{"id":222925,"date":"2021-06-10T06:13:01","date_gmt":"2021-06-09T22:13:01","guid":{"rendered":"http:\/\/www.cailiaoniu.com\/?p=222925"},"modified":"2021-06-09T19:13:15","modified_gmt":"2021-06-09T11:13:15","slug":"%e9%99%95%e8%a5%bf%e5%b8%88%e8%8c%83%e5%a4%a7%e5%ad%a6%e5%88%98%e7%94%9f%e5%bf%a0%e8%b5%b5%e5%a5%8eadv-sci-%e7%94%a8%e4%ba%8e%e5%85%89%e4%bc%8f%e7%9a%84%e5%8c%85%e5%90%ab%e5%af%b9%e7%a7%b0%e4%ba%8c","status":"publish","type":"post","link":"http:\/\/www.cailiaoniu.com\/?p=222925","title":{"rendered":"\u9655\u897f\u5e08\u8303\u5927\u5b66\u5218\u751f\u5fe0&\u8d75\u594eAdv. Sci.:\u7528\u4e8e\u5149\u4f0f\u7684\u5305\u542b\u5bf9\u79f0\u4e8c\u94f5\u79bb\u5b50\u7684\u4e8c\u7ef4\u5364\u5316\u7269\u9499\u949b\u77ff\u7684\u6709\u6548\u76f8\u4f4d\u5bf9\u51c6"},"content":{"rendered":"

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

\u6709\u673a\u548c\u65e0\u673a\u5364\u5316\u7269\u9499\u949b\u77ff\u4f5c\u4e3a\u4e0b\u4e00\u4ee3\u5149\u4f0f\u6750\u6599\u5177\u6709\u5438\u6536\u7cfb\u6570\u9ad8\u3001\u8f7d\u6d41\u5b50\u5bff\u547d\u957f\u3001\u8f7d\u6d41\u5b50\u8fc1\u79fb\u7387\u5927\u3001\u5236\u5907\u65b9\u6cd5\u7b80\u5355\u7b49\u4f18\u70b9\u3002\u57fa\u4e8e\u8fd9\u79cd\u6750\u6599\u5b9e\u73b0\u7684\u5149\u4f0f\u6548\u7387\u5df2\u8d85\u8fc725%\uff0c\u5e76\u6b63\u5728\u9010\u6b65\u6269\u5927\u89c4\u6a21\u3002\u7136\u800c\uff0c3D \u9499\u949b\u77ff\u5728\u66b4\u9732\u4e8e\u6e7f\u6c14\u3001\u70ed\u548c\u5149\u65f6\u7684\u957f\u671f\u7a33\u5b9a\u6027\u6781\u5dee\uff0c\u8fd9\u662f\u5176\u5b9e\u9645\u5e94\u7528\u7684\u81f4\u547d\u7f3a\u70b9\u3002\u63d0\u9ad8\u5176\u7a33\u5b9a\u6027\u7684\u5e38\u7528\u65b9\u6cd5\u5305\u62ec\u754c\u9762\u5de5\u7a0b\u3001\u5c01\u88c5\u548c\u63a2\u7d22\u65b0\u578b\u5149\u654f\u6750\u6599\u3002\u8fd1\u5e74\u6765\uff0c\u57fa\u4e8e 2D \u6709\u673a\u91d1\u5c5e\u5364\u5316\u7269\u9499\u949b\u77ff\u7684\u592a\u9633\u80fd\u7535\u6c60\u663e\u793a\u51fa\u826f\u597d\u7684\u957f\u671f\u7a33\u5b9a\u6027\uff0c\u5e76\u4e14\u6548\u7387\u4e0d\u65ad\u63d0\u9ad8\uff0c\u4f46\u4ecd\u843d\u540e\u4e8e 3D \u540c\u7c7b\u4ea7\u54c1\uff0c\u90e8\u5206\u539f\u56e0\u662f\u91cf\u5b50\u9631\u7684\u91cf\u5b50\u9650\u5236\u548c\u4f4e\u8f7d\u6d41\u5b50\u4f20\u8f93 (QW) \u7ed3\u6784\u3002<\/p>\n

