{"id":249351,"date":"2023-03-30T06:13:24","date_gmt":"2023-03-29T22:13:24","guid":{"rendered":"\/\/m.iemloyee.com\/?p=249351"},"modified":"2023-03-29T15:11:50","modified_gmt":"2023-03-29T07:11:50","slug":"nature-%e9%92%99%e9%92%9b%e7%9f%bf%e5%9f%ba%e4%b8%89%e7%bb%93%e5%85%89%e4%bc%8f%e6%95%88%e7%8e%87%e5%92%8c%e7%a8%b3%e5%ae%9a%e6%80%a7%e7%9a%84%e6%96%b0%e7%aa%81%e7%a0%b4","status":"publish","type":"post","link":"\/\/m.iemloyee.com\/?p=249351","title":{"rendered":"Nature: \u9499\u949b\u77ff\u57fa\u4e09\u7ed3\u5149\u4f0f\u6548\u7387\u548c\u7a33\u5b9a\u6027\u7684\u65b0\u7a81\u7834"},"content":{"rendered":"

\u3010\u5de5\u4f5c\u603b\u7ed3\u3011<\/b><\/strong><\/p>\n

\uff081\uff09\u673a\u5236\uff1a\u589e\u52a0\u9499\u949b\u77ff\u7684\u6676\u683c\u6270\u4e71\u53ef\u4ee5\u6291\u5236\u9499\u949b\u77ff\u5364\u7d20\u79bb\u5b50\u8fc1\u79fb\u548c\u5149\u8bf1\u4f7f\u76f8\u5206\u79bb\u3002<\/p>\n

\uff082\uff09\u6750\u6599\uff1a\u57fa\u4e8e\u6b64\u673a\u5236\u5f00\u53d1\u51fa\u5149\u7a33\u5b9a\u76842.0 eV Rb\/Cs\u5168\u65e0\u673a\u9499\u949b\u77ff\u6750\u6599\u3002<\/p>\n

\uff083\uff09\u5668\u4ef6\uff1a\u5c06\u6b64\u5168\u65e0\u673a\u9499\u949b\u77ff\u6750\u6599\u7528\u4e8e\u4e09\u7ed3\u5149\u4f0f\u7684\u9876\u90e8\u7535\u6c60\uff0c\u4f7f\u9499\u949b\u77ff\u57fa\u4e09\u7ed3\u5149\u4f0f\u6548\u7387\u4ece\u539f\u6765\u768420%\u6539\u8fdb\u523024%\uff0c\u5de5\u4f5c\u7a33\u5b9a\u6027\u7531\u539f\u6765\u7684\u4e0d\u8db3\u4e00\u5c0f\u65f6\u63d0\u5347\u5230\u5927\u4e8e400\u5c0f\u65f6\uff0c\u5b9e\u73b0\u4e86\u9499\u949b\u77ff\u57fa\u4e09\u7ed3\u5149\u4f0f\u7684\u9996\u4e2a\u62a5\u9053\u7684\u8ba4\u8bc1\u6548\u7387\uff0823.3%\uff09\u3002<\/p>\n

\u3010\u6210\u679c\u4ecb\u7ecd<\/strong>\u3011<\/p>\n

\u591a\u7ed3\u5149\u4f0f\u80fd\u591f\u51cf\u5c0f\u70ed\u5f1b\u8c6b\u635f\u5931\u548c\u5438\u6536\u635f\u5931\u800c\u7a81\u7834\u5355\u8282\u5149\u4f0f\u7684\u6548\u7387\u6781\u9650\uff0c\u9499\u949b\u77ff\u7531\u4e8e\u5177\u6709\u826f\u597d\u7684\u5149\u7535\u6027\u8d28\uff0c\u53ef\u8c03\u63a7\u7684\u5e26\u9699\u548c\u6613\u4e8e\u5236\u5907\u7b49\u4f18\u70b9\uff0c\u662f\u7406\u60f3\u7684\u591a\u7ed3\u5149\u4f0f\u5438\u5149\u6750\u6599\u3002\u4f46\u5bbd\u5e26\u9699\uff08> 1.65 eV\uff09\u7684I\/Br\u6df7\u5408\u7684\u9499\u949b\u77ff\u5438\u5149\u6750\u6599\u9762\u4e34\u7740\u5149\u8bf1\u4f7f\u76f8\u5206\u79bb(LIPS)\u7684\u95ee\u9898\uff0c\u8fd9\u4e25\u91cd\u9650\u5236\u4e86\u591a\u7ed3\u5149\u4f0f\u5668\u4ef6\u7684\u7a33\u5b9a\u6027\u548c\u6548\u7387\u3002\u9499\u949b\u77ff\u57fa\u4e09\u7ed3\u5149\u4f0f\uff08\u5305\u62ec\u5168\u9499\u949b\u77ff\uff0c\u9499\u949b\u77ff\/\u9499\u949b\u77ff\/Si\uff0c\u9499\u949b\u77ff\/\u9499\u949b\u77ff\/CuInGaSe\u7b49\uff09\u76f8\u5bf9\u4e8e\u5f97\u5230\u5f88\u597d\u53d1\u5c55\u7684\u5355\u8282\u548c\u4e24\u7ed3\u5149\u4f0f\u5177\u6709\u66f4\u597d\u7684\u7406\u8bba\u6548\u7387\uff0c\u4f46\u5e94\u7528\u4e8e\u4ed6\u4eec\u9876\u90e8\u7535\u6c60\u7684~2.0 eV\u7684\u9499\u949b\u77ff\u6b63\u9762\u4e34\u7684\u4e25\u91cd\u7684\u5149\u8bf1\u4f7f\u76f8\u5206\u79bb\u95ee\u9898\uff0c\u4f7f\u9499\u949b\u77ff\u57fa\u4e09\u7ed3\u5149\u4f0f\u7684\u6548\u7387\u53ea\u670920%\uff0c\u5de5\u4f5c\u7a33\u5b9a\u6027\u5c0f\u4e8e1\u5c0f\u65f6\u3002<\/p>\n

