u53d1\u5149\u5f3a\u5ea6\u90fd\u88ab\u653e\u5927\u4e8650\u500d\u3002\u4e3a\u4e86\u65b9\u4fbf\u5bf9\u6bd4\uff0c\u6240\u6709\u7684\u66f2\u7ebf\u90fd\u88ab\u504f\u79fb\u3002<\/p>\n \u56fe<\/b><\/strong>5<\/b><\/strong>\u00a0<\/b><\/strong>\u9499\u949b\u77ff\u7eb3\u7c73\u7247\u548cMoS<\/b><\/strong>2<\/b><\/sub><\/strong>\u8584\u7247\u7684\u5782\u76f4<\/b><\/strong>\u578b<\/b><\/strong>\u5f02\u8d28\u7ed3<\/b><\/strong> a,b\uff09\u7531MAPbI3<\/sub>\u7eb3\u7c73\u7247\uff08\u767d\u8272\u865a\u7ebf\uff09\u90e8\u5206\u8986\u76d6\u6709MoS2<\/sub>\u8584\u7247\uff08\u9ed1\u8272\u865a\u7ebf\uff09\u5f62\u6210\u7684\u5782\u76f4\u578b\u5f02\u8d28\u7ed3\u7684a\uff09\u5149\u5b66\u56fe\u50cf\u548cb\uff09\u5149\u81f4\u53d1\u5149\u56fe\uff08\u79ef\u5206\u5149\u8c31\u4e2d\u5fc3\u4e3a~750\u00a0nm\uff09\uff1b\u6bd4\u4f8b\u5c3a\uff1a5 \u00b5m\u3002<\/p>\n c\uff09MAPbI3<\/sub>\u7eb3\u7c73\u7247\uff08\u7ea2\u7ebf\uff09\u3001\u5355\u5c42MoS2<\/sub>\uff08\u9ed1\u7ebf\uff09\u548cMoS2<\/sub>\/MAPbI3<\/sub>\u5f02\u8d28\u7ed3\uff08\u7eff\u7ebf\uff09\u7684\u5149\u81f4\u53d1\u5149\u5149\u8c31\uff0c\u79ef\u5206\u65f6\u95f4\u8bbe\u7f6e\u4e3a0.004 s\u3002\u4e3a\u4fbf\u4e8e\u5bf9\u6bd4\uff0c\u5355\u5c42MoS2<\/sub>\u7684PL\u5f3a\u5ea6\u653e\u5927\u4e86200\u500d\u3002<\/p>\n d\uff09\u5728~750nm\u6ce2\u957f\u5904\uff0cMAPbI3<\/sub>\u7eb3\u7c73\u7247\uff08\u7ea2\u7ebf\uff09\u548cMoS2<\/sub>\/MAPbI3<\/sub>\u5f02\u8d28\u7ed3\uff08\u7eff\u7ebf\uff09\u7684\u65f6\u95f4\u5206\u8fa8\u5149\u81f4\u53d1\u5149\u5149\u8c31\u3002<\/p>\n e\uff09DFT\u8ba1\u7b97\u7684MoS2<\/sub>\/MAPbI3<\/sub>\u5f02\u8d28\u7ed3\u7684\u80fd\u5e26\u6392\u5217\uff0c\u5176\u4e2d\u8003\u8651\u4e86MAPbI3<\/sub>\u7684\u4e24\u4e2a\u4e0d\u540c\u7684\u8868\u9762\u7aef\u70b9\uff08MX2<\/sub>\u00a0= PbI2<\/sub>\u548cAX = MAI\uff09\u3002\u5e73\u677f\u6a21\u578b\u7531\u516d\u5c42\u7ec4\u6210\uff0c\u76f8\u5f53\u4e8e3-4 nm\u539a\u7684\u7eb3\u7c73\u7247\u3002\u56fe\u4e2d\u4ec5\u663e\u793a\u5176\u4e2d\u7684\u56db\u4e2a\u5c42\u3002VBMs\u7684\u4f4d\u7f6e\u662f\u76f8\u5bf9\u4e8e\u771f\u7a7a\u5ea6\u786e\u5b9a\u7684DFT\u8ba1\u7b97\u503c\uff1bCBMs\u7684\u4f4d\u7f6e\u662f\u7531\uff08c\uff09\u4e2d\u6d4b\u91cf\u7684PL\u7684\u5e26\u9699\u5f97\u51fa\u7684\u3002<\/p>\n \u3010<\/b><\/strong>\u5c0f\u7ed3<\/b><\/strong>\u3011<\/b><\/strong><\/p>\n \u901a\u8fc7\u4e24\u6b65\u6cd5\uff0c\u56e2\u961f\u53ef\u4ee5\u5728\u5404\u79cd\u57fa\u5e95\u4e0a\u751f\u4ea7\u5927\u91cf\u5177\u6709\u89c4\u5219\u516d\u8fb9\u5f62\u5f62\u72b6\u3001\u4e0d\u540c\u539a\u5ea6\u548c\u53ef\u8c03\u6210\u5206\u7684\u9499\u949b\u77ff\u7eb3\u7c73\u7247\u3002\u4e0e\u5927\u591a\u6570\u4f20\u7edf\u76842D\u534a\u5bfc\u4f53\u76f8\u6bd4\uff0c\u8fd9\u4e9b\u9499\u949b\u77ff\u7eb3\u7c73\u7247\u5177\u6709\u4f18\u5f02\u7684\u5149\u5b66\u6027\u80fd\uff0c\u5982\u8d85\u9ad8\u7684\u5149\u81f4\u53d1\u5149\u6548\u7387\u548c\u5149\u5b66\u589e\u76ca\uff0c\u4ee5\u53ca\u901a\u8fc7\u8c03\u6574\u6210\u5206\u548c\u539a\u5ea6\u6765\u6539\u53d8\u5e26\u9699\u7684\u53ef\u80fd\u6027\u3002\u7814\u7a76\u8fd8\u8bc1\u660e\uff0c\u5728\u8f6c\u5316\u4e3a\u9499\u949b\u77ff\u4e4b\u524d\uff0c\u5355\u4e2a\u9499\u949b\u77ff\u7eb3\u7c73\u7247\u53ef\u4ee5\u4f7f\u7528\u75312D\u6750\u6599\u5236\u6210\u7684\u63a9\u6a21\uff08\u5982\u77f3\u58a8\u70ef\u3001h-BN\u6216MoS2<\/sub>\uff09\u6765\u8986\u76d6PbI2<\/sub>\u6a21\u677f\uff0c\u4ece\u800c\u81ea\u7531\u5730\u7ed8\u5236\u56fe\u6848\u3002\u540c\u65f6\uff0c\u56e2\u961f\u5b9e\u73b0\u4e86\u591a\u79cd\u5e73\u9762\u578b\u5f02\u8d28\u7ed3\u3002\u6b64\u5916\uff0c\u901a\u8fc7\u7ed3\u5408\u9499\u949b\u77ff\u548c\u5176\u4ed62D\u6750\u6599\uff0c\u8fd8\u5236\u4f5c\u4e86\u5782\u76f4\u578b\u5f02\u8d28\u7ed3\uff0c\uff0c\u5c42\u95f4\u7684\u754c\u9762\u8026\u5408\u4f7f\u5149\u5b66\u548c\u7535\u8377\u4f20\u8f93\u7279\u6027\u7684\u64cd\u4f5c\u6210\u4e3a\u53ef\u80fd\u3002\u6742\u5316\u9499\u949b\u77ff\u7684\u7075\u6d3b\u8bbe\u8ba1\u53ca\u5176\u4e0e\u591a\u79cd2D\u6750\u6599\u7684\u7ed3\u5408\uff0c\u4e3a\u57282D\u5bb6\u65cf\u4e2d\u53d1\u73b0\u65b0\u7684\u6027\u80fd\u548c\u529f\u80fd\u63d0\u4f9b\u4e86\u8bb8\u591a\u53ef\u80fd\u6027\u3002\u56e0\u6b64\uff0c\u56e2\u961f\u7684\u7814\u7a76\u7ed3\u679c\u4e3a2D\u6750\u6599\u7684\u7814\u7a76\u548c\u63a7\u5236\u5f00\u8f9f\u4e86\u4e00\u6761\u6709\u5438\u5f15\u529b\u7684\u9014\u5f84\uff0c\u540c\u65f6\u4e5f\u62d3\u5c55\u4e86\u9499\u949b\u77ff\u6750\u6599\u5728\u53ef\u8c03\u8c10\u7eb3\u7c73\u7ea7\u5149\u7535\u5668\u4ef6\u4e2d\u7684\u65b0\u5e94\u7528\u9886\u57df\u3002<\/p>\n \u6587\u732e\u94fe\u63a5\uff1a<\/b><\/strong>Engineering the Phases and Heterostructures of Ultrathin Hybrid Perovskite Nanosheets<\/u><\/a>\uff08Adv. Mater.\uff0c2020\uff0cDOI:10.1002\/adma.202002392\uff09<\/p>\n \u672c\u6587\u7531\u6728\u6587\u97ec<\/b><\/strong>\u7ffb\u8bd1\uff0c\u6750\u6599\u725b\u6574\u7406\u7f16\u8f91\u3002<\/p>\n<\/p>\n
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