{"id":157064,"date":"2018-10-24T06:30:43","date_gmt":"2018-10-23T22:30:43","guid":{"rendered":"\/\/m.iemloyee.com\/?p=157064"},"modified":"2018-10-23T11:23:58","modified_gmt":"2018-10-23T03:23:58","slug":"%e5%8d%97%e4%ba%ac%e7%90%86%e5%b7%a5%e6%9b%be%e6%b5%b7%e6%b3%a2%e3%80%81%e5%be%90%e6%99%93%e5%ae%9d%e3%80%81%e5%ae%8b%e7%bb%a7%e4%b8%adafm%ce%b1-%ce%b4%e6%99%b6%e7%9b%b8%e5%b7%a5%e7%a8%8b%e5%a4%a7","status":"publish","type":"post","link":"\/\/m.iemloyee.com\/?p=157064","title":{"rendered":"\u5357\u4eac\u7406\u5de5\u66fe\u6d77\u6ce2\u3001\u5f90\u6653\u5b9d\u3001\u5b8b\u7ee7\u4e2dAFM:\u03b1-\u03b4\u6676\u76f8\u5de5\u7a0b\u5927\u5e45\u63d0\u5347\u9499\u949b\u77ff\u5149\u7535\u5668\u4ef6\u7a33\u5b9a\u6027"},"content":{"rendered":"

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

\n \u6700\u8fd1\uff0c\u7814\u7a76\u4eba\u5458\u8bc1\u5b9e\u4ee5\u94ef(Cs)\u4e3aA\u4f4d\u5f62\u6210\u7684\u65e0\u673a\u94ef-\u5364\u5316\u94c5\u9499\u949b\u77ff(CsPbX3<\/sub>)\u53ef\u4ee5\u6709\u6548\u5730\u89c4\u907f\u7532\u57fa\u80fa\u9499\u949b\u77ff\u4e2d\u6c22\u952e\u9020\u6210\u7684\u70ed\u7a33\u5b9a\u6027\u5dee\u3001A\u4f4d\u79bb\u5b50\u8fc1\u79fb\u7b49\u95ee\u9898\u3002\u6b64\u5916\uff0c\u4e0a\u8ff0\u65e0\u673a\u9499\u949b\u77ff\u7eb3\u7c73\u6676(NC)\u5728\u6574\u4e2a\u53ef\u89c1\u5149\u533a\u57df\u5177\u6709\u7a84\u7684\u53d1\u5c04\uff0c\u4ee5\u53ca\u63a5\u8fd1100%\u7684\u9ad8\u5149\u81f4\u53d1\u5149\u91cf\u5b50\u4ea7\u7387(PLQY)\u3002\u56e0\u6b64\uff0cCsPbX3<\/sub>\u4f5c\u4e3a\u53d1\u5149\u6750\u6599\u7684\u7ea2\u3001\u7eff\u3001\u84dd\u7eaf\u4e09\u57fa\u8272\u53d1\u5149\u4e8c\u6781\u7ba1(LED)\u5728\u5bbd\u8272\u57df\u5168\u5f69\u663e\u793a\u5668\u9886\u57df\u4e2d\u663e\u793a\u51fa\u5de8\u5927\u7684\u6f5c\u529b\u3002\u81ea\u9996\u6b21\u5e94\u7528\u4e8eLED\u4ee5\u6765\uff0c\u65e0\u673a\u9499\u949b\u77ff\u57fa\u53d1\u5149\u4e8c\u6781\u7ba1(PeLED)\u7684\u4eae\u5ea6\u548c\u5916\u91cf\u5b50\u6548\u7387(EQE)\u5747\u6709\u663e\u8457\u6539\u5584\u3002\u7136\u800c\uff0c\u76f8\u6bd4\u7eff\u5149\u6ce2\u8c31\u6bb5\u53d1\u5149\u7684CsPbBr3<\/sub> LED\u7684\u8fdb\u6b65\uff0c CsPbI3<\/sub>\u7684\u7ea2\u5149LED\u53d1\u5c55\u7f13\u6162\u3002\u8ba1\u7b97\u548c\u5b9e\u9a8c\u7ed3\u679c\u5747\u8868\u660e\uff0cCsPbI3<\/sub>\u6709\u4e24\u79cd\u76f8\uff1a\u7ea2\u5149\u8f90\u5c04\u7684\u03b1-CsPbI3<\/sub>\u548c\u975e\u8f90\u5c04\u3001\u975e\u9499\u949b\u77ff\u7684\u03b4-CsPbI3<\/sub>\u3002\u03b1\u76f8\u53ea\u80fd\u5728\u6e29\u5ea6\u9ad8\u4e8e300\u00b0C\u65f6\u5b58\u5728\uff0c\u5ba4\u6e29\u4e0b\uff0c\u03b1-CsPbI3<\/sub>\u4f1a\u53d1\u751f\u81ea\u53d1\u76f8\u8f6c\u53d8\u4e3a\u03b4\u76f8\uff0c\u5bfc\u81f4\u7ea2\u5149\u8f90\u5c04\u590d\u5408\u51cf\u5c11\u3001\u975e\u8f90\u5c04\u590d\u5408\u635f\u5931\u63d0\u5347\uff0c\u9020\u6210\u5668\u4ef6\u6027\u80fd\u4e0d\u4f73\u3002\u56e0\u6b64\uff0c\u5728\u5ba4\u6e29\u4e0b\u5b9e\u73b0\u76f8\u7a33\u5b9a\u03b1-CsPbI3<\/sub>\u662f\u5f00\u53d1\u9ad8\u6027\u80fd\u7a33\u5b9a\u7ea2\u8272LED\u7684\u7d27\u8feb\u6311\u6218\u3002<\/p>\n

