{"id":45723,"date":"2016-10-17T06:30:10","date_gmt":"2016-10-16T22:30:10","guid":{"rendered":"\/\/m.iemloyee.com\/?p=45723"},"modified":"2016-10-17T11:48:17","modified_gmt":"2016-10-17T03:48:17","slug":"science%ef%bc%9a%e5%85%a8%e6%97%a0%e6%9c%ba%e9%92%99%e9%92%9b%e7%9f%bf%e5%a4%aa%e9%98%b3%e8%83%bd%e7%94%b5%e6%b1%a0-%e4%bd%8e%e6%b8%a9%e7%a8%b3%e5%ae%9a%e7%9a%84cspbi3%e7%ab%8b","status":"publish","type":"post","link":"\/\/m.iemloyee.com\/?p=45723","title":{"rendered":"Science\uff1a\u5168\u65e0\u673a\u9499\u949b\u77ff\u592a\u9633\u80fd\u7535\u6c60-\u4f4e\u6e29\u7a33\u5b9a\u7684CsPbI3\u7acb\u65b9\u76f8"},"content":{"rendered":"
\u3010\u5f15\u8a00\u3011<\/strong><\/p>\n \u6709\u673a\u65e0\u673a\u6742\u5316\u9499\u949b\u77ff\uff08ABX3<\/sub>\uff09\u81ea2009\u5e74\u9996\u6b21\u7528\u4e8e\u5149\u4f0f\u53d1\u7535\u5668\u4ef6\u4ee5\u6765\u53d7\u5230\u5e7f\u6cdb\u5173\u6ce8\uff0c\u53d1\u5c55\u81f3\u4eca\u5df2\u5b9e\u73b022%\u80fd\u91cf\u8f6c\u5316\u6548\u7387\uff0c\u4e0e\u73b0\u4eca\u6700\u597d\u7684\u8584\u819c\u786b\u65cf\u5316\u7269\u548c\u7845\u5668\u4ef6\u52bf\u5747\u529b\u654c\u3002\u4f46\u662f\uff0c\u6709\u673a\u65e0\u673a\u6742\u5316\u9499\u949b\u77ff\u5728\u81ea\u7136\u73af\u5883\u4e0b\u5374\u4e0d\u80fd\u957f\u671f\u7a33\u5b9a\u5b58\u5728\u3002\u5168\u65e0\u673a\u94c5\u5364\u5316\u7269\u9499\u949b\u77ffCsPbI3<\/sub>\u4e0d\u542b\u6709\u6325\u53d1\u6027\u6709\u673a\u7ec4\u5206\uff0c\u5176\u7acb\u65b9\u76f8\u5177\u6709\u6700\u5408\u9002\u7684\u5e26\u9699\uff08Eg<\/sub>=1.73 V\uff09\uff0c\u662f\u7406\u60f3\u7684\u66ff\u4ee3\u54c1\uff0c\u7136\u800c\u5728320\u2103\u4e0b\u6613\u8f6c\u53d8\u4e3a\u6b63\u4ea4\u6676\u7cfb\u3002\u4e3a\u4e86\u89e3\u51b3\u8fd9\u4e00\u95ee\u9898\uff0c\u5df2\u6709\u6587\u7ae0\u62a5\u9053\u91c7\u7528Br–<\/sup>\u53d6\u4ee3I–<\/sup>\uff0c\u5c06\u76f8\u53d8\u6e29\u5ea6\u964d\u4f4e\u81f3100\u2103\uff0c\u4f46\u662f\u8fd9\u5374\u5bfc\u81f4\u5e26\u9699\u53d8\u5bbd\uff0c\u4e0d\u5229\u4e8e\u80fd\u91cf\u8f6c\u5316\u3002<\/p>\n \u3010\u6210\u679c\u7b80\u4ecb<\/strong>\u3011<\/p>\n 2016\u5e7410\u67087\u65e5\uff0cScience<\/strong>\u53d1\u8868\u4e86\u4e00\u7bc7\u5173\u4e8e\u9499\u949b\u77ff\u592a\u9633\u80fd\u7535\u6c60\u7684\u6587\u7ae0\uff0c\u9898\u76ee\u4e3a\u201cQuantum