{"id":195880,"date":"2020-02-13T06:03:44","date_gmt":"2020-02-12T22:03:44","guid":{"rendered":"\/\/m.iemloyee.com\/?p=195880"},"modified":"2020-02-12T21:21:17","modified_gmt":"2020-02-12T13:21:17","slug":"acs-energy-letter%ef%bc%9a%e9%92%99%e9%92%9b%e7%9f%bf%e7%ba%b3%e7%b1%b3%e7%b2%92%e5%ad%90%ef%bc%88cspbbr3-ncs%ef%bc%89%e5%85%89%e5%82%ac%e5%8c%96c-c%e5%81%b6%e8%81%94%e5%8f%8d%e5%ba%94%e4%b8%ad","status":"publish","type":"post","link":"\/\/m.iemloyee.com\/?p=195880","title":{"rendered":"ACS Energy Letter\uff1a\u9499\u949b\u77ff\u7eb3\u7c73\u7c92\u5b50\uff08CsPbBr3 NCs\uff09\u5149\u50ac\u5316C-C\u5076\u8054\u53cd\u5e94\u4e2d\u7684\u8d85\u5feb\u53cd\u5e94\u673a\u7406"},"content":{"rendered":"
\u3010\u80cc\u666f\u4ecb\u7ecd\u3011<\/strong><\/p>\n \u592a\u9633\u5149\u50ac\u5316\u53cd\u5e94\u5728\u5316\u5b66\u754c\u4e00\u76f4\u5907\u53d7\u5173\u6ce8\u3002\u5728\u8fd1\u4e9b\u5e74\uff0c\u592a\u9633\u5149\u50ac\u5316\u9010\u6e10\u53d1\u5c55\u6210\u4e3a\u6709\u673a\u5408\u6210\u5316\u5b66\u6700\u91cd\u8981\u7684\u5206\u652f\u4e4b\u4e00\u3002\u901a\u5e38\uff0c\u5149\u6fc0\u53d1\u4ea7\u751f\u7535\u5b50-\u7a7a\u7a74\u5bf9\uff0c\u7136\u540e\u7535\u5b50\u5bf9\u53ef\u4ee5\u968f\u540e\u8f6c\u79fb\uff08\u7535\u5b50\/\u7a7a\u7a74\/\u80fd\u91cf\uff09\u5230\u53cd\u5e94\u7269\u4e0a\u4ee5\u5f15\u53d1\u53cd\u5e94\u3002\u968f\u540e\u7684\u7a7a\u7a74\/\u7535\u5b50\u8f6c\u79fb\u5c06\u50ac\u5316\u5242\u6062\u590d\u5230\u5176\u539f\u59cb\u72b6\u6001\uff0c\u4ece\u800c\u5b8c\u6210\u4e86\u50ac\u5316\u5faa\u73af\u3002\u5f00\u53d1\u65b0\u578b\u9ad8\u6548\u5149\u50ac\u5316\u7cfb\u7edf\u9700\u8981\u5316\u5b66\u548c\u7269\u7406\u5b66\u8bb8\u591a\u9886\u57df\u7684\u77e5\u8bc6\uff0c\u5305\u62ec\u8bbe\u8ba1\uff0c\u5408\u6210\uff0c\u8868\u5f81\u548c\u673a\u7406\u7406\u89e3\uff0c\u4ee5\u4fbf\u5c06\u592a\u9633\u80fd\u76f4\u63a5\u5f15\u5165\u6240\u9700\u7684\u4ea7\u54c1\u4e2d\u800c\u4e0d\u4f1a\u9020\u6210\u4efb\u4f55\u635f\u5931\u3002\u5bf9\u7535\u8377\u8f7d\u6d41\u5b50\u52a8\u529b\u5b66\u548c\u53cd\u5e94\u52a8\u529b\u5b66\u7684\u7406\u89e3\u4e3a\u8bbe\u8ba1\u548c\u5408\u6210\u65b0\u7cfb\u7edf\u63d0\u4f9b\u4e86\u91cd\u8981\u89c1\u89e3\u3002<\/p>\n \u8fd1\u6765\uff0c\u9499\u949b\u77ff\u578b\u7eb3\u7c73\u7c92\u5b50\uff08CsPbBr3<\/sub> NCs\uff09\u8d8a\u6765\u8d8a\u53d7\u6b22\u8fce\uff0c\u5176\u53ef\u7528\u4e8e\u50ac\u5316\u6709\u673aC-C\u952e\u6210\u952e\u4ece\u800c\u7528\u4ee5\u66ff\u4ee3\u6602\u8d35\u7684\u8d35\u91d1\u5c5e\u5206\u5b50\u50ac\u5316\u5242\uff08Ru(bpy)3<\/sub>Cl2<\/sub>\uff09\u3002\u4f7f\u7528\u9499\u949b\u77ff\u578b\u7eb3\u7c73\u7c92\u5b50\u53ef\u4ee5\u4f7f\u4ea7\u54c1\u5206\u79bb\u66f4\u5bb9\u6613\uff0c\u800c\u4e14NCs\u8868\u9762\u53ef\u4ee5\u652f\u6301\u4e0d\u540c\u7684\u50ac\u5316\u673a\u7406\uff0c\u56e0\u6b64\u63d0\u4f9b\u4e86\u4e00\u79cd\u5177\u6709\u4e0d\u540c\u53cd\u5e94\u673a\u7406\u7684\u65b0\u578b\u5149\u50ac\u5316\u5242\uff0c\u4ece\u800c\u53ef\u4ee5\u5728\u76ee\u6807\u53cd\u5e94\u4e2d\u5b9e\u73b0\u66f4\u5927\u7684\u53ef\u8c03\u6027\u3002<\/p>\n \u3010\u6210\u679c\u7b80\u4ecb\u3011<\/strong><\/p>\n \u8fd1\u671f\uff0c\u7f8e\u56fd\u56fd\u5bb6\u53ef\u518d\u751f\u80fd\u6e90\u5b9e\u9a8c\u5ba4Xihan Chen, Matt Beard\u4e0e\u5723\u5730\u4e9a\u54e5\u5dde\u7acb\u5927\u5b66\u9122\u52c7\u91c7\u7528\u539f\u4f4d\u77ac\u6001\u5438\u6536\uff08TA\uff09\u5149\u8c31\u7814\u7a76CsPbBr3<\/sub> \u7eb3\u7c73\u7c92\u5b50\u5149\u50ac\u5316\u7ecf\u5178\u7684\u919b\u03b1-\u70f7\u57fa\u5316\u53cd\u5e94\uff082-\u6eb4\u82ef\u4e59\u916e\u4e0e\u8f9b\u919b\u4e4b\u95f4\u7684\u53cd\u5e94\uff0c\u5176\u4e2d\u4e8c\u73af\u5df1\u80fa\u4e3a\u52a9\u50ac\u5316\u5242\uff0c\u4ee52,6-\u4e8c\u7532\u57fa\u5421\u5576\u4e3a\u78b1\uff09\u4e2d\u7535\u8377\u8f6c\u79fb\u548c\u53cd\u5e94\u52a8\u529b\u5b66\uff08\u56fe1\uff09\u3002\u6211\u4eec\u53d1\u73b0\u4eceCsPbBr3<\/sub> \u7eb3\u7c73\u7c92\u5b50\u52302-\u6eb4\u82ef\u4e59\u916e\u7684\u8d85\u5feb\u7535\u5b50\u8f6c\u79fb\u8fc7\u7a0b\uff0c\u4ee5\u53ca\u7a7a\u7a74\u8f6c\u79fb\u5230\u539f\u4f4d\u5f62\u6210\u7684\u70ef\u80fa\uff08\u901a\u8fc7\u4e8c\u73af\u5df1\u80fa\u548c\u8f9b\u9178\u5f62\u6210\uff09\u6216\u52a9\u50ac\u5316\u5242\u7684\u8fc7\u7a0b\u3002\u5728\u6bcf\u79cd\u60c5\u51b5\u4e0b\uff0cET\uff08\u7535\u5b50\u8f6c\u79fb\uff09\u6216HT\uff08\u7a7a\u7a74\u8f6c\u79fb\uff09\u4e4b\u540e\u5747\u9700\u7ecf\u8fc7\u7ea60.8 \/ 0. 5\u03bcs\u7684\u7535\u8377\u5206\u79bb\u65f6\u95f4\u3002\u5f62\u6210C-C\u952e\u9700\u8981\u03bcs\u7684\u7535\u8377\u5206\u79bb\u65f6\u95f4\uff0c\u56e0\u6b64\u662f\u9650\u5236\u56e0\u7d20\u3002\u9499\u949b\u77ff\u578bNC\u7684\u9ad8\u6548ET\u548cHT\u8bc1\u5b9e\u4e86\u5b83\u4eec\u5728\u6709\u673a\u5149\u50ac\u5316\u65b9\u9762\u7684\u5de8\u5927\u6f5c\u529b\uff0c\u76f8\u5173\u7814\u7a76\u53d1\u8868\u4e8eACS Energy Letter\u4e0a\u3002<\/p>\n \u3010\u56fe\u6587\u5bfc\u8bfb\u3011<\/strong><\/p>\n \u9996\u5148\u5408\u6210\u4e86\u9499\u949b\u77ff\u7eb3\u7c73\u7c92\u5b50(CsPbBr3<\/sub> NCs)\u5e76\u6d4b\u91cf\u4e86\u5176\u5149\u5b66\u6027\u8d28\u7528\u4e8e\u03b1-\u70f7\u57fa\u5316\u53cd\u5e94\uff08\u56fe\u4e00\uff09\u3002\u4e4b\u540e\u5229\u7528\u77ac\u6001\u5438\u6536\uff08TA\uff09\u5149\u8c31\u7814\u7a76\u5149\u6fc0\u53d1\u4e4b\u540e\u7684\u7535\u5b50\/\u7a7a\u7a74\u8f6c\u79fb\u5230\u53cd\u5e94\u7269\u7684\u8fc7\u7a0b\u53ca\u7535\u8377\u5206\u79bb\u65f6\u95f4\uff08\u56fe\u4e8c\uff09\uff0c\u540c\u65f6\u901a\u8fc7\u5faa\u73af\u4f0f\u5b89\u6cd5\u6d4b\u5b9a\u5f97\u5230\u53cd\u5e94\u7269\u7684\u8fd8\u539f\u7535\u52bf\u5e76\u5bf9\u6bd4\u9499\u949b\u77ff\u91cf\u5b50\u70b9\u7684\u8fd8\u539f\u7535\u52bf\u786e\u5b9a\u7535\u5b50\/\u7a7a\u7a74\u8f6c\u79fb\u7684\u65b9\u5411\uff08\u56fe\u4e09\uff09\u3002\u57fa\u4e8e\u77ac\u6001\u5149\u8c31\u548c\u7535\u5316\u5b66\u7ed3\u679c\uff0c\u63d0\u51fa\u4e86\u4ee5\u81ea\u7531\u57fa\u4e3a\u57fa\u7840\u53cd\u5e94\u673a\u7406\uff08\u56fe\u56db\uff09\u3002\u540c\u65f6\u4f5c\u8005\u53d1\u73b00.8 \/ 0. 5\u03bcs\u7684\u7535\u8377\u5206\u79bb\u65f6\u95f4\u5bf9\u4e8e\u5316\u5b66C-C\u952e\u5408\u6210\u662f\u975e\u5e38\u5fc5\u8981\u7684\u3002<\/p>\n \u56fe1 \u9499\u949b\u77ff\u7eb3\u7c73\u7c92\u5b50(CsPbBr3<\/sub> NCs)\u7684\u5149\u5b66\u6027\u8d28<\/strong><\/p>\n \uff08a\uff09<\/strong>TEM\u56fe\u50cf\u3002 NC\u7684\u5c3a\u5bf8\u63a5\u8fd110 nm\u3002\uff08a\uff09<\/strong>\u7684\u63d2\u56fe\u663e\u793a\u4e86\u5408\u6210\u7684\u7eb3\u7c73\u6676\u4f53\u7684\u653e\u5927\u56fe\u3002\uff08b\uff09<\/strong>\u7ebf\u6027\u5438\u6536\u548cPL\u5149\u8c31\u3002\u5438\u6536\u5f00\u59cb\u548cPL\u5cf0\u7684\u4e2d\u5fc3\u63a5\u8fd12.4 eV\u3002\uff08c\uff09<\/strong>\u03b1-\u70f7\u57fa\u5316\u53cd\u5e94\u3002<\/p>\n \u56fe2 \u9499\u949b\u77ff\u7eb3\u7c73\u7c92\u5b50(CsPbBr3<\/sub> NCs)\u7684\u53cd\u5e94\u52a8\u529b\u5b66\u8fc7\u7a0b<\/strong><\/p>\n \uff08a\uff09<\/strong>A\uff0c\u7eaf\u51c0NCs\uff0cB\uff0cNCs + 2-\u6eb4\u82ef\u4e59\u916e\uff081\uff09\uff0cC\uff0cNCs +\u8f9b\u919b\uff082\uff09\uff0cD\uff0cNCs + \u8f9b\u919b\uff082\uff09+\u4e8c\u73af\u5df1\u80fa\uff083\uff09\u548cE\uff0cNC +\u4e8c\u73af\u5df1\u80fa\uff083\uff09\u7684\u9759\u6001\u5438\u6536\u5149\u8c31\uff0c\u5176\u4e3b\u8981\u7531CsPbBr3 