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

\n \u8fd1\u65e5\uff0c\u5357\u4eac\u7406\u5de5\u5927\u5b66\u66fe\u6d77\u6ce2\u6559\u6388\u3001\u5f90\u6653\u5b9d\u6559\u6388\u3001\u5b8b\u7ee7\u4e2d\u6559\u6388(\u5171\u540c\u901a\u8baf\u4f5c\u8005)\u7b49<\/strong>\u62a5\u9053\u4e86\u4e00\u79cd\u53ef\u884c\u7684\u76f8\u8c03\u63a7\u65b9\u6cd5\uff0c\u5373\u5728CsPbI3<\/sub>\u4e2d\u52a0\u5165\u957f\u94fe\u9633\u79bb\u5b50(\u4f8b\u59822-(1-\u8418\u57fa)\u4e59\u80fa(NEA))\uff0c\u5ba4\u6e29\u4e0b\u83b7\u5f97\u7a33\u5b9a\u548c\u9ad8\u6027\u80fd\u7684CsPbI3<\/sub>\u57fa\u7ea2\u8272\u53d1\u5149\u4e8c\u6781\u7ba1(LEDs)\uff0c\u6210\u679c\u4ee5\u9898\u4e3a\u201cStable, Efficient Red Perovskite Light-Emitting Diodes by (\u03b1, \u03b4)-CsPbI3<\/sub> Phase Engineering<\/strong>\u201d\u7684\u7814\u7a76\u8bba\u6587\u53d1\u8868\u4e8eAdv. Funct. Mater.<\/strong>\u3002\u4e0a\u8ff0CsPbI3<\/sub>\u57fa\u7ea2\u8272\u53d1\u5149\u4e8c\u6781\u7ba1\u5728\u2248682 nm\u5904\u7684\u7279\u5f81\u7ea2\u8272\u6ce2\u8c31\u6bb5\u53d1\u5149(CIE, 0.71,0.27)\uff0c\u5b9e\u73b0\u4e868.65 % \u7684\u9ad8EQE\uff0c\u662f\u8fc4\u4eca\u4e3a\u6b62\u94ef\u57fa\u7ea2\u8272PeLED\u4e2d\u7684\u6700\u9ad8\u503c\u3002 \u66f4\u91cd\u8981\u7684\u662f\uff0c\u76f8\u5e94\u7684PeLED\u5177\u6709\u51fa\u8272\u7684\u7a33\u5b9a\u6027\uff0c\u5176EQE\u5728\u50a8\u5b583\u4e2a\u6708\u540e\u4ecd\u53ef\u4fdd\u630190%\u3002\u4e0a\u8ff0\u7ed3\u679c\u9a8c\u8bc1\u4e86\u4ee5\u94ef\u57fa\u65e0\u673a\u9499\u949b\u77ff\u4f5c\u4e3a\u7532\u57fa\u80fa(MA)\u6216\u7532\u8112(FA)\u57fa\u9499\u949b\u77ff\u7684\u66ff\u4ee3\u7269\u7684\u6f5c\u529b\uff0c\u6709\u671b\u5728\u7a33\u5b9a\u3001\u9ad8\u6027\u80fd\u592a\u9633\u80fd\u7535\u6c60\u3001\u63a2\u6d4b\u5668\u4ee5\u53ca\u53d1\u5149\u4e8c\u6781\u7ba1\u7b49\u5149\u7535\u5668\u4ef6\u4e2d\u83b7\u5f97\u6210\u529f\uff0c\u4ece\u800c\u63a8\u52a8\u9499\u949b\u77ff\u5149\u7535\u5668\u4ef6\u7684\u5b9e\u9645\u5e94\u7528\u3002<\/p>\n

\u3010\u56fe\u6587\u7b80\u4ecb\u3011<\/strong>
\n \u56fe1 CsPbI3<\/sub>\u57fa\u9499\u949b\u77ffLEDs\u7684\u7ed3\u6784\u548c\u5149\u7535\u6027\u8d28<\/strong><\/p>\n