\u6211\u4eec\u6ce8\u610f\u5230\uff0c\u4ee5\u524d\u62a5\u9053\u7684\u6291\u5236I\/Br\u6df7\u5408\u7684\u9499\u949b\u77ff\u6750\u6599\u672c\u8eab\u7684\u5149\u8bf1\u4f7f\u76f8\u5206\u79bb\u7684\u65b9\u6cd5\uff0c\u4e3b\u8981\u5305\u62ec\u6dfb\u52a0\u5c0f\u7684A\u4f4d\u9633\u79bb\u5b50\u548c\u589e\u5927\u8f83\u5927X\u4f4d\u7898\u9634\u79bb\u5b50\u7684\u6d53\u5ea6\uff0c\u8fd9\u4e24\u79cd\u65b9\u6cd5\u90fd\u5bfc\u81f4\u4e86\u9499\u949b\u77ff\u6676\u683c\u6270\u4e71\uff08\u6676\u683c\u626d\u66f2\uff09\u7684\u53d8\u5927\uff0c\u4e8e\u662f\uff0c\u6211\u4eec\u63d0\u51fa\u4e86\u4e00\u4e2a\u731c\u60f3\uff1a\u589e\u5927I\/Br\u6df7\u5408\u7684\u9499\u949b\u77ff\u6676\u683c\u6270\u4e71\uff0c\u53ef\u4ee5\u6709\u6548\u6291\u5236\u9499\u949b\u77ff\u7684\u5149\u8bf1\u4f7f\u76f8\u5206\u79bb\u3002<\/p>\n

\u57fa\u4e8e\u8fd9\u4e2a\u731c\u60f3\uff0c\u6211\u4eec\u5bf9\u76ee\u524d\u62a5\u9053\u7684\u9499\u949b\u77ff\u6750\u6599\u4f53\u7cfb\u8fdb\u884c\u4e86\u5bf9\u6bd4\uff0c\u5728\u76f8\u4f3c\u5e26\u9699\u4e0b\uff0c\u76f8\u5bf9\u4e8e\u7814\u7a76\u66f4\u4e3a\u5e7f\u6cdb\u7684\u6709\u673a\u65e0\u673a\u6742\u5316\u9499\u949b\u77ff\uff0c\u94ef\u57fa\u65e0\u673a\u9499\u949b\u77ff\u5177\u6709\u66f4\u5c0f\u7684A\u4f4d\u9633\u79bb\u5b50\u534a\u5f84\u548c\u66f4\u591a\u7684\u8f83\u5927\u7684I\u8d1f\u79bb\u5b50\uff0c\u5177\u6709\u66f4\u5927\u7a0b\u5ea6\u7684\u6676\u683c\u6270\u4e71\u548c\u66f4\u597d\u7684\u5149\u7167\u7a33\u5b9a\u6027\u3002\u4f46\u662f\uff0c2.0 eV\u5e26\u9699\u7684Cs\u57fa\u65e0\u673a\u9499\u949b\u77ff\uff08\u5982CsPbI1.4<\/sub>Br1.6<\/sub>\uff09\u4ecd\u7136\u9762\u4e34\u5149\u8bf1\u4f7f\u76f8\u5206\u79bb\u7684\u6311\u6218\u3002<\/p>\n