dot-induced phase stabilization of \u03b1-CsPbI3<\/sub> perovskite for high-efficiency photovoltaics<\/strong>\u201d\u3002\u8be5\u6587\u7ae0\u7684\u901a\u8baf\u4f5c\u8005\u662f\u7f8e\u56fd\u56fd\u5bb6\u53ef\u518d\u751f\u80fd\u6e90\u5b9e\u9a8c\u5ba4Joseph M. Luther\u6559\u6388<\/strong>\u3002\u7c7b\u4f3c\u6709\u673a\u91d1\u5c5e\u5364\u5316\u7269\u7684\u5168\u65e0\u673a\u9499\u949b\u77ff\uff0c\u7acb\u65b9\u76f8\u03b1-CsPbI3<\/sub>\u5177\u6709\u7406\u60f3\u7684\u5e26\u9699\uff0c\u4f46\u662f\u4e00\u822c\u53ea\u5728\u9ad8\u6e29\u4e0b\u7a33\u5b9a\u5b58\u5728\u3002Joseph M. Luther\u6559\u6388\u8bfe\u9898\u7ec4\u5408\u6210\u5728\u4f4e\u6e29\u4e0b\u7a33\u5b9a\u5b58\u5728\u7684\u03b1-CsPbI3<\/sub>\u91cf\u5b50\u70b9\uff0c\u53ef\u7528\u4e8e\u9ad8\u6548\u592a\u9633\u80fd\u7535\u6c60\u3002<\/p>\n \u5728\u672c\u6587\u4e2d\uff0c\u4f5c\u8005\u4e3b\u8981\u6539\u8fdb\u03b1-CsPbI3<\/sub>\u91cf\u5b50\u70b9\u7684\u5236\u5907\u65b9\u6cd5\u5e76\u5f00\u53d1\u7eaf\u5316\u5de5\u827a\u3002\u5de7\u5999\u5229\u7528\u8868\u9762\u6d3b\u6027\u5242\u5305\u8986\u03b1-CsPbI3<\/sub>\u91cf\u5b50\u70b9\uff0c\u800c\u540e\u7eaf\u5316\u7684\u91cf\u5b50\u70b9\u5728\u7a7a\u6c14\u4e2d\u751a\u81f3\u4f4e\u6e29\u4e0b\u7a33\u5b9a\u5b58\u5728\u6570\u4e2a\u6708\uff0c\u5e76\u5728\u53ef\u89c1\u5149\u4e0b\u5177\u6709\u53ef\u8c03\u8c10\u5e26\u9699\u3002\u8fdb\u4e00\u6b65\u5236\u5907\u6210\u8584\u819c\u5c06\u5176\u5e94\u7528\u4e8e\u592a\u9633\u80fd\u7535\u6c60\uff0c\u8868\u73b0\u51fa\u8d85\u8fc710%\u7684\u80fd\u91cf\u8f6c\u5316\u6548\u7387\u548c\u7a33\u5b9a\u8f93\u51fa\u529f\u7387\uff0c\u5176\u5f00\u8def\u7535\u4f4d\u9ad8\u8fbe1.23 V\u3002\u8fd9\u4e9b\u5668\u4ef6\u8fd8\u80fd\u7528\u4e8e\u4f4e\u5bfc\u901a\u7535\u538b\u548c\u53ef\u8c03\u8c10\u53d1\u5c04\u7684\u53d1\u5149\u4e8c\u6781\u7ba1\u3002<\/p>\n \u3010\u56fe\u6587\u5bfc\u8bfb\u3011<\/strong><\/p>\n \u56fe<\/strong>1<\/strong>\uff1a<\/strong>CsPbI3<\/sub><\/strong>\u91cf\u5b50\u70b9<\/strong>\u8868\u5f81<\/strong><\/p>\n (A)\u00a0\u5206\u522b\u5728\u4e0d\u540c\u6e29\u5ea6(a)60\u2103(3.4 nm)\u3001(b)100\u2103(4.5 nm) \u3001(c)140\u2103(5 nm)\u3001(d)150\u2103(6.8 nm) \u3001(e)170\u2103(8 nm)\u3001(g)180\u2103(9 