\"\"<\/p>\n

a) ITO\/PEDOT:PSS\/PVK\/\u9499\u949b\u77ff\/TPBi\/LiF\/Al\u5668\u4ef6\u7ed3\u6784\u793a\u610f\u56fe\uff1b
\n b) 70% NEA\u5668\u4ef6\u7684EL\u5149\u8c31\uff0c\u5185\u63d2\u4e3a\u7ea2\u8272LED\u7684\u7167\u7247\u548c\u76f8\u5e94\u7684CIE\u5750\u6807\uff1b
\n c) EQE\u968f\u7535\u6d41\u5bc6\u5ea6\u7684\u53d8\u5316\uff1b
\n d) 70% NEA PeLED\u7684\u957f\u671f\u7a33\u5b9a\u6027\u6d4b\u8bd5\u3002<\/p>\n

\u56fe1(a)\u662fCsPbI3<\/sub>\u7ea2\u5149LED\u5668\u4ef6\u7ed3\u6784\u793a\u610f\u56fe\u3002\u56fe1b\u663e\u793a\u4e86PeLEDs\u7684\u7535\u81f4\u53d1\u5149(EL) \u4e2d\u5fc3\u5728682 nm \u5c5e\u4e8e\u7ea2\u5149\u7279\u5f81\u8c31\u6bb5\u3002CIE\u8272\u5750\u6807(0.71,0.27)\u63d2\u56fe\u8fdb\u4e00\u6b65\u663e\u793a\u4e86CsPbI3<\/sub> LEDs\u53d1\u5c04\u7684\u7ea2\u5149\u8272\u57df\u66f4\u5bbd\u3002\u5982\u56fe1c\u6240\u793a\uff0c\u5b9e\u73b0\u7ea2\u5149\u53d1\u5149\u91cf\u5b50\u6548\u7387(EQE)\u6700\u4f73\u5cf0\u503c\u9ad8\u8fbe8.65%\u3002\u636e\u6211\u4eec\u6240\u77e5\uff0c\u76ee\u524d\u8fd9\u662f\u57fa\u4e8eCs\u57fa\u7ea2\u8272PeLEDs\u7684\u6700\u9ad8\u503c\u3002\u6b64\u5916\uff0cCsPbI3<\/sub> LEDs\u5668\u4ef6\u7684\u7a33\u5b9a\u6027\u6d4b\u8bd5\uff0c\u5982\u56fe1 d\u6240\u793a\uff0c\u5668\u4ef6\u5728\u6ca1\u6709\u5c01\u88c5\u7684N2<\/sub>\u6c14\u6c1b\u4e0b\uff0c\u5386\u65f6\u4e09\u4e2a\u6708\uff0cEQE\u4fdd\u6301\u4e86\u6700\u521d\u768490%\uff0c\u4eae\u5ea6\u7684\u534a\u8870\u671fT50\u4e5f\u53ef\u4ee5\u8fbe\u5230\u5927\u7ea6\u4e3a6 h\uff0c\u8868\u73b0\u4e86\u4f18\u5f02\u7684\u5de5\u4f5c\u7a33\u5b9a\u6027\u3002\u8fd9\u4e00\u7ed3\u679c\u8fdb\u4e00\u6b65\u9a8c\u8bc1NEA\u7684\u6dfb\u52a0\u53ef\u4ee5\u589e\u5f3a\u03b1-CsPbI3<\/sub>\u5728\u7535\u573a\u4e2d\u7684\u7a33\u5b9a\u6027\u3002<\/p>\n

\u56fe2 NEA\u5bf9CsPbI3<\/sub>\u57fa\u9499\u949b\u77ff\u8584\u819c\u76f8\u7ed3\u6784\u548c\u53d1\u5149\u6027\u80fd\u7684\u5f71\u54cd<\/strong><\/p>\n

\"\"<\/p>\n

a) \u4e0d\u540cNEA\u6bd4\u4f8b\u7684\u9499\u949b\u77ff\u8584\u819c\u7684XRD\u56fe\u8c31\uff1b
\n b) \u4e0d\u540cNEA\u6bd4\u4f8b\u7684CsPbI3<\/sub>\u6837\u54c1\u7684FTIR\u5149\u8c31\uff1b
\n c) \u4e0d\u540cNEA\u6bd4\u4f8b\u7684\u9499\u949b\u77ff\u7684\u5f62\u6210\u80fd\uff1b
\n d) 400 nm\u6fc0\u53d1\u4e0b\u5177\u6709\u4e0d\u540cNEA\u6bd4\u4f8bCsPbI3<\/sub>\u819c\u7684PL\u5149\u8c31\u3002<\/p>\n