\u6211\u4eec\u53d1\u73b0\uff0c\u6bd4Cs+<\/sup>\u66f4\u5c0f\u7684Rb+<\/sup>\uff0c\u80fd\u591f\u88ab\u63ba\u6742\u8fdb\u5165I\/Br\u6df7\u5408\u7684\u65e0\u673a\u9499\u949b\u77ff\u6676\u683c\u4e2d\uff0cRb\u63ba\u6742\u7684\u6700\u5927\u542b\u91cf\u548cBr\u7684\u542b\u91cf\u6b63\u76f8\u5173\u3002Rb\u7684\u6676\u683c\u63ba\u6742\u62d3\u5bbd\u4e86\u65e0\u673a\u9499\u949b\u77ff\u7684\u5e26\u9699\uff0c\u8fd9\u610f\u5473\u7740\u76f8\u5bf9\u4e8eCs\u57fa\u9499\u949b\u77ff\uff0cRb\/Cs\u9499\u949b\u77ff\u9700\u8981\u66f4\u591a\u7684I\u5b9e\u73b02.0 eV\u7684\u5e26\u9699\uff08\u5982~2.0 eV Rb0.15<\/sub>Cs0.85<\/sub>PbI1.75<\/sub>Br1.25<\/sub>, \u76f8\u5bf9\u4e8e\u00a0~2.0 eV CsPbI1.4<\/sub>Br1.6<\/sub>\uff09\u3002\u76f8\u5bf9\u4e8eCs\u57fa\u65e0\u673a\u9499\u949b\u77ff\uff0c\u5177\u6709\u66f4\u5927\u7684\u6676\u683c\u6270\u4e71\u76842.0 eV Rb\/Cs\u9499\u949b\u77ff\u5c55\u73b0\u51fa\u88ab\u6291\u5236\u7684\u5149\u8bf1\u4f7f\u76f8\u5206\u79bb\u3002\u6211\u4eec\u8fdb\u4e00\u6b65\u7684\u7814\u7a76\u8bc1\u5b9e\uff0c\u589e\u5927I\/Br\u6df7\u5408\u7684\u9499\u949b\u77ff\u6676\u683c\u6270\u4e71\uff0c\u51cf\u5c0f\u4e86A\u4f4d\u9633\u79bb\u5b50\uff08\u5982Cs\u548cRb\uff09\u548cI\u7684\u5e73\u5747\u539f\u5b50\u95f4\u8ddd\u79bb\uff0c\u8fdb\u800c\u589e\u52a0\u4e86\u5364\u7d20\u79bb\u5b50\u8fc1\u79fb\u80fd\u91cf\u52bf\u5792\uff0c\u4ece\u800c\u6291\u5236\u4e86\u5364\u7d20\u7684\u79bb\u5b50\u8fc1\u79fb\u548c\u5149\u8bf1\u4f7f\u76f8\u5206\u79bb\u3002\u57fa\u4e8e~2.0 eV\u7684Rb\/Cs\u65e0\u673a\u9499\u949b\u77ff\uff0c\u6211\u4eec\u5b9e\u73b0\u4e8624.3%\u7684\u5168\u9499\u949b\u77ff\u4e09\u7ed3\u592a\u9633\u80fd\u7535\u6c60\u7684\u5b9e\u9a8c\u5ba4\u6548\u7387\uff0c\u6211\u4eec\u4e5f\u5b9e\u73b0\u4e86\u7b2c\u4e00\u4e2a\u62a5\u9053\u7684\u88ab\u8ba4\u8bc1\u7684\u9499\u949b\u77ff\u57fa\u4e09\u7ed3\u592a\u9633\u80fd\u7535\u6c60\u6548\u7387\uff0823.3%\u7684\u51c6\u7a33\u6001\u6548\u7387\uff09\u3002\u5668\u4ef6\u5728\u6301\u7eed\u5de5\u4f5c420\u5c0f\u65f6\u540e\uff0c\u4fdd\u6301\u4e86\u521d\u59cb\u6548\u7387\u768480%\u3002\u8be5\u6210\u679c\u8fd1\u65e5\u4ee5\u9898\u4e3a\u201cSuppressed phase segregation for triple-junction perovskite solar cells\u201d\u53d1\u8868\u5728Nature<\/i><\/em>\u4e0a\u3002<\/p>\n

\"\"<\/a><\/p>\n

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

\"\"<\/p>\n

\u56fe 1 | Rb\/Cs \u6df7\u5408\u9633\u79bb\u5b50\u65e0\u673a\u9499\u949b\u77ff\u7684\u6027\u8d28\u3002 a\uff0c\u5149\u8bf1\u4f7f\u76f8\u5206\u79bb\u6291\u5236\u673a\u5236\u7684\u793a\u610f\u56fe\u3002 b, c, Rbx<\/sub>Cs1-x<\/sub>PbI1.75<\/sub>Br1.25<\/sub>\u00a0(x = 0, 0.05, 0.1, 0.15, 0.2)\u00a0\u7684\u7d2b\u5916-\u53ef\u89c1\u5438\u6536\u5149\u8c31\u548c XRD \u56fe\u8c31\u3002 d\uff0c Rb \u63ba\u6742\u94ef\u94c5\u5364\u5316\u7269\u7684 133<\/sup>Cs \u548c 87<\/sup>Rb \u56fa\u6001\u6838\u78c1\u8c31\u3002e\uff0c\u5728Rbx<\/sub>Cs1-x<\/sub>PbI2<\/sub>Br, Rbx<\/sub>Cs1-x<\/sub>PbI1.75<\/sub>Br1.25<\/sub>, \u548c Rbx<\/sub>Cs1-x<\/sub>PbI1.5<\/sub>Br1.5<\/sub>\u5355\u7ed3\u592a\u9633\u80fd\u7535\u6c60\u4e2d\uff0c\u5f00\u8def\u7535\u538bV<\/i><\/em>OC<\/sub>\u00a0\u4e0eRb \u63ba\u6742\u542b\u91cf\u7684\u5173\u7cfb\u3002 f\uff0cDFT \u8ba1\u7b97\u7684\u4ea5\u59c6\u970d\u5179\u81ea\u7531\u80fd \u0394F\uff08\u53ef\u4ee5\u89c6\u4e3a\u70ed\u529b\u5b66\u9a71\u52a8\u529b\uff09\u3002<\/p>\n