nm)\u3001(f)185\u2103(12.5 nm)\u4e0b\u5408\u6210\u7684CsPbI3<\/sub>\u91cf\u5b50\u70b9\u7684\u5f52\u4e00\u5316\u7d2b\u5916-\u53ef\u89c1\u5438\u6536\u5149\u8c31\u548c\u7167\u7247\u3002\u62ec\u53f7\u4e2d\u6570\u5b57\u662f\u4eceTEM\u89c2\u6d4b\u5230\u7684\u5e73\u5747\u7c92\u5f84\u3002<\/p>\n (B) \u5728\u7d2b\u5916\u5149\u7167\u5c04\u4e0b(A)\u4e2d\u91cf\u5b50\u70b9\u7684\u5f52\u4e00\u5316\u5149\u81f4\u53d1\u5149\u5149\u8c31\u548c\u7167\u7247\u3002<\/p>\n (C) 180\u2103\u4e0b\u5408\u6210\u7684CsPbI3<\/sub>\u91cf\u5b50\u70b9\u7684\u9ad8\u5206\u8fa8TEM\u56fe\u3002<\/p>\n (D) \u4e0d\u540c\u6e29\u5ea6\u4e0b\u5408\u6210\u7684CsPbI3<\/sub>\u91cf\u5b50\u70b9\u7684XRD\u56fe\uff0c\u53ef\u786e\u8ba4\u5b83\u4eec\u5747\u4e3aCsPbI3<\/sub>\u7684\u7acb\u65b9\u76f8\u3002<\/p>\n \u56fe<\/strong>2<\/strong>\uff1a<\/strong>CsPbI3<\/sub><\/strong>\u91cf\u5b50\u70b9<\/strong>\u7684\u76f8\u7a33\u5b9a\u6027<\/strong><\/p>\n (A-B) \u5206\u522b\u662f170\u2103\u5408\u6210\u7684CsPbI3<\/sub>\u91cf\u5b50\u70b9\u5e76\u5728\u7a7a\u6c14\u4e2d\u50a8\u5b5860\u5929\u7684\u7c89\u672bXRD\u56fe\u8c31\u548c\u5728370 nm\u5f52\u4e00\u5316\u7684\u7d2b\u5916-\u53ef\u89c1\u5438\u6536\u5149\u8c31\u3002\u63d2\u56fe\u53ef\u770b\u5230\u6fc0\u5b50\u5cf0\u53d1\u751f\u8f7b\u5fae\u84dd\u79fb\u3002<\/p>\n (C) CsPbI3<\/sub>\u91cf\u5b50\u70b9XRD\u56fe\u8c31\u7684Rietveld\u7cbe\u4fee\u62df\u5408\uff0c\u8bf4\u660e\u662f\u7eaf\u51c0\u7684CsPbI3<\/sub>\u7acb\u65b9\u76f8\u3002<\/p>\n \u56fe<\/strong>3<\/strong>\uff1a<\/strong>CsPbI3<\/sub><\/strong>\u91cf\u5b50\u70b9\u8584\u819c<\/strong><\/p>\n (A) 100\u2103\u3001150\u2103\u3001180\u2103\u5408\u6210\u7684CsPbI3<\/sub>\u91cf\u5b50\u70b9\u5728\u6eb6\u6db2\uff08\u84dd\u8272\uff09\u548c\u6210\u578b\u8584\u819c\u4e0a\uff08\u9ed1\u8272\uff09\u7684\u7d2b\u5916-\u53ef\u89c1\u5438\u6536\u5149\u8c31\uff08\u5b9e\u7ebf\uff09\u548c\u5149\u81f4\u53d1\u5149\u5149\u8c31\uff08\u865a\u7ebf\uff09\u3002<\/p>\n (B) FTIR\u5149\u8c31\u663e\u793aCsPbI3<\/sub>\u91cf\u5b50\u70b9\u8584\u819c\u6210\u578b\u65f6\uff08\u9ed1\u8272\uff09\u548cMeOAc\u5904\u7406\u540e\uff08\u7ea2\u8272\uff09\u7684\u7ea2\u5916\u900f\u5c04\u3002<\/p>\n \u56fe<\/strong>4<\/strong>\uff1a<\/strong>CsPbI3<\/sub><\/strong>\u5149\u7535\u5b50\u5668\u4ef6<\/strong><\/p>\n (A-B) \u5206\u522b\u662fCsPbI3<\/sub>\u5149\u4f0f\u7535\u6c60\u7684\u793a\u610f\u56fe\uff08\u542b\u91cf\u5b50\u70b9\u7684TEM\u56fe\uff09\u548cSEM\u622a\u9762\u56fe\u3002<\/p>\n (C) \u5728\u7a7a\u6c14\u4e2d\u5386\u7ecf15\u5929\u50a8\u5b58\u7684\u5668\u4ef6\u7684\u7535\u6d41\u5bc6\u5ea6-\u7535\u538b\u66f2\u7ebf\u3002\u9ed1\u65b9\u5757\u8868\u793a\u5668\u4ef6\u5728\u7535\u538b0.92V\u4e0b\u7a33\u5b9a\u7684\u8f93\u51fa\u529f\u7387\u3002<\/p>\n (D) \u5668\u4ef6\u7684\u5916\u91cf\u5b50\u6548\u7387\uff08\u9ed1\u8272\uff09\u548c\u79ef\u5206\u7535\u6d41\u5bc6\u5ea6\uff08\u84dd\u8272\uff09\u3002<\/p>\n (E) CsPbI3<\/sub>\u5149\u4f0f\u7535\u6c60\uff08170\u2103\u5408\u6210\u7684CsPbI3<\/sub>\u91cf\u5b50\u70b9\uff09\u5728\u6b63\u5411\u504f\u538b\u4e0b\u7684\u7535\u81f4\u53d1\u5149\u5149\u8c31\u3002\u63d2\u56fe\u662f\u53d1\u5149\u5668\u4ef6\u7684\u7167\u7247\u3002<\/p>\n (F) \u5206\u522b\u662f\u91c7\u7528170\u2103\u548c180\u2103\u5408\u6210\u7684CsPbI3<\/sub>\u91cf\u5b50\u70b9\u7ec4\u88c5\u7684\u5b8c\u6574\u5668\u4ef6\u7684\u5149\u81f4\u53d1\u5149\uff08\u865a\u7ebf\uff09\u548c\u7535\u81f4\u53d1\u5149\uff08\u5b9e\u7ebf\uff09\u5149\u8c31\uff0c\u8bf4\u660e\u5728\u5b8c\u6574\u5668\u4ef6\u4e0a\u7684\u91cf\u5b50\u5c3a\u5bf8\u6548\u5e94\u3002<\/p>\n \u3010\u5c0f\u7ed3\u3011<\/strong><\/p>\n Joseph M. Luther\u6559\u6388\u8bfe\u9898\u7ec4\u5229\u7528\u7eb3\u7c73\u6280\u672f\uff0c\u5c06\u901a\u5e38\u60c5\u51b5\u4e0b\u5e38\u6e29\u4e0d\u80fd\u7a33\u5b9a\u7684CsPbI3<\/sub>\u7acb\u65b9\u76f8\u5b9e\u73b0\u7a33\u5b9a\u7684\u8f6c\u53d8\uff0c\u4e3a\u5168\u65e0\u673a\u9499\u949b\u77ff\u592a\u9633\u80fd\u7535\u6c60\u7684\u53d1\u5c55\u5e26\u6765\u4e86\u65b0\u7684\u5951\u673a\u3002\u8fd9\u4e00\u65b9\u6cd5\u4e5f\u4e3aLEDs\u7b49\u5176\u4ed6\u9886\u57df\u7684\u6750\u6599\u8bbe\u8ba1\u63d0\u4f9b\u53e6\u4e00\u79cd\u673a\u7406\u3002<\/p>\n \u6587\u732e\u94fe\u63a5<\/strong>\uff1aQuantum dot\u2013induced phase stabilization of \u03b1-CsPbI3 perovskite for high-efficiency photovoltaics<\/a>\u00a0 \u00a0(Science, 2016, DOI: 10.1126\/science.aag2700 )<\/p>\n<\/strong><\/p>\n
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