\u4e3a\u4e86\u8fdb\u4e00\u6b65\u5206\u6790CsPbI3<\/sub> LEDs\u4f18\u5f02\u7684\u5668\u4ef6\u6027\u80fd\u548c\u76f8\u7ed3\u6784\u4e4b\u95f4\u7684\u5173\u7cfb\uff0c\u5bf9\u9499\u949b\u77ff\u8584\u819c\u8fdb\u884c\u4e86\u8be6\u7ec6\u7684\u76f8\u7ed3\u6784\u5206\u6790\u3002\u56fe2a\u663e\u793a\u4e86\u4e0d\u540c\u7684NEA\u6bd4\u7387\u4e0bCsPbI3<\/sub>\u76f8\u7ed3\u6784\u7684\u6f14\u53d8\u8fc7\u7a0b\uff0c\u968f\u7740NEA\u7684\u589e\u52a0\uff0cCsPbI3<\/sub>\u7684\u6676\u76f8\u9010\u6e10\u7531\u975e\u53d1\u5149\u7684 \u03b4\u76f8(\u03b4-CsPbI3<\/sub>)\u8f6c\u5316\u4e3a\u7ea2\u5149\u53d1\u5149\u76f8\u03b1\u76f8(\u03b1-CsPbI3<\/sub>)\u3002\u503c\u5f97\u6ce8\u610f\uff0c\u5373\u4f7fNEA\u7684\u542b\u91cf\u9ad8\u8fbe70%\uff0cCsPbI3<\/sub>\u7684\u03b1\u76f8\u884d\u5c04\u5cf0\u7684\u4f4d\u7f6e\u6ca1\u6709\u4e1d\u6beb\u79fb\u52a8\uff0c\u8fd9\u8bf4\u660eNEA\u6ca1\u6709\u6539\u53d8\u03b1-CsPbI3<\/sub>\u7684\u6676\u683c\u7ed3\u6784\uff0c\u800c\u662f\u9644\u7740\u4e8e\u5176\u8868\u9762\u3002\u56fe2b\u662f\u4e0d\u540cNEA\u542b\u91cf\u65f6\u76f8\u5e94\u7684FTIR\uff0c 1630 cm\u22121<\/sup>\u548c 660 cm\u22121<\/sup>\u8868\u660e\u4e86NEA\u5728\u03b1- CsPbI3<\/sub>\u8584\u819c\u4e2d\uff0c\u5e76\u4e14\u968f\u7740NEA\u542b\u91cf\u7684\u589e\u52a0\uff0c\u9499\u949b\u77ff\u8584\u819c\u5177\u6709\u66f4\u597d\u7684\u8010\u6c34\u5206\u6027\u80fd\u3002\u540c\u65f6\uff0cDFT\u7ed3\u679c\u663e\u793a(\u56fe2c)\uff0cNEA\u7684\u52a0\u5165\u53ef\u4ee5\u6709\u6548\u964d\u4f4e\u03b1- CsPbI3<\/sub>\u7684\u5f62\u6210\u80fd\uff0c\u66f4\u6709\u5229\u4e8e\u4f4e\u6e29\u4e0b\u03b1-CsPbI3<\/sub>\u7684\u5f62\u6210\u3001\u7a33\u5b9a\u3002\u7a33\u5b9a\u7684\u03b1-CsPbI3<\/sub>\u6709\u6548\u5730\u589e\u5f3a\u8f90\u5c04\u590d\u5408\uff0c\u4f7fCsPbI3<\/sub>\u7684\u7ea2\u5149\u53d1\u5c04\u5f97\u5230\u5927\u5e45\u5ea6\u63d0\u5347\uff0c\u5982\u56fe2d\u6240\u793a\u3002<\/p>\n

\u56fe3 CsPbI3<\/sub>\u57fa\u9499\u949b\u77ff\u8584\u819c\u7684\u7a33\u5b9a\u6027\u5206\u6790<\/strong><\/p>\n

\"\"<\/p>\n

a) \u5728\u542b\u6709\u56db\u79cd\u6a21\u5f0f\u7684H2<\/sub>O\u5206\u5b50(\u6807\u8bb0\u4e3aA\u3001B\u3001C\u548cD)\u548c\u4e24\u79cd\u6a21\u5f0f\u7684O2<\/sub>\u5206\u5b50(\u6807\u8bb0\u4e3aE\u548cF)\u7684\u4e0d\u540c\u5438\u9644\u6a21\u578b\u4e0b\u9499\u949b\u77ff\u4e0a\u6c34\u5206\u548c\u6c27\u6c14\u5438\u9644\u7684\u793a\u610f\u56fe\uff1b
\n b) \u5728D\u548cF\u5438\u9644\u6a21\u578b\u4e0b\u5177\u6709\u4e0d\u540cNEA\u6bd4\u7684\u9499\u949b\u77ff\u7684\u5438\u9644\u80fd\uff1b
\n c) \u5177\u6709\u4e0d\u540cNEA\u6bd4\u4f8bCsPbI3<\/sub>\u8584\u819c\u7684PLQY\u968f\u50a8\u5b58\u65f6\u95f4\u7684\u53d8\u5316\uff0c\u5185\u63d2\u4e3a\u65b0\u9c9c\u548c\u8001\u5316\u7684CsPbI3<\/sub>\u8584\u819c\u5728\u4e0d\u540c\u65f6\u95f4\u5185\u7684\u7167\u7247\u3002<\/p>\n