\u7814\u7a76\u4e2d\u7d2b\u5916-\u53ef\u89c1\u5438\u6536\u5149\u8c31\uff0cXRD \u56fe\u8c31\u548c\u56fa\u6001\u6838\u78c1\uff0c\u8bc1\u5b9e\u4e86Rb\u80fd\u591f\u63ba\u6742\u8fdb\u5165I\/Br\u6df7\u5408\u7684Cs\u57fa\u65e0\u673a\u9499\u949b\u77ff\u6676\u683c\u4e2d\uff0c\u4e14Rb\u7684\u63ba\u6742\u5bfc\u81f4\u4e86\u5e26\u9699\u7684\u589e\u5927\u3002\u5f00\u8def\u7535\u538b\u548cRb\u542b\u91cf\u5173\u7cfb\u56fe\u5c55\u793a\uff0c\u968f\u7740Br\u542b\u91cf\u7684\u589e\u52a0\uff0c\u8fbe\u5230\u6700\u5927\u7535\u538b\u503c\u7684Rb\u542b\u91cf\u4e5f\u589e\u52a0\u3002\u57282.0 eV\u53ca\u4ee5\u4e0b\u5e26\u9699\u7684\u5668\u4ef6\u4e2d\uff0c2.0 eV\u00a0Rb0.15<\/sub>Cs0.85<\/sub>PbI1.75<\/sub>Br1.25<\/sub>\u5c55\u73b0\u51fa\u6700\u597d\u7684\u7535\u538b\u503c\uff0c\u56e0\u6b64\uff0c~2.0 eV Rb0.15<\/sub>Cs0.85<\/sub>PbI1.75<\/sub>Br1.25<\/sub>\u88ab\u9009\u4e3a\u76ee\u6807\u7814\u7a76\u5bf9\u8c61\u3002\u76f8\u5bf9\u4e8e\u76ee\u6807\u7814\u7a76\u5bf9\u8c61\uff0c\u5177\u6709\u76f8\u540c\u5e26\u9699\u7684~2.0 eV CsPbI1.4<\/sub>Br1.6<\/sub>\u00a0\u548c\u5177\u6709\u76f8\u540cI\/Br\u6bd4\u7684 CsPbI1.75<\/sub>Br1.25<\/sub>\u00a0\u88ab\u9009\u4e3a\u53c2\u6bd4\u5bf9\u8c61\u3002<\/p>\n

\u4ea5\u59c6\u970d\u5179\u81ea\u7531\u80fd\u7684\u8ba1\u7b97\u5c55\u793a\u968f\u7740 Br \u542b\u91cf\u7684\u589e\u52a0\uff0cRb\/Cs \u6df7\u5408\u9633\u79bb\u5b50\u9499\u949b\u77ff\u5177\u6709\u66f4\u6df1\u7684\u4ea5\u59c6\u970d\u5179\u81ea\u7531\u80fd\uff08\u66f4\u5927\u7684\u70ed\u529b\u5b66\u9a71\u52a8\u529b\uff09\uff0c\u56e0\u6b64\uff0c\u65e0\u673a\u9499\u949b\u77ff\u4e2d Rb \u63ba\u6742\u542b\u91cf\u7684\u4e0a\u9650\u4e0e Br \u542b\u91cf\u6b63\u76f8\u5173\uff0c\u8fd9\u4e0e\u63baRb\u65f6\u5bccBr\u9499\u949b\u77ff\u70ed\u529b\u5b66\u9a71\u52a8\u529b\u8f83\u5927\u6709\u5173\u3002<\/p>\n