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

\u7531\u5bf9\u79f0\u4e8c\u94f5\u9633\u79bb\u5b50\u7a33\u5b9a\u7684\u65b0\u578b 2D AA’n-1<\/sub>MnX3n+1<\/sub>\u00a0\u578b\u5364\u5316\u7269\u9499\u949b\u77ff\u7531\u4e8e\u5176\u8f83\u77ed\u7684\u5c42\u95f4\u8ddd\u79bb\u548c\u66f4\u597d\u7684\u7535\u8377\u4f20\u8f93\u6027\u80fd\u800c\u5728\u9ad8\u6027\u80fd\u592a\u9633\u80fd\u7535\u6c60 (PSC) \u4e2d\u5f15\u8d77\u4e86\u7814\u7a76\u5173\u6ce8\u3002\u7136\u800c\uff0c\u91cf\u5b50\u9631\uff08QW\uff09\u7684\u5206\u5e03\u63a7\u5236\u53ca\u5176\u5bf9\u5149\u7535\u7279\u6027\u7684\u5f71\u54cd\u5728\u5f88\u5927\u7a0b\u5ea6\u4e0a\u5c1a\u672a\u5f97\u5230\u6df1\u5165\u7814\u7a76\u3002\u9655\u897f\u5e08\u8303\u5927\u5b66\u5218\u751f\u5fe0&\u8d75\u594e<\/b><\/strong>\u901a\u8fc7\u819c\u5f62\u6210\u7684\u52a8\u6001\u63a7\u5236\u62a5\u9053\u4e86\u6709\u6548\u7684\u76f8\u4f4d\u5bf9\u9f50\uff0c\u4ee5\u6539\u5584\u4e8c\u7ef4\u9499\u949b\u77ff(BDA)(MA)n-1<\/sub>Pbn<\/sub>I3n+1<\/sub>\uff08BDA=1,4-\u4e01\u4e8c\u80fa\uff0c<n> = 4\uff09\u3002\u539f\u4f4d\u5149\u8c31\u663e\u793a\uff0c\u5728\u9499\u949b\u77ff\u6c89\u79ef\u8fc7\u7a0b\u4e2d\uff0c\u901a\u8fc7\u6dfb\u52a0\u5242\u7684\u65b9\u6cd5\u663e\u7740\u5ef6\u957f\u4e86\u7ed3\u6676\u7a97\u53e3\u3002\u4f5c\u8005\u53d1\u73b0\u5728\u5782\u76f4\u4e8e\u57fa\u677f\u7684\u65b9\u5411\u4e0a n \u503c\u66f4\u7cbe\u7ec6\u7684\u539a\u5ea6\u68af\u5ea6\u5bfc\u81f4 QW \u4e4b\u95f4\u66f4\u6709\u6548\u7684\u7535\u8377\u4f20\u8f93\uff0c\u5e76\u6291\u5236\u4e86\u6dfb\u52a0\u5242\u5904\u7406\u819c\u4e2d\u7684\u7535\u8377\u8026\u5408\u3002\u7ed3\u679c\u5b9e\u73b0\u4e86 14.4% \u7684\u529f\u7387\u8f6c\u6362\u6548\u7387\uff0c\u6bd4\u672a\u7ecf\u6dfb\u52a0\u5242\u5904\u7406\u7684\u5bf9\u7167\u9ad8 21%\u3002\u6b64\u5916\uff0c\u672a\u7ecf\u5c01\u88c5\u7684\u5668\u4ef6\u5728\u73af\u5883\u66b4\u9732 1200 \u5c0f\u65f6\u540e\u4fdd\u7559\u4e86\u5176\u521d\u59cb PCE \u7684 92%\u3002\u8be5\u6210\u679c\u4ee5\u9898\u4e3a\u201c<\/strong>Effective Phase-Alignment for 2D Halide Perovskites Incorporating Symmetric Diammonium Ion for Photovoltaics<\/strong>\u201d<\/strong>\u53d1\u8868\u5728Adv. Sci.<\/b><\/strong>\u4e0a<\/strong>\u3002<\/p>\n