\u4e3a\u6df1\u5165\u7814\u7a76NEA\u5bf9\u63d0\u9ad8\u03b1-CsPbI3<\/sub>\u7a33\u5b9a\u6027\u7684\u4f5c\u7528\u673a\u5236\uff0c\u6211\u4eec\u9009\u62e9\u7a7a\u6c14\u73af\u5883\u6761\u4ef6\u4e2d\u53ef\u4ee5\u52a0\u901f\u4e86CsPbI3<\/sub>\u8f6c\u76f8\u53d8\u7684H2<\/sub>O\u548cO2<\/sub>\u4f5c\u4e3a\u7814\u7a76\u5bf9\u8c61\uff0c\u5e76\u6784\u5efa\u4e0d\u540c\u7684\u5438\u9644\u6a21\u578b(\u56fe3a)\u3002\u901a\u8fc7DFT\u5bf9\u4e0d\u540c\u7684\u5438\u9644\u6a21\u578b\u4e0b\u7684\u5438\u9644\u80fd\u8fdb\u884c\u4e86\u6a21\u62df\u8ba1\u7b97\uff0c\u7ed3\u679c\u663e\u793a\u968f\u7740NEA\u6d53\u5ea6\u7684\u589e\u52a0\uff0c H2<\/sub>O\u548cO2<\/sub>\u5728CsPbI3<\/sub>\u4e0a\u7684\u5438\u9644\u9010\u6e10\u53d8\u5f97\u66f4\u52a0\u56f0\u96be(\u56fe3b)\u3002\u56e0\u6b64\uff0c\u52a0\u5165NEA\u6709\u5229\u4e8e\u4fdd\u62a4\u03b1-CsPbI3<\/sub>\u907f\u514d\u6c34\u5206\u50ac\u5316\u76f8\u8f6c\u53d8\u548c\u6c27\u6c14\u7684\u4fb5\u8680\u3002\u56fe3c\u663e\u793a\u4e86\u4e0d\u540cNEA\u542b\u91cf\u7684\u9499\u949b\u77ff\u8584\u819c\u7684PLQY\u968f\u65f6\u95f4\u7684\u6f14\u53d8\u3002\u8fd9\u4e2a\u7ed3\u679c\u8fdb\u4e00\u6b65\u8bc1\u660e\u4e86\u5177\u6709\u8868\u9762\u758f\u6c34\u70f7\u57fa\u94fe\u7684NEA\u53ef\u4ee5\u6709\u6548\u6291\u5236\u03b1-CsPbI3<\/sub>\u5411\u03b4-CsPbI3<\/sub>\u8f6c\u53d8\u3002<\/p>\n

\u56fe4 CsPbI3<\/sub>\u57fa\u9499\u949b\u77ff\u8584\u819c\u7684\u52a8\u529b\u5b66\u5206\u6790<\/strong><\/p>\n

\"\"<\/p>\n

a) \u7279\u5b9a\u63a2\u9488\u5ef6\u8fdf\u65f6\u95f4\u7684\u77ac\u6001\u5438\u6536(TA)\u5149\u8c31\uff0c\u663e\u793a\u5728PB1\u3001PB2\u548cPB3\u5904\u7684\u5149\u6f02\u767d\uff1b
\n b) PB3\u7684\u52a8\u529b\u5b66\u66f2\u7ebf\uff1b
\n c) \u4e0d\u540cNEA\u6bd4\u4f8bCsPbI3<\/sub>\u6837\u54c1\u7684\u65f6\u95f4\u5206\u8fa8PL\u8870\u51cf\u66f2\u7ebf\u3002<\/p>\n