\u00a0<\/sub><\/p>\n

\"\"<\/b><\/strong><\/p>\n

\u56fe 2 |\u6291\u5236\u5149\u8bf1\u4f7f\u76f8\u5206\u79bb\u7684\u73b0\u8c61\u548c\u673a\u5236\u3002 a-c\uff0cCsPbI1.4<\/sub>Br1.6<\/sub>, CsPbI1.75<\/sub>Br1.25<\/sub>\u00a0\u548c Rb0.15<\/sub>Cs0.85<\/sub>PbI1.75<\/sub>Br1.25<\/sub>\u00a0\u9499\u949b\u77ff\u8584\u819c\u5206\u522b\u5728\u4e00\u4e2a\u6a21\u62df\u592a\u9633\u5149\u7167\u5c04\u4e0b60\u5206\u949f\u7684\u5149\u81f4\u53d1\u5149\uff08PL\uff09\u5149\u8c31\u3002 d\u3001e\uff0cCsPbI1.4<\/sub>Br1.6<\/sub>\u00a0& CsPbI1.75<\/sub>Br1.25<\/sub>\u00a0(d) \u548c Rb0.15<\/sub>Cs0.85<\/sub>PbI1.75<\/sub>Br1.25<\/sub>\u00a0(e) \u7684\u6676\u4f53\u7ed3\u6784\u3002f\u3001g\uff0cCsPbI1.4<\/sub>Br1.6<\/sub>, CsPbI1.75<\/sub>Br1.25<\/sub>\u00a0\u548c Rb0.15<\/sub>Cs0.85<\/sub>PbI1.75<\/sub>Br1.25<\/sub>\u00a0\u7684\u77ac\u6001\u79bb\u5b50\u8fc1\u79fb\u7535\u6d41 (f) \u548c\u8ba1\u7b97\u7684\u8fc1\u79fb\u79bb\u5b50\u6d53\u5ea6 (g)\u3002 h-j\uff0cDFT\u8ba1\u7b97\u7684CsPbI1.4<\/sub>Br1.6<\/sub>, CsPbI1.75<\/sub>Br1.25<\/sub>\u00a0\u548c Rb0.15<\/sub>Cs0.85<\/sub>PbI1.75<\/sub>Br1.25<\/sub>\u9499\u949b\u77ff\u7684\u5e73\u5747\u2220Pb\u2013X\u2013Pb (X = I, Br) (h)\uff0c\u5e73\u5747A\u00b7\u00b7\u00b7X\u539f\u5b50\u95f4\u8ddd\u79bb\u00a0(i)\uff0c\u4ee5\u53caI (\u6216Br) \u5230VI (\u6216VBr) \u7684\u5364\u7d20\u79bb\u5b50\u8fc1\u79fb\u80fd\u91cf\u52bf\u5792\u00a0(j)<\/p>\n

\u5149\u81f4\u53d1\u5149\uff08PL\uff09\u56fe\u5c55\u793aRb\u7684\u5f15\u5165\u548cI\u542b\u91cf\u7684\u589e\u591a\u5747\u6291\u5236\u4e86\u9499\u949b\u77ff\u7684\u5149\u8bf1\u4f7f\u76f8\u5206\u79bb\u3002\u6676\u4f53\u7ed3\u6784\u5c55\u793aRb\u7684\u5f15\u5165\u548cI\u542b\u91cf\u7684\u589e\u591a\uff0c\u5bfc\u81f4\u9499\u949b\u77ff\u6676\u683c\u626d\u66f2\u66f4\u4e3a\u4e25\u91cd\u3002\u77ac\u6001\u79bb\u5b50\u8fc1\u79fb\u7535\u6d41\u548c\u8fc1\u79fb\u79bb\u5b50\u6d53\u5ea6\u5c55\u793aRb\/Cs\u65e0\u673a\u9499\u949b\u77ff\u5177\u6709\u66f4\u4f4e\u7684\u79bb\u5b50\u8fc1\u79fb\u6d53\u5ea6\u3002\u8ba1\u7b97\u5c55\u793a\u968f\u7740Rb\u7684\u5f15\u5165\u6216\u8005I\u542b\u91cf\u7684\u589e\u591a\uff0c\u2220Pb\u2013I\u2013Pb\u9010\u6e10\u51cf\u5c0f\uff08\u610f\u5473\u7740I\u4f4d\u626d\u66f2\u53d8\u5927\uff09\u3001Cs\u4e0eI\u7684\u5e73\u5747\u539f\u5b50\u8ddd\u79bb\u9010\u6e10\u51cf\u5c0f\u3001I\u5230I\u7f3a\u9677\u7684\u79bb\u5b50\u8fc1\u79fb\u80fd\u91cf\u52bf\u5792\u9010\u6b65\u589e\u5927\u3002I\u5230I\u7f3a\u9677\u7684\u79bb\u5b50\u8fc1\u79fb\u80fd\u91cf\u52bf\u5792\u5728\u4e0d\u540c\u80fd\u91cf\u52bf\u5792\u4e2d\u6700\u4f4e\uff0cI\u7684\u79bb\u5b50\u8fc1\u79fb\u662f\u5364\u7d20\u8fc1\u79fb\u7684\u4e3b\u8981\u65b9\u5f0f\uff0c\u56e0\u6b64\u8fd9\u91cc\u4e3b\u8981\u8003\u8651\u7898\u7684\u79bb\u5b50\u8fc1\u79fb\u7684\u60c5\u51b5\u3002\u57fa\u4e8e\u4e0a\u9762\u7684\u8ba8\u8bba\uff0c\u5f97\u51fa\u5982\u4e0b\u7ed3\u8bba\uff1a\u589e\u5927I\/Br\u6df7\u5408\u7684\u9499\u949b\u77ff\u6676\u683c\u6270\u4e71\uff0c\u51cf\u5c0f\u4e86A\u4f4d\u9633\u79bb\u5b50\uff08\u5982Cs\u548cRb\uff09\u548cI\u7684\u5e73\u5747\u539f\u5b50\u8ddd\u79bb\uff0c\u8fdb\u800c\u589e\u52a0\u4e86\u5364\u7d20\u79bb\u5b50\u8fc1\u79fb\u80fd\u91cf\u52bf\u5792\uff0c\u4ece\u800c\u6291\u5236\u4e86\u5364\u7d20\u7684\u79bb\u5b50\u8fc1\u79fb\u548c\u5149\u8bf1\u4f7f\u76f8\u5206\u79bb\u3002\u8fd9\u5f88\u597d\u7684\u652f\u6301\u6211\u4eec\u7684\u731c\u6d4b\u3002<\/p>\n

