{"id":51463,"date":"2016-11-14T14:00:35","date_gmt":"2016-11-14T06:00:35","guid":{"rendered":"\/\/m.iemloyee.com\/?p=51463"},"modified":"2017-08-04T19:29:13","modified_gmt":"2017-08-04T11:29:13","slug":"nano-letters%ef%bc%9a%e8%bf%9b%e8%a1%8c%e6%b2%b9%e9%85%b8%e9%92%9d%e5%8c%96%e5%a4%84%e7%90%86%ef%bc%8c%e5%8d%95%e6%99%b6ch3nh3pbi3%e7%ba%b3%e7%b1%b3%e7%ba%bf%e5%85%89%e7%94%b5%e6%8e%a2%e6%b5%8b","status":"publish","type":"post","link":"\/\/m.iemloyee.com\/?p=51463","title":{"rendered":"Nano Lett.\uff1a\u8fdb\u884c\u6cb9\u9178\u949d\u5316\u5904\u7406\uff0c\u5355\u6676CH3NH3PbI3\u7eb3\u7c73\u7ebf\u5149\u7535\u63a2\u6d4b\u529bMAX"},"content":{"rendered":"

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

\u5149\u7535\u63a2\u6d4b\u5668\u53ef\u5c06\u5149\u4fe1\u53f7\u8f6c\u6362\u4e3a\u7535\u6d41\u6216\u7535\u538b\u8f93\u51fa\uff0c\u8fd9\u4e00\u7279\u6027\u4f7f\u5176\u5728\u6210\u50cf\u3001\u4f20\u611f\u548c\u5149\u8c31\u7b49\u9886\u57df\u88ab\u5e7f\u6cdb\u5e94\u7528\u3002\u9499\u949b\u77ff\u578b\u5149\u7535\u63a2\u6d4b\u5668\u5728\u6eb6\u6db2\u6cd5\u5236\u5907\u534a\u5bfc\u4f53\u8fc7\u7a0b\u4e2d\u56e0\u5176\u590d\u5408\u635f\u5931\u975e\u5e38\u5c11\uff0c\u56e0\u6b64\u5177\u5907\u9ad8\u7075\u654f\u548c\u5feb\u901f\u54cd\u5e94\u7684\u7279\u6027\u3002<\/p>\n

\u9499\u949b\u77ffCH3<\/sub>NH3<\/sub>PbI3<\/sub>\u5177\u6709\u9002\u5f53\u7684\u5e26\u9699\u3001\u9ad8\u5149\u5438\u6536\u7cfb\u6570\u3001\u957f\u7535\u5b50\u7a7a\u7a74\u6269\u6563\u957f\u5ea6\u3001\u826f\u597d\u7684\u7f3a\u9677\u7269\u7406\u7279\u6027\u53ca\u4f4e\u6210\u672c\u7684\u6eb6\u6db2\u6cd5\u5236\u5907\u4f7f\u5176\u6210\u4e3a\u5149\u7535\u63a2\u6d4b\u5668\u9886\u57df\u7684\u65b0\u5174\u6750\u6599\u3002\u800c\u5728\u4f17\u591aCH3<\/sub>NH3<\/sub>PbI3<\/sub>\u7684\u5f62\u6001\uff08\u8584\u819c\u3001\u5355\u6676\u3001\u7eb3\u7c73\u7ebf\uff09\u4e2d\uff0c\u5355\u6676CH3<\/sub>NH3<\/sub>PbI3<\/sub>\u7eb3\u7c73\u7ebf\u5728\u5149\u7535\u63a2\u6d4b\u4e2d\u66f4\u80dc\u4e00\u7b79\uff0c\u56e0\u5176\u6676\u754c\u6570\u51cf\u5c11\u3001\u6027\u80fd\u5448\u5404\u5411\u5f02\u6027\uff0c\u540c\u65f6\u8fd8\u5177\u6709\u5f88\u597d\u7684\u673a\u68b0\u67d4\u6027\u3002\u4f46\u5bf9CH3<\/sub>NH3<\/sub>PbI3<\/sub>\u7eb3\u7c73\u7ebf\u5149\u7535\u63a2\u6d4b\u5668\u6765\u8bf4\uff0c\u968f\u4e4b\u800c\u6765\u7684\u7f3a\u70b9\u4fbf\u662f\u5176\u5927\u7684\u8868\u9762\u4f1a\u50ac\u5316\u8f7d\u6d41\u5b50\u590d\u5408\u548c\u6750\u6599\u7684\u5206\u89e3\uff0c\u8fdb\u800c\u663e\u8457\u5f71\u54cd\u8bbe\u5907\u7684\u6027\u80fd\u53ca\u7a33\u5b9a\u6027\u3002<\/p>\n