\u91c7\u7528TA\u5149\u8c31\u6280\u672f\u6df1\u5165\u5206\u6790NEA\u5bf9\u5149\u5b66\u6027\u80fd\u7684\u5f71\u54cd\u3002\u56fe4a\u4e3a\u5149\u6cf5\u6d66\u77ac\u6001\u5438\u6536\u5149\u8c31\u3002\u7ea2\u5149\u533a\u57df\u5185\u5360\u4e3b\u5bfc\u5730\u4f4d\u7684\u5149\u6f02\u767d\u663e\u793a\u4e86\u03b1-CsPbI3<\/sub>\u4e2d\u7535\u5b50\u4ece\u4ef7\u5e26\u9876\u5230\u5bfc\u5e26\u5e95\u7684\u6ee1\u5e26\u963b\u6b62\u6548\u5e94\u3002\u4e0ePL\u7ed3\u679c\u4e00\u81f4\uff0c\u5c3d\u7ba1\u968f\u7740NEA\u542b\u91cf\u7684\u589e\u52a0\u5149\u6f02\u767d\u5cf0\u7684\u84dd\u79fb\uff0c\u4f46\u662f\u7535\u5b50\u8dc3\u8fc1\u7684\u5927\u90e8\u5206\u4ecd\u53d1\u751f\u5728\u03b1-CsPbI3<\/sub>\u4e2d\u3002\u8584\u819c\u7684\u5149\u6f02\u767d\u5cf0\u7684\u8870\u51cf\u65f6\u95f4\u5f3a\u70c8\u4f9d\u8d56\u4e8e\u6fc0\u53d1\u80fd\u7ea7\u4e2d\u7684\u7f3a\u9677\u6001\u5bc6\u5ea6\u3002\u5982\u56fe4b\u6240\u793a, 70% NEA\u7684\u9499\u949b\u77ff\u8584\u819c\u5177\u6709\u66f4\u957f\u7684\u8870\u51cf\u65f6\u95f4\uff0c\u8868\u660e\u7f3a\u9677\u6001\u5bc6\u5ea6\u7684\u51cf\u5c0f\uff0c\u8fd9\u4e0ePLQY\u7684\u7ed3\u679c\u4e5f\u662f\u4e00\u81f4\u7684\u3002\u5982\u56fe4c\u6240\u793a\uff0c\u662fCsPbI3<\/sub>\u8584\u819c\u7684\u65f6\u95f4\u5206\u8fa8\u8367\u5149\u5bff\u547d\u3002\u7531\u4e8e\u9499\u949b\u77ff\u70ed\u6fc0\u5b50\u7684\u5f1b\u8c6b\u8fc7\u7a0b\u5728ps\u6216\u8005\u66f4\u4f4e\u6570\u91cf\u7ea7\uff0c\u56e0\u6b64\u53cc\u6307\u6570\u8870\u51cf\u8fc7\u7a0b\u53ef\u4ee5\u5f52\u56e0\u4e8e\u7f3a\u9677\u8bf1\u5bfc\u7684\u975e\u8f90\u5c04\u590d\u5408\u548c\u672c\u5f81\u8f90\u5c04\u590d\u5408\u300270% NEA\u7684\u9499\u949b\u77ff\u8584\u819c\u7684\u8367\u5149\u8870\u51cf\u5bff\u547d\u662f9.63 ns\uff0c\u662f40% NEA\u9499\u949b\u77ff\u8584\u819c(\u22482.3 ns)\u7684\u56db\u500d\u3002\u8fd9\u8868\u660eNEA\u7684\u52a0\u5165\u6709\u6548\u6291\u5236\u4e86\u975e\u8f90\u5c04\u590d\u5408\uff0c\u6709\u5229\u4e8e\u83b7\u5f97\u9ad8\u6027\u80fd\u7684\u53d1\u5149\u5668\u4ef6\u3002<\/p>\n

\u56fe5 CsPbI3<\/sub>\u57fa\u9499\u949b\u77ffLEDs\u7684\u5149\u7535\u6027\u80fd\u5206\u6790<\/strong><\/p>\n

\"\"<\/p>\n

a) \u7535\u6d41\u5bc6\u5ea6\u4e0e\u9a71\u52a8\u7535\u538b\u7684\u5173\u7cfb\uff1b
\n b) \u4e0d\u540cNEA\u6bd4\u4f8bCsPbI3<\/sub>\u57faLEDs\u7684\u4eae\u5ea6\u968f\u9a71\u52a8\u7535\u538b\u7684\u53d8\u5316\uff1b
\n c) \u4e0d\u540cNEA\u6bd4\u4f8bCsPbI3<\/sub>\u57faLEDs\u7684EQE\u968f\u7535\u6d41\u5bc6\u5ea6\u7684\u53d8\u5316\u3002<\/p>\n

\u7ed3\u5408\u4ee5\u4e0a\u5206\u6790\uff0c NEA\u7684\u52a0\u5165\u4e0d\u4ec5\u53ef\u4ee5\u4f4e\u6e29\u5f62\u6210\u548c\u7a33\u5b9a\u03b1-CsPbI3<\/sub>\uff0c\u540c\u65f6\u53ef\u4ee5\u949d\u5316\u03b1-CsPbI3<\/sub>\u8584\u819c\u4e2d\u7f3a\u9677\uff0c\u63d0\u9ad8\u4e86\u5149\u7535\u6027\u80fd\u3002\u56e0\u6b64\uff0c\u5728\u5236\u5907\u7684CsPbI3<\/sub> LEDs\u4e2d\u53ef\u4ee5\u5f97\u5230\u6709\u6548\u7ea2\u5149\u7684\u7279\u5f81\u53d1\u5c04\uff0c\u8bc1\u660e\u03b1-CsPbI3<\/sub>\u7684\u7ea2\u5149\u8f90\u5c04\u590d\u5408\u5360\u636e\u4e86\u8f7d\u6d41\u5b50\u6ce8\u5165\u7684\u4e3b\u5bfc\u5730\u4f4d\u3002\u5bf9\u5e94\u7684I-V\u548cL-V\u7279\u6027\u5982\u56fe5a-b\u6240\u793a\u3002\u968f\u7740NEA\u6bd4\u4f8b\u589e\u52a0,\u542f\u4eae\u7535\u538b\u4ece2.6 V\u589e\u52a0\u52302.8 V,\u6781\u5c0f\u7684\u5dee\u5f02\u8868\u660eNEA\u7684\u52a0\u5165\u5bf9\u7535\u5b50\u3001\u7a7a\u7a74\u6ce8\u5165\u7684\u5f71\u54cd\u662f\u53ef\u4ee5\u5ffd\u7565\u7684\u3002\u4e3a\u4e86\u8fdb\u4e00\u6b65\u63ed\u793a\u8f7d\u6d41\u5b50\u6ce8\u5165\u8fc7\u7a0b\u7684\u52a8\u529b\u5b66\uff0c I-V\u56fe\u88ab\u8fdb\u4e00\u6b65\u5212\u5206\u5206\u4e3a:\u6f0f\u7535\u6d41\u533a\u3001\u6269\u6563\u7535\u6d41\u533a\u548c\u6f02\u79fb\u7535\u6d41\u533a\u3002\u6269\u6563\u7535\u6d41\u590d\u5408\u8096\u7279\u57fa\u516c\u5f0f\uff1a<\/p>\n