\"\"<\/p>\n

\u56fe 3 | 2.0 eV \u5355\u7ed3\u592a\u9633\u80fd\u7535\u6c60\u7684\u5149\u4f0f\u6027\u80fd\u3002 a\u3001b\u30012.0 eV CsPbI1.4<\/sub>Br1.6<\/sub>\u548c Rb0.15<\/sub>Cs0.85<\/sub>PbI1.75<\/sub>Br1.25<\/sub>\u9499\u949b\u77ff\u7684\u5355\u8282\u592a\u9633\u80fd\u7535\u6c60\u7535\u6d41\u5bc6\u5ea6\u548c\u7535\u538b\u66f2\u7ebf\u548c\u7a33\u5b9a\u529f\u7387\u8f93\u51fa\u66f2\u7ebf\u3002 c\u3001CsPbI1.4<\/sub>Br1.6<\/sub>\u5668\u4ef6\uff0841\u4e2a\u6837\u54c1\uff09\u548cRb0.15<\/sub>Cs0.85<\/sub>PbI1.75<\/sub>Br1.25<\/sub>\u5668\u4ef6\uff0854\u4e2a\u6837\u54c1\uff09\u7684\u6548\u7387\uff08PCE\uff09\uff0c\u5f00\u8def\u7535\u538b\uff08V<\/i><\/em>OC<\/sub>\uff09\u77ed\u8def\u7535\u6d41\uff08J<\/i><\/em>SC<\/sub>\uff09\u548c\u586b\u5145\u56e0\u5b50\uff08FF\uff09\u7edf\u8ba1\u3002d\u3001\u4ece\u8f83\u5927\u7684 100 \u00b5m x 100 \u00b5m \u56fe\u50cf\u4e2d\u83b7\u53d6\u7684 CsPbI1.4<\/sub>Br1.6<\/sub>\u548c Rb0.15<\/sub>Cs0.85<\/sub>PbI1.75<\/sub>Br1.25<\/sub>\u9499\u949b\u77ff\u7684\u51c6\u8d39\u7c73\u80fd\u7ea7\u5206\u88c2(QFLS) \u50cf\u7d20\u503c\u76f4\u65b9\u56fe\u3002 e\uff0cCsPbI1.4<\/sub>Br1.6<\/sub>\u548c Rb0.15<\/sub>Cs0.85<\/sub>PbI1.75<\/sub>Br1.25<\/sub>\u8584\u819c\u7684\u5149\u70ed\u504f\u8f6c\u5149\u8c31\uff08PDS\uff09 \u7684 Near-Eg \u5438\u6536\u7cfb\u6570 (\u03b1) \u5149\u8c31\u3002\u63d2\u56fe\u662f\u4ece PDS \u6d4b\u91cf\u4e2d\u63d0\u53d6\u7684 Urbach \u80fd\u91cf\u3002<\/p>\n

 <\/p>\n

\u8fd9\u4e9b\u5355\u8282\u5668\u4ef6\u7684\u8868\u5f81\uff0c\u53cd\u6620\u51fa\u5728~2.0 eV\u5e26\u9699\u4e0b\uff0c\u76f8\u5bf9\u4e8eCs\u57fa\u5168\u65e0\u673a\u9499\u949b\u77ff\uff0cRb\/Cs\u5168\u65e0\u673a\u9499\u949b\u77ff\u592a\u9633\u80fd\u7535\u6c60\u5c55\u73b0\u51fa\u66f4\u9ad8\u7684\u5668\u4ef6\u6548\u7387\u548c\u66f4\u597d\u7684\u91cd\u590d\u6027\u3002<\/p>\n

 <\/p>\n

\"\"<\/p>\n

\u56fe 4 |\u5168\u9499\u949b\u77ff\u4e09\u7ed3\u592a\u9633\u80fd\u7535\u6c60\u7684\u5149\u4f0f\u6027\u80fd\u548c\u7a33\u5b9a\u6027\u3002 a\uff0c\u5168\u9499\u949b\u77ff\u4e09\u7ed3\u592a\u9633\u80fd\u7535\u6c60\u7684\u5668\u4ef6\u7ed3\u6784\u793a\u610f\u56fe\u548c\u76f8\u5e94\u7684\u6a2a\u622a\u9762SEM\u56fe\u50cf\u3002\u6bd4\u4f8b\u5c3a\u4e3a 400 nm\u3002 b\uff0c\u51a0\u519b\u5168\u9499\u949b\u77ff\u4e09\u7ed3\u592a\u9633\u80fd\u7535\u6c60\u7684\u53cd\u5411\u548c\u6b63\u5411\u626b\u63cf\u7684 J-V \u66f2\u7ebf\u3002c\uff0c\u5168\u9499\u949b\u77ff\u4e09\u7ed3\u5668\u4ef6\u7684NREL\u8ba4\u8bc1\u7684\u51c6\u7a33\u6001\u7535\u6d41\u5bc6\u5ea6-\u7535\u538b\u66f2\u7ebf\u3002 d\uff0c\u4e09\u7ed3\u592a\u9633\u80fd\u7535\u6c60\u4e2d~2.0 eV\u3001~1.6 eV \u548c~1.22 eV \u5b50\u7535\u6c60\u7684 EQE \u66f2\u7ebf\u3002 e\uff0c\u5728\u4e00\u4e2a\u6a21\u62df\u592a\u9633\u5149\u7167\u4e0b\uff0c\u4e09\u7ed3\u592a\u9633\u80fd\u7535\u6c60\u5728\u5ba4\u6e29\u4e0b\u7684\u6700\u5927\u529f\u7387\u70b9\u7a33\u5b9a\u6027\u8ddf\u8e2a\u3002<\/p>\n