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

\u56fe<\/b><\/strong>1<\/strong>.<\/strong>\u4e8c\u7ef4\u9499\u949b\u77ff (BDA)(MA)n-1<\/sub>Pbn<\/sub>I3n+1<\/sub>\u00a0(<n> = 4) \u7684\u592a\u9633\u80fd\u7535\u6c60\u7ed3\u6784\u548c\u8868\u5f81<\/p>\n

\"\"<\/p>\n

a) \u4e8c\u7ef4\u9499\u949b\u77ff (BDA)(MA)n-1<\/sub>Pbn<\/sub>I3n+1<\/sub>(<n> = 4) \u7684\u592a\u9633\u80fd\u7535\u6c60\u7ed3\u6784\u548c\u6676\u4f53\u7ed3\u6784b) \u4ece\u6bcf\u79cd\u7c7b\u578b\u7684 50 \u4e2a\u7535\u6c60\u4e2d\u786e\u5b9a\u7684\u5bf9\u7167\u548c\u4f18\u5316\uff08\u4f7f\u7528 6 mg\/mL MACl\uff09\u8bbe\u5907\u7684 PCE \u76f4\u65b9\u56fe c) J-V \u66f2\u7ebf d) \u7528\u4e8e\u63a7\u5236\u548c\u4f18\u5316\uff086 mg\/mL MACl\uff09\u8bbe\u5907\u7684 EQE \u548c\u96c6\u6210 Jsc<\/sub>\u00a0e) \u63a7\u5236\u548c\u4f18\u5316\u8bbe\u5907\u5728\u73af\u5883\u6761\u4ef6\u4e0b\u8d85\u8fc7 80 \u79d2\u7684\u6700\u5927\u529f\u7387\u70b9\u8ddf\u8e2a\u4e0b\u7684\u7a33\u5b9a\u8f93\u51fa\u529f\u7387<\/p>\n

\u56fe2.<\/b><\/strong>\u4e8c\u7ef4 (BDA)(MA)<\/b><\/strong>n-1<\/b><\/sub><\/strong>Pb<\/b><\/strong>n<\/b><\/sub><\/strong>I<\/b><\/strong>3n+1<\/b><\/sub><\/strong>\u00a0(<n>=4) \u9499\u949b\u77ff\u8584\u819c<\/b><\/strong>\u7684\u8868\u5f81<\/b><\/strong><\/p>\n

\"\"<\/p>\n

a,b) \u4f7f\u7528\u548c\u4e0d\u4f7f\u7528 MACl \u6c89\u79ef\u8fc7\u7a0b\u4e2d\u4e8c\u7ef4 (BDA)(MA)n-1<\/sub>Pbn<\/sub>I3n+1 <\/sub>(<n>=4) \u9499\u949b\u77ff\u8584\u819c\u7684\u539f\u4f4d\u7d2b\u5916-\u53ef\u89c1\u5438\u6536\u5149\u8c31 c) \u6709\u548c\u6ca1\u6709 MACl \u7684 2D (BDA)(MA)n-1<\/sub>Pbn<\/sub>I3n+1<\/sub>(<n>=4) \u8584\u819c\u7684\u7ed3\u6676\u7a97\u53e3 d-f) \u5bf9\u7167\u548c\u4f18\u5316\u8584\u819c\u7684\u5e73\u9762\u626b\u63cf\u7535\u5b50\u663e\u5fae\u955c (SEM) \u56fe\u50cf\u3001\u539f\u5b50\u529b\u663e\u5fae\u955c (AFM) \u56fe\u50cf\u548c\u6a2a\u622a\u9762 SEM \u56fe\u50cf g-h) X \u5c04\u7ebf\u884d\u5c04 (XRD) \u56fe\u6848\u548c\u5177\u6709\u5404\u79cd\u6dfb\u52a0\u5242\u6d53\u5ea6\u7684\u8584\u819c\u7684 (111) \u884d\u5c04\u5cf0\u7684 FWHM<\/p>\n