\"\"\u00a0\u901a\u8fc7\u5bf9\u6269\u6563\u7535\u6d41\u7684\u6307\u6570\u5904\u7406\uff0c\u5f97\u5230\u4e0d\u540c\u7535\u538b\u4e0b\u6ce8\u5165\u7535\u8377\u7684\u590d\u5408\u6a21\u5f0f\u3002\u4ece\u56fe5a\u53ef\u4ee5\u770b\u51fa\uff0c\u5f53\u65bd\u52a0\u7535\u538b\u8d85\u8fc7\u4e86\u542f\u4eae\u7535\u538b, n\u9010\u6e10\u4ece1(\u22483.0 V)\u589e\u52a0\u52302(\u22484.2 V),\u8fd9\u8868\u660e\u6ce8\u5165\u7535\u8377\u9010\u6e10\u4ece\u8f90\u5c04\u590d\u5408\u53d8\u6210Shockley-Read-Hall\u590d\u5408\u5360\u4e3b\u5bfc\u7684\u975e\u8f90\u5c04\u590d\u5408\u3002\u968f\u7740\u7535\u538b\u7684\u8fdb\u4e00\u6b65\u589e\u5927\uff0c\u51fa\u73b0\u4e86\u7f3a\u9677\u53e0\u52a0\u590d\u5408\u901a\u9053 (n\uff1e2)\u3002\u56fe5c\u7ed9\u51fa\u4e86\u7535\u6d41\u5bc6\u5ea6\u4e0b\u7684EQE\uff0c\u968f\u7740NEA\u7684\u589e\u52a0\uff0cEQE \u589e\u5927\uff0c\u8868\u660eNEA\u901a\u8fc7\u7f3a\u9677\u949d\u5316\u4f7f\u6f0f\u7535\u6d41\u5f97\u5230\u4e86\u6709\u6548\u6291\u5236\u3002<\/p>\n

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

\n \u7efc\u4e0a\u6240\u8ff0\uff0c\u4f5c\u8005\u5df2\u6210\u529f\u5408\u6210\u5177\u6709NEA\u63ba\u5165\u8c03\u63a7\u6676\u76f8\u7684\u03b1-CsPbI3<\/sub>\uff0c\u540c\u65f6\u8fdb\u884c\u4e86\u7cfb\u7edf\u5b9e\u9a8c\u548cDFT\u8ba1\u7b97\uff0c\u4ee5\u7814\u7a76\u6dfb\u52a0\u5242\u5bf9\u76f8\u8c03\u63a7\u53ca\u5176\u76f8\u5173\u5149\u7535\u6027\u80fd\u7684\u5f71\u54cd\u3002\u7ed3\u679c\u8868\u660e\uff0c\u901a\u8fc7\u5728CsPbI3<\/sub>\u9499\u949b\u77ff\u7cfb\u7edf\u4e2d\u63ba\u5165NEA\uff0c\u53ef\u89c2\u5bdf\u5230\u8f83\u4f4e\u7684\u03b1-CsPbI3<\/sub>\u5f62\u6210\u80fd\u3002\u540c\u65f6\uff0c\u03b1-CsPbI3<\/sub>\u8868\u9762\u4e0a\u758f\u6c34\u6027NEA\u7684\u7d27\u5bc6\u8986\u76d6\u4e5f\u53ef\u4ee5\u663e\u8457\u63d0\u9ad8\u03b1-CsPbI3<\/sub>\u7684\u7a33\u5b9a\u6027\u548c\u5149\u7535\u6027\u8d28\u3002\u7a33\u5b9a\u03b1-CsPbI3<\/sub>\u7684\u6210\u529f\u83b7\u5f97\u6709\u671b\u4e3a\u7ea2\u5e26\u53d1\u5c04\u63d0\u4f9b\u6709\u6548\u7684\u8f90\u5c04\u590d\u5408\u4e2d\u5fc3\u3002\u4e0a\u8ff0\u7ed3\u679c\u52a0\u6df1\u4e86\u6dfb\u52a0\u5242\u5bf9\u76f8\u7a33\u5b9a\u6027\u5f71\u54cd\u7684\u6df1\u523b\u7406\u89e3\uff0c\u5e76\u5411\u9ad8\u6548\u3001\u7a33\u5b9a\u7684PeLED\u8fc8\u51fa\u4e86\u91cd\u8981\u7684\u4e00\u6b65\u3002<\/p>\n