 <\/p>\n

\u57fa\u4e8e2.0 eV Rb\/Cs\u5168\u65e0\u673a\u9499\u949b\u77ff\u6750\u6599\u4f5c\u4e3a\u4e09\u7ed3\u5149\u4f0f\u9876\u90e8\u7535\u6c60\u7684\u5438\u5149\u6750\u6599\uff0c\u5168\u9499\u949b\u77ff\u4e09\u7ed3\u592a\u9633\u80fd\u7535\u6c60\u5b9e\u73b0\u4e8624.3%\u7684\u6548\u7387\uff0c\u5728NREL\u8ba4\u8bc1\u51fa23.3%\u7684\u51c6\u7a33\u6001\u6548\u7387\uff0c\u8fd9\u662f\u9499\u949b\u77ff\u57fa\u4e09\u7ed3\u592a\u9633\u80fd\u7535\u6c60\u7b2c\u4e00\u4e2a\u88ab\u62a5\u9053\u7684\u8ba4\u8bc1\u6548\u7387\uff0c\u5728420\u5c0f\u65f6\u6301\u7eed\u5de5\u4f5c\u540e\uff0c\u5168\u9499\u949b\u77ff\u4e09\u7ed3\u5149\u4f0f\u4fdd\u6301\u4e86\u521d\u59cb\u6548\u7387\u768480%\u3002<\/p>\n

 <\/p>\n

\u7b2c\u4e00\u4f5c\u8005\uff1a\u738b\u5728\u4f1f\uff0c\u66fe\u4e50\u851a\uff0c\u795d\u6850\uff0c\u9648\u660a<\/p>\n

\u5355\u4f4d\uff1a\u591a\u4f26\u591a\u5927\u5b66<\/p>\n

\u672c\u6587\u901a\u8baf\uff1aEdward Sargent<\/p>\n

\u672c\u6587\u7531\u4f5c\u8005\u4f9b\u7a3f<\/p>\n

 <\/p>\n

\u3010\u56e2\u961f\u4ecb\u7ecd\u3011\"\"<\/a><\/p>\n

\u738b\u5728\u4f1f\uff1a2021\u5e74\u81f3\u4eca\uff0c\u52a0\u62ff\u5927\u591a\u4f26\u591a\u5927\u5b66\u535a\u58eb\u540e\uff0c\u5f97\u5230Banting \u535a\u58eb\u540e\u5956\u5b66\u91d1\u7684\u8d44\u52a9\uff0c2020\u5e74\u83b7\u5f97\u745e\u58eb\u6d1b\u6851\u8054\u90a6\u7406\u5de5\u5b66\u9662\u535a\u58eb\u5b66\u4f4d\uff0c2016\u5e74\u83b7\u5f97\u4e2d\u56fd\u79d1\u5b66\u9662\u9752\u5c9b\u751f\u7269\u80fd\u6e90\u4e0e\u8fc7\u7a0b\u7814\u7a76\u6240\u7855\u58eb\u5b66\u4f4d\u3002\u4e3b\u8981\u7814\u7a76\u65b9\u5411\u4e3a\u9499\u949b\u77ff\u6750\u6599\u53ca\u5149\u4f0f\u5668\u4ef6\u7684\u7814\u7a76\uff0c\u5148\u540e\u4ee5\u7b2c\u4e00\u6216\u901a\u8baf\u4f5c\u8005\uff08\u542b\u5171\u540c\uff09\u8eab\u4efd\u5728Nature <\/i><\/em>(1), Nat. Energy <\/i><\/em>(1), Joule <\/i><\/em>(4), Matter (1), Nat. Commun.<\/i><\/em>(1), JACS <\/i><\/em>(1), Angew. Chem. Int. Ed.<\/i><\/em>(2), Adv. Mater.<\/i><\/em>(1)\u7b49\u671f\u520a\u4e0a\u53d1\u8868\u8bba\u6587\u5341\u4f59\u7bc7\u3002<\/p>\n

\"\"<\/a><\/p>\n

\u66fe\u4e50\u851a\uff1a2020\u5e749\u6708\u81f3\u4eca\uff0c\u591a\u4f26\u591a\u5927\u5b66Sargent Group\u5728\u8bfb\u535a\u58eb\uff0c2020\u5e746\u6708\u672c\u79d1\u6bd5\u4e1a\u4e8e\u4e0a\u6d77\u4ea4\u901a\u5927\u5b66\u6750\u6599\u79d1\u5b66\u4e0e\u5de5\u7a0b\u4e13\u4e1a\u3002\u4e3b\u8981\u7814\u7a76\u65b9\u5411\u4e3a\u9499\u949b\u77ff\u57fa\u4e09\u8282\u5149\u4f0f\u5668\u4ef6\u3002<\/p>\n