\u56fe<\/strong>3.<\/strong>\u5177\u6709\u4e0d\u540c\u6dfb\u52a0\u5242\u6d53\u5ea6\u7684 2D (BDA)(MA)<\/strong>n-1<\/sub><\/strong>Pb<\/strong>n<\/sub><\/strong>I<\/strong>3n+1<\/sub><\/strong>(\u3008n\u3009=4) \u9499\u949b\u77ff\u8584\u819c\u7684<\/strong>\u8868\u5f81<\/strong><\/p>\n

\"\"<\/p>\n

a) \u5177\u6709\u4e0d\u540c\u6dfb\u52a0\u5242\u6d53\u5ea6\u7684 2D (BDA)(MA)n-1<\/sub>Pbn<\/sub>I3n+1<\/sub>(\u3008n\u3009=4) \u9499\u949b\u77ff\u8584\u819c\u7684\u7d2b\u5916\u53ef\u89c1\u5438\u6536\u5149\u8c31 b) \u5177\u6709\u4e0d\u540c\u6dfb\u52a0\u5242\u6d53\u5ea6\u7684 2D(BDA)(MA)n-1<\/sub>Pbn<\/sub>I3n+1<\/sub>(\u3008n\u3009=4) \u9499\u949b\u77ff\u8584\u819c\u7684\u7a33\u6001\u5149\u81f4\u53d1\u5149 (PL) c) \u8584\u819c\u5728\u4e0d\u540c\u5ef6\u8fdf\u65f6\u95f4\u7684\u77ac\u6001\u5438\u6536 (TA) \u5149\u8c31 d) \u5728 t=1 ps \u548c 500 ps \u65f6\uff0c\u9876\u90e8\u548c\u5e95\u90e8\u6fc0\u53d1\u4e0b\u5bf9\u7167\u548c\u4f18\u5316\uff086 mg\/mL MACl\uff09\u8584\u819c\u7684 TA \u5149\u8c31 e) \u6839\u636e\u5ef6\u8fdf\u65f6\u95f4\u4e3a 1 ps \u7684 TA \u5149\u8c31\u4f30\u8ba1\uff0c\u5bf9\u7167\u548c\u4f18\u5316\uff086 mg\/mL MACl\uff09\u8584\u819c\u4e2d QW \u7684\u7ec4\u6210 f) \u6765\u81ea\u524d\u9a71\u4f53\u7684 (BDA)(MA)n-1<\/sub>Pbn<\/sub>I3n+1<\/sub>\u00a0(n =1\u2212\u221e) \u6750\u6599\u7684\u6676\u4f53\u5f62\u6210\u80fd g) \u4f18\u5316\u8584\u819c\u5728\u5e95\u90e8\u6fc0\u53d1\u4e0b\u6f02\u767d\u6062\u590d\u7684\u5f52\u4e00\u5316 TA \u52a8\u529b\u5b66 h) \u7cfb\u5217\u8584\u819c\u4f53\u76f8\u7684 TA \u52a8\u529b\u5b66 i) \u5177\u6709\u4e0d\u540c\u6dfb\u52a0\u5242\u6d53\u5ea6\u7684\u8584\u819c\u7684\u65f6\u95f4\u5206\u8fa8\u5149\u81f4\u53d1\u5149 (TRPL) \u5149\u8c31<\/p>\n

\u56fe<\/b><\/strong>4.\u5668\u4ef6\u7684\u7ed3\u6784\u4e0e\u8868\u5f81<\/strong><\/p>\n

\"\"<\/p>\n

a) \u5b8c\u6574\u592a\u9633\u80fd\u7535\u6c60\u7684\u5668\u4ef6\u7ed3\u6784b) \u7528\u4e8e\u63a7\u5236\u548c\u4f18\u5316\u8584\u819c\u7684\u7eaf\u7535\u5b50\u5668\u4ef6\u7684\u6697 I-V \u6d4b\u91cf\u7684\u6bd4\u8f83 c) \u4e0d\u540c MACl \u6d53\u5ea6\u8584\u819c\u7684\u9677\u9631\u6001\u5bc6\u5ea6\u548c\u7535\u5b50\u8fc1\u79fb\u7387 d) \u5177\u6709\u4e0d\u540c MACl \u6d53\u5ea6\u7684\u5668\u4ef6\u7684\u7535\u963b\u6297\u8c31 (EIS) \u6570\u636e<\/p>\n