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

\u534e\u4e2d\u79d1\u6280\u5927\u5b66\u5510\u6c5f\u6559\u6388\uff08\u901a\u8baf\u4f5c\u8005\uff09<\/strong>\u7b49\u4eba\u901a\u8fc7\u5f15\u5165\u6cb9\u9178\uff0c\u5bf9CH3<\/sub>NH3<\/sub>PbI3<\/sub>\u7eb3\u7c73\u7ebf\u8868\u9762\u8fdb\u884c\u949d\u5316\uff0c\u4ece\u800c\u5f88\u597d\u7684\u63d0\u9ad8\u4e86\u8bbe\u5907\u7684\u7a33\u5b9a\u6027\uff0c\u5e76\u8fdb\u4e00\u6b65\u63d0\u9ad8\u4e86\u7075\u654f\u6027\uff08\u63a2\u6d4b\u529b\u8fbe\u523021013 <\/sup>Jones\uff09\u3002\u5e76\u5229\u7528\u4e00\u7ef4\u51e0\u4f55\u5b66\uff0c\u9996\u6b21\u5c55\u73b0\u4e86CH3<\/sub>NH3<\/sub>PbI3<\/sub>\u7eb3\u7c73\u7ebf\u5149\u7535\u63a2\u6d4b\u5668\u7ebf\u6027\u4e8c\u5411\u8272\u6027\u7684\u5149\u7535\u63a2\u6d4b\u3002<\/p>\n

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

\u56fe\u4e00\u3001CH3<\/sub>NH3<\/sub>PbI3<\/sub>\u7eb3\u7c73\u7ebf\u7684\u8868\u5f81<\/strong><\/p>\n

\"1-1\"<\/p>\n

(a) CH3<\/sub>NH3<\/sub>PbI3<\/sub>\u7eb3\u7c73\u7ebf\u9635\u5217\u7684\u4fef\u89c6\u56fe<\/p>\n

(b)\u5355\u4e2aCH3<\/sub>NH3<\/sub>PbI3<\/sub>\u7eb3\u7c73\u7ebf\u7684AFM\u56fe\uff0c\u5185\u5d4c\u56fe\u4e3aCH3<\/sub>NH3<\/sub>PbI3<\/sub>\u7eb3\u7c73\u7ebf\u6a2a\u622a\u9762\u7684SEM\u56fe<\/p>\n

(c) CH3<\/sub>NH3<\/sub>PbI3<\/sub>\u7eb3\u7c73\u7ebf\u7684HRTEM\u56fe\uff0c\u5185\u5d4c\u56fe\u4e3a\u5c40\u90e8\u4f4e\u500dTEM\u56fe<\/p>\n

(d) CH3<\/sub>NH3<\/sub>PbI3<\/sub>\u7eb3\u7c73\u7ebf\u7684SAED\u56fe<\/p>\n

(e) CH3<\/sub>NH3<\/sub>PbI3<\/sub>\u7eb3\u7c73\u7ebf\u7684XRD\u56fe\u8c31<\/p>\n

(f) CH3<\/sub>NH3<\/sub>PbI3<\/sub>\u7eb3\u7c73\u7ebf\u7684\u5438\u6536\u548cPL\u5149\u8c31\u56fe<\/p>\n

\u56fe\u4e8c\u3001CNPD\u7ed3\u6784\u53ca\u4e0d\u540c\u949d\u5316\u5904\u7406\u5bf9CNPD\u6027\u80fd\u7684\u5f71\u54cd<\/strong><\/p>\n

\"2-1\"<\/p>\n

(a) CNPD\u8bbe\u5907\u7ed3\u6784\u56fe\u793a<\/p>\n

(b) CNPDs\u5728\u7531LED\u4ea7\u751f\u7684530nm\u5355\u8272\u5149\u4e0b\u4ea7\u751f\u7684\u4eae\u6697\u7535\u6d41-\u7535\u538b\uff08I-V\uff09\u66f2\u7ebf\u3002\u5149\u5f3a\u5bc6\u5ea6\u4e3a236 mW cm-2<\/sup><\/p>\n