NCs\u7684\u5438\u6536\u51b3\u5b9a\u3002\uff08b\uff09<\/strong>A-E\u7684\u77ac\u6001\u5438\u6536\u56fe\u50cf\uff0c\u660e\u4eae\u7684\u7ea2\u8272\u5bf9\u5e94\u4e8e\u5149\u8bf1\u5bfc\u7684NCs\u6fc0\u5b50\u57fa\u6001\u6f02\u767d\uff0c\u800c\u84dd\u8272\u662f\u5149\u8bf1\u5bfc\u7684\u5438\u6536\u3002\uff08c\uff09<\/strong>\u5728A-D\u7684NCs\u6fc0\u5b50TA\u52a8\u529b\u5b66\u3002\u7ea2\u8272\u865a\u7ebf\u8868\u793a\u4e0e\u52a8\u529b\u5b66\u7684\u62df\u5408\u3002\u5f88\u660e\u663e\u7684\u770b\u5230B,D,E\u5728\u524d100ps\u5b58\u5728\u8d85\u5feb\u7684\u7535\u8377\u8f6c\u79fb\u8fc7\u7a0b\u540c\u65f6\u6709\u8d85\u8fc7100ns\u7684\u7535\u8377\u5206\u79bb\u65f6\u95f4\uff08d\uff09<\/strong>A\u53caE\u6837\u54c1\u7684TA\u52a8\u529b\u5b66\u53ca\u62df\u5408\u3002<\/p>\n \u56fe3 \u9499\u949b\u77ff\u7eb3\u7c73\u7c92\u5b50(CsPbBr3<\/sub> NCs)\u53ca\u53cd\u5e94\u7269\u7535\u5316\u5b66\u8fd8\u539f\u7535\u52bf<\/strong><\/p>\n \u660e\u663e\u770b\u51fa\u7535\u5b50\u8f6c\u79fb\u52302-\u6eb4\u82ef\u4e59\u916e\uff0c\u7a7a\u7a74\u8f6c\u79fb\u5230\u8f9b\u919b\uff082\uff09+\u4e8c\u73af\u5df1\u80fa\uff083\uff09\u53cd\u5e94\u7684\u4ea7\u7269\u3002<\/p>\n \u56fe4 \u53cd\u5e94\u673a\u7406<\/strong><\/p>\n \u5149\u751f\u7535\u5b50\u4eceCsPbBr3<\/sub>\u8f6c\u79fb\u52302-\u6eb4\u82ef\u4e59\u916e\uff0c\u5e76\u91cd\u65b0\u91ca\u653e\u6eb4\u9634\u79bb\u5b50\u4ee5\u5f62\u6210\u81ea\u7531\u57fa1a<\/sub>\u3002\u5149\u751f\u7a7a\u7a74\u8f6c\u79fb\u5230\u539f\u4f4d\u5f62\u6210\u7684\u70ef\u80fa\u4e2d\u4ee5\u5f62\u6210\u81ea\u7531\u57fa\u9633\u79bb\u5b504b<\/sub>\u3002\u7136\u540e4b<\/sub>\u901a\u8fc7\u81ea\u7531\u57fa-\u81ea\u7531\u57fa\u5076\u8054\u4e0e1a<\/sub>\u53cd\u5e94\u5f62\u6210C-C\u952e\u4e2d\u95f4\u4f534c<\/sub>\u3002\u81ea\u7531\u57fa1a<\/sub>\u8fd8\u53ef\u4ee5\u4e0e\u4e2d\u60274\u53cd\u5e94\u4ee5\u5f62\u6210\u7c7b\u4f3c\u4e8e4c<\/sub>\u7684\u7ed3\u6784\uff0c\u7136\u540e\u53ef\u4ee5\u63a5\u53d7\u7a7a\u7a74\u4ee5\u5f62\u62104c<\/sub>\u3002\u00a0\uff08\u5982\u865a\u7ebf\u7bad\u5934\u6240\u793a\uff094c<\/sub>\u7684\u6c34\u89e3\u5bfc\u81f4\u4ea7\u7269\u548c\u52a9\u50ac\u5316\u5242\u7684\u518d\u751f\u3002<\/p>\n \u8bba\u6587\uff1aKang Wang\u2020; Haipeng Lu\u2020; Xiaolin Zhu\u2020; Yixiong Lin; Matthew C. Beard*; Yong Yan* and Xihan Chen*, Ultrafast Reaction Mechanisms in Perovskite Based Photocatalytic C\u2013C Coupling, ACS Energy Lett.<\/em> 5<\/strong>, 566-571 (2020)<\/p>\n<\/p>\n
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