\u56fe<\/b><\/strong>5<\/b><\/strong>.<\/b><\/strong>PCE\u8868\u5f81<\/b><\/strong><\/p>\n

\"\"<\/p>\n

a) \u672a\u5c01\u88c5\u66b4\u9732\u4e8e\u73af\u5883\u6761\u4ef650 \u5929\u7684\u5bf9\u7167\u548c\u4f18\u5316\u8bbe\u5907\u7684\u5f52\u4e00\u5316 PCE b) \u5728\u60f0\u6027\u6c14\u6c1b\u4e2d\uff0c\u5728 80 \u00b0C \u4e0b\u52a0\u70ed 23 \u5c0f\u65f6\uff0c\u76f8\u5e94\u975e\u5c01\u88c5\u5668\u4ef6\u7684\u5f52\u4e00\u5316 PCE<\/p>\n

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

\u4f5c\u8005\u5728\u7406\u89e3\u548c\u63a7\u5236 QW \u7684\u5f62\u6210\u53ca\u5176\u5bf9\u4f4e n (BDA)(MA)n-1<\/sub>Pbn<\/sub>I3n+1<\/sub>\u00a0(\u3008n\u3009=4) \u7684\u76f8\u4f4d\u5bf9\u51c6\u548c\u6700\u7ec8\u5149\u7535\u7279\u6027\u7684\u5f71\u54cd\u65b9\u9762\u53d6\u5f97\u4e86\u91cd\u8981\u8fdb\u5c55\u00a0\u7cfb\u7edf\u3002\u7ed3\u679c\u8868\u660e\uff0cMACl \u6dfb\u52a0\u5242\u663e\u7740\u5ef6\u957f\u4e86\u9499\u949b\u77ff\u6c89\u79ef\u8fc7\u7a0b\u4e2d\u7684\u7ed3\u6676\u7a97\u53e3\u3002\u8fd9\u4e3a QW \u6210\u6838\u548c\u751f\u957f\u63d0\u4f9b\u4e86\u66f4\u591a\u65f6\u95f4\uff0c\u4ece\u800c\u5bfc\u81f4\u66f4\u5927\u7684\u6676\u4f53\u5c3a\u5bf8\u3001\u66f4\u5c11\u7684\u9677\u9631\u5f62\u6210\u548c\u66f4\u7cbe\u7ec6\u7684 QW \u539a\u5ea6\u5206\u5e03\u68af\u5ea6\uff0c\u8fd9\u8fdb\u4e00\u6b65\u4fc3\u8fdb\u4e86\u7535\u8377\u8f6c\u79fb\u548c\u63d0\u53d6\u3002\u6700\u540e\uff0c\u6dfb\u52a0\u5242\u8f85\u52a9\u592a\u9633\u80fd\u7535\u6c60\u7684 PCE \u8fbe\u5230 14.38%\uff0c\u8fd9\u662f n \u2264 4\u00a0AA’n-1<\/sub>Mn<\/sub>X3n+1<\/sub>\u7684\u9ad8\u503c\u4e4b\u4e00\u3002\u8fd9\u4e9b\u5173\u4e8e\u6b64\u7c7b 2D \u9499\u949b\u77ff QW \u7684\u8584\u819c\u5f62\u6210\u548c\u76f8\u4f4d\u5bf9\u51c6\u7684\u91cd\u8981\u53d1\u73b0\u4e3a\u5b9e\u73b0\u66f4\u9ad8\u6548\u548c\u66f4\u7a33\u5b9a\u7684\u5149\u7535\u5668\u4ef6\u94fa\u5e73\u4e86\u9053\u8def\u3002<\/p>\n

\u6587\u732e\u94fe\u63a5<\/b><\/strong>\uff1aEffective Phase-Alignment for 2D Halide Perovskites Incorporating Symmetric Diammonium Ion for Photovoltaics. Adv. Sci., <\/em>202<\/strong>1<\/strong>, DOI:10.1002\/advs.202001433<\/p>\n

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