(c-e) \u7ecf\u8fc7\u4e0d\u540c\u540e\u5904\u7406\u540e\uff0cCNPDs\u7684\u77ac\u65f6\u5149\u7535\u54cd\u5e94\uff0c\u4ee5\u6bd4\u8f83\u786e\u5b9a\u51fa\u6700\u4f73\u949d\u5316\u5904\u7406\u3002\u540e\u5904\u7406\u65b9\u5f0f\u5206\u522b\u4e3a\u6c27\u7b49\u79bb\u5b50\u4f53\u8f90\u5c04\uff08OP\uff09\uff0cCH3<\/sub>NH3<\/sub>I IPA\u6d78\u6da6\uff08MAI\uff09\u548c\u6cb9\u9178\u7532\u82ef\u6d78\u6da6\uff08OA\uff09\u3002\u6d4b\u8bd5\u6761\u4ef6\u4e3a530 nm\u5355\u8272\u5149\uff0c2.36 mV cm-2<\/sup>\uff0c10 s\u4e00\u5faa\u73af\u3002<\/p>\n

(f) \u6bd4\u8f83\u4e0d\u540c\u540e\u5904\u7406\u7684CNPDs\u8bbe\u5907\u50a8\u5b58\u7a33\u5b9a\u6027\u3002\u8001\u5316\u6761\u4ef6\uff1a~20\uff0c~50% \u6e7f\u5ea6\uff0c\u8bbe\u5907\u672a\u5c01\u88c5<\/p>\n

\u56fe\u4e09\u3001\u5206\u6790OA\u540e\u5904\u7406\u5bf9CH3<\/sub>NH3<\/sub>PbI3<\/sub>\u7eb3\u7c73\u7ebf\u7684\u6709\u5229\u5f71\u54cd<\/strong><\/p>\n

\"3-1\"<\/p>\n

(a-b) \u5206\u522b\u5728\u540c\u7b49\u6d4b\u8bd5\u6761\u4ef6\u4e0b\u5bf9\u53ef\u63a7\u548cOA\u5904\u7406\u7684CH3<\/sub>NH3<\/sub>PbI3<\/sub>\u7eb3\u7c73\u7ebf\u8fdb\u884cPL\u5f3a\u5ea6\u548c\u77ac\u65f6\u8870\u53d8\u7684\u6bd4\u8f83\u3002\u52b1\u78c1\u529f\u7387\u4e3a50 mW\uff0c\u5149\u6ce2\u957f780 nm\u3002<\/p>\n

(c-d) \u5206\u522b\u5bf9\u53ef\u63a7\u548cOA\u5904\u7406\u7684CH3<\/sub>NH3<\/sub>PbI3<\/sub>\u7eb3\u7c73\u7ebf\u8fdb\u884c\u7a7a\u95f4\u7535\u8377\u9650\u5236\u6d4b\u8bd5\u3002\u7ea2\u7ebf\u548c\u7eff\u7ebf\u5206\u522b\u4e3a\u7ebf\u6027\u548c\u4e8c\u6b21\u578bI-V\u66f2\u7ebf\u3002<\/p>\n

\u56fe\u56db\u3001OA\u949d\u5316\u7684CNPD\u5149\u7535\u6027\u80fd<\/strong><\/p>\n

\"4-1\"<\/p>\n

(a) \u4e0e\u6ce2\u957f\u76f8\u5173\u7684\u5149\u7535\u6d41\u548c\u54cd\u5e94\u7387\u3002\u504f\u5dee1 V\uff0c\u5149\u6e90\u4e3a\u6eb4\u94a8\u4e1d\u706f\uff0c\u901a\u8fc7\u5149\u6805\u8c03\u5236\u4ea7\u751f10 nm\u6700\u5c0f\u6b65\u8ddd\u7684\u5355\u8272\u5149\u3002<\/p>\n

(b) CNPD\u7684\u77ac\u65f6\u54cd\u5e94\uff08I-t\u66f2\u7ebf\uff09\u300230 ms\u4e00\u5faa\u73af\uff0c\u91c7\u6837\u95f4\u9694\u4e3a1 ms\u3002<\/p>\n

(c) \u5728\u4e0d\u540c\u9891\u7387\u4e0b\u6d4b\u8bd5\u7535\u6d41\u566a\u58f0\u3002\u84dd\u8272\u865a\u7ebf\u4e3a\u5df2\u62a5\u9053\u7684\u9499\u949b\u77ff\u8584\u819c\u57fa\u5149\u7535\u63a2\u6d4b\u5668\u7684\u6d4b\u91cf\u503c\u3002\u7ea2\u8272\u865a\u7ebf\u4e3a\u6563\u5c04\u566a\u58f0\u9650\u3002<\/p>\n