\"\"<\/a><\/p>\n

\u795d\u6850\uff1a2020\u5e74\u81f3\u4eca\uff0c\u591a\u4f26\u591a\u5927\u5b66\u535a\u58eb\u540e\uff0c2019\u5e74\u83b7\u5f97\u7f8e\u56fd\u675c\u514b\u5927\u5b66\u535a\u58eb\u5b66\u4f4d\uff0c2014\u5e74\u7855\u58eb\u6bd5\u4e1a\u4e8e\u590d\u65e6\u5927\u5b66\u6750\u6599\u79d1\u5b66\u7cfb\u3002\u4e3b\u8981\u7814\u7a76\u65b9\u5411\u4e3a\u7b2c\u4e00\u6027\u539f\u7406\u8ba1\u7b97\uff0c\u5148\u540e\u4ee5\u7b2c\u4e00\u6216\u901a\u8baf\u4f5c\u8005\uff08\u542b\u5171\u540c\uff09\u8eab\u4efd\u5728Nature, JACS, Adv. Mater., Chem. Mater.<\/i><\/em>\u00a0\u7b49\u671f\u520a\u4e0a\u53d1\u8868\u6587\u7ae0\u3002<\/p>\n

\"\"<\/a><\/p>\n

\u9648\u660a\uff1a\u591a\u4f26\u591a\u5927\u5b66Sargent\u8bfe\u9898\u7ec4\u535a\u58eb\u540e\uff0c2020\u5e74\u4e8e\u4e0a\u6d77\u79d1\u6280\u5927\u5b66&\u4e2d\u56fd\u79d1\u5b66\u9662\u5927\u5b66 (\u8054\u5408\u57f9\u517b) \u83b7\u5f97\u535a\u58eb\u5b66\u4f4d\uff0c2014\u5e74\u4e8e\u6e58\u6f6d\u5927\u5b66\u5316\u5de5\u5b66\u9662\u53d6\u5f97\u5b66\u58eb\u5b66\u4f4d\uff0c\u4e3b\u8981\u7814\u7a76\u65b9\u5411\u4e3a\u5355\u7ed3\/\u591a\u7ed3\u9499\u949b\u77ff\u57fa\u5149\u4f0f\u5668\u4ef6\uff0c\u5148\u540e\u4ee5\u7b2c\u4e00\u4f5c\u8005\uff08\u542b\u5171\u540c\uff09\u8eab\u4efd\u5728Nature (2 \u7bc7), Nat. Photonics, Advanced Materials (3 \u7bc7), Journal of Materials Chemistry A, Science China Materials\u7b49\u671f\u520a\u4e0a\u53d1\u8868\u591a\u7bc7\u6587\u7ae0\u3002<\/i><\/em><\/p>\n

\"\"<\/a><\/p>\n

Edward Sargent: \u897f\u5317\u5927\u5b66\u5316\u5b66\u7cfb\u6559\u6388\uff0c\u66fe\u4e3a\u591a\u4f26\u591a\u5927\u5b66\u526f\u6821\u957f\uff0c\u6750\u6599\u5b66\u548c\u5149\u5b50\u5b66\u9886\u57df\u4e16\u754c\u8457\u540d\u79d1\u5b66\u5bb6\uff0cInVisage Technologies\u521b\u59cb\u4eba\uff0cXagenic\u5171\u540c\u521b\u59cb\u4eba\uff0cAAAS\u4f1a\u58eb\uff0cIEEE\u4f1a\u58eb\u3002\u4ed6\u7684\u8457\u4f5c\u300aThe Dance of Molecules: How Nanotechnology is Changing Our Lives\u300b\u4e8e2005\u5e74\u51fa\u7248\uff0c\u76ee\u524d\u5df2\u88ab\u7ffb\u8bd1\u6210\u6cd5\u6587\u3001\u897f\u73ed\u7259\u6587\u3001\u610f\u5927\u5229\u6587\u3001\u97e9\u6587\u548c\u963f\u62c9\u4f2f\u6587\u3002\u4ed6\u5728Nature\u3001Science\u7b49\u671f\u520a\u53d1\u8868\u8bba\u6587700\u591a\u7bc7\uff0c\u76ee\u524d\u5df2\u83b7\u5f15\u7528\u8d85\u8fc780000\u6b21\uff0c\u5176\u4e2d\u6709\u8d85\u8fc7150\u7bc7\u8bba\u6587\u7684\u5f15\u7528\u6b21\u6570\u8d85\u8fc7150\u3002<\/p>\n

\u539f\u6587\u8be6\u60c5\uff1aWang\u00a0Z., Zeng L., Zhu T., Chen H. et al. Suppressed phase segregation for triple-junction perovskite solar cells. Nature (2023) https:\/\/doi.org\/10.1038\/s41586-023-06006-7<\/p>\n","protected":false},"excerpt":{"rendered":"

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