(d) \u5149\u5f3a\u5ea6-\u54cd\u5e94\u7387\/\u63a2\u6d4b\u7387\u3002\u504f\u5dee\u4e3a1 V\u3002\u5149\u5f3a\u5ea6\u57286\u4e2a\u6570\u91cf\u7ea7\u95f4\u53d8\u5316\uff0c\u53d1\u5c04\u6ce2\u957f\u4e3a530 nm\u3002<\/p>\n

\u56fe\u4e94\u3001OA\u5904\u7406\u7684CNPD\u7ebf\u6027\u4e8c\u5411\u8272\u6027\u5149\u7535\u63a2\u6d4b<\/strong><\/p>\n

\"5-1\"<\/p>\n

(a) \u5728\u6709\u9650\u4e0d\u540c\u7684\u65f6\u95f4\u57df\uff08FDTD\uff09\u5185\u8fdb\u884c\u9499\u949b\u77ff\u7eb3\u7c73\u7ebf\u504f\u632f\u5149\u6a21\u62df\u56fe\u793a<\/p>\n

(b) \u5f53\u504f\u632f\u5149\u7684\u65b9\u5411\u5e73\u884c\u6216\u5782\u76f4\u4e8e\u7eb3\u7c73\u7ebf\u8f74\u5411\u65f6\uff0c\u8ba1\u7b97CH3<\/sub>NH3<\/sub>PbI3<\/sub>\u7eb3\u7c73\u7ebf\u7684\u5438\u6536\u7cfb\u6570\u3002<\/p>\n

(c) \u6d4b\u8bd5CNPD\u504f\u632f\u654f\u611f\u6027\u7684\u88c5\u7f6e\u56fe<\/p>\n

(d) \u504f\u632f\u89d2-CNPD\u7684\u6807\u51c6\u5149\u7535\u6d41<\/p>\n

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

\u901a\u8fc7\u4e00\u6b65\u81ea\u7ec4\u88c5\u7684\u65b9\u6cd5\uff0c\u6210\u529f\u5408\u6210\u5355\u6676CH3<\/sub>NH3<\/sub>PbI3<\/sub>\u7eb3\u7c73\u7ebf\u3002\u5e76\u5bf9CH3<\/sub>NH3<\/sub>PbI3<\/sub>\u7eb3\u7c73\u7ebf\u8fdb\u884c\u4e0d\u540c\u7684\u540e\u5904\u7406\u65b9\u5f0f\uff0c\u53d1\u73b0\u5229\u7528\u6cb9\u9178\uff08OA\uff09\u949d\u5316\u5904\u7406\uff0c\u53ef\u52a0\u500d\u589e\u52a0\u5149\u7535\u6d41\uff0c\u663e\u8457\u63d0\u9ad8\u8bbe\u5907\u7684\u7a33\u5b9a\u6027\u3001\u54cd\u5e94\u7387\u548c\u63a2\u6d4b\u529b\u3002\u5229\u7528CH3<\/sub>NH3<\/sub>PbI3<\/sub>\u7eb3\u7c73\u7ebf\u7684\u5404\u5411\u5f02\u6027\uff0c\u9996\u6b21\u53d1\u73b0\u5f3a\u504f\u632f\u51b3\u5b9a\u4e86CNPD\u7684\u5149\u63a2\u6d4b\u529b\uff0c\u63d0\u9ad8\u4e86\u6709\u673a-\u65e0\u673a\u6742\u5316\u9499\u949b\u77ff\u5149\u7535\u63a2\u6d4b\u5668\u7684\u6f5c\u5728\u5e94\u7528\u3002<\/p>\n

\u6587\u732e\u94fe\u63a5\uff1a<\/strong>Passivated Single-Crystalline CH3<\/sub>NH3<\/sub>PbI3<\/sub> Nanowire Photodetector with High Detectivity and Polarization Sensitivity<\/a>\uff08NANO Letters\uff0c2016\uff0cDOI\uff1a10.1021\/acs.nanolett.6b03119\uff09<\/p>\n

\u672c\u6587\u7531\u6750\u6599\u4eba\u7f16\u8f91\u90e8\u7535\u5b50\u7535\u5de5\u5b66\u672f\u7ec4\u5927\u9ed1\u5929\u4f9b\u7a3f\uff0c\u6750\u6599\u725b\u7f16\u8f91\u6574\u7406\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<\/a>\u3002<\/p>\n

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\u6750\u6599\u6d4b\u8bd5\uff0c\u6570\u636e\u5206\u6790\uff0c\u4e0a<\/strong>\u6d4b\u8bd5\u8c37<\/strong><\/a>\uff01<\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"

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