\u6587\u732e\u94fe\u63a5\uff1aStable, Efficient Red Perovskite Light-Emitting Diodes by (\u03b1, \u03b4)-CsPbI3<\/sub> Phase Engineering <\/a><\/strong>(Adv. Funct. Mater.<\/strong>, 2018, DOI: 10.1002\/adfm.201804285)<\/p>\n

\u3010\u901a\u8baf\u4f5c\u8005\u7b80\u4ecb\u3011<\/strong><\/p>\n

\n \u66fe\u6d77\u6ce2\u6559\u6388<\/strong>\uff0c\u56fd\u5bb6\u6770\u51fa\u9752\u5e74\u57fa\u91d1\u83b7\u5f97\u8005\uff0c\u56fd\u5bb6\u201c\u4e07\u4eba\u8ba1\u5212\u201d\u9886\u519b\u4eba\u624d\uff0c\u79d1\u777f\u552f\u5b89(ClarivateAnalytics)\u5168\u7403\u9ad8\u88ab\u5f15\u79d1\u5b66\u5bb6\uff0c\u65b0\u578b\u663e\u793a\u6750\u6599\u4e0e\u5668\u4ef6\u5de5\u4fe1\u90e8\u91cd\u70b9\u5b9e\u9a8c\u5ba4\u3001\u5357\u4eac\u7406\u5de5\u5927\u5b66\u5149\u7535\u6750\u6599\u4e0e\u5668\u4ef6\u7814\u7a76\u6240\u521b\u59cb\u4eba\u3002\u73b0\u4efbMaterials Research Letters\u3001Science Bulletin\u3001Nano Future\u3001Nanotechnology\u3001Current Applied Physics\u7b49\u671f\u520a\u7f16\u59d4\u3002\u957f\u671f\u4ece\u4e8b\u4f4e\u7ef4\u53d1\u5149\u6750\u6599\u4e0e\u5149\u7535\u663e\u793a\u6280\u672f\u7814\u7a76\uff0c\u5305\u62ec\u65b0\u578b\u534a\u5bfc\u4f53\u7406\u8bba\u8bbe\u8ba1\uff0c\u4ee5\u53ca\u91cf\u5b50\u70b9\u65b0\u4f53\u7cfb\u5408\u6210\u3001\u53d1\u5149\u673a\u7406\u3001\u53d1\u5149\u5668\u4ef6\u3001\u663e\u793a\u5e94\u7528\u7b49\uff0c\u83b7\u5f97\u4e86\u4e2d\u56fd\u7167\u660e\u5b66\u4f1a\u201c\u4e2d\u56fdLED\u9996\u521b\u5956\u201d\u91d1\u5956\u3001\u4e2d\u56fd\u9897\u7c92\u5b66\u4f1a\u79d1\u6280\u8fdb\u6b65\u5956\u4e8c\u7b49\u5956\u3001\u6c5f\u82cf\u7701\u9897\u7c92\u5b66\u4f1a\u521b\u65b0\u5956\u7279\u7b49\u5956\u3001\u6559\u80b2\u90e8\u970d\u82f1\u4e1c\u9752\u5e74\u6559\u5e08\u5956\u3001\u5b89\u5fbd\u7701\u79d1\u5b66\u6280\u672f\u5956\u4e00\u7b49\u5956\u3002\u53d1\u8868SCI\u8bba\u6587200\u4f59\u7bc7\uff0c\u5305\u62ecNature\u5b50\u520a2\u7bc7\uff0cChem. Soc. Rev. 1\u7bc7\uff0cAdv. Mater. 14\u7bc7\uff0cAdv. Funct. Mater. 14\u7bc7\uff0cJ. Am. Chem. Soc. 3\u7bc7\uff0cAngew. Chem. Int. Ed. 9\u7bc7\uff0cNano Lett. 5\u7bc7\uff0c\u5f71\u54cd\u56e0\u5b5010.0\u4ee5\u4e0a\u671f\u520a\u8bba\u658770\u4f59\u7bc7\uff1b\u83b7SCI\u5f15\u752815000\u4f59\u6b21\uff0c\u6700\u9ad8\u5355\u7bc7\u5f15\u75281200\u6b21\uff0cESI\u9ad8\u88ab\u5f15\u8bba\u658740\u4f59\u7bc7\uff0cH\u56e0\u5b5060\u3002<\/p>\n

\u5f90\u6653\u5b9d\u6559\u6388<\/strong>\uff0c\u5357\u4eac\u7406\u5de5\u5927\u5b66\u65b0\u578b\u663e\u793a\u6750\u6599\u4e0e\u5668\u4ef6\u5de5\u4fe1\u90e8\u91cd\u70b9\u5b9e\u9a8c\u5ba4\u9752\u5e74\u6559\u6388\u30022016\u5e74\u83b7\u5f97\u534e\u4e2d\u79d1\u6280\u5927\u5b66\u5149\u7535\u4fe1\u606f\u5de5\u7a0b\u535a\u58eb\u5b66\u4f4d\uff0c2014-2015\u5e74\u5728\u52a0\u5dde\u5927\u5b66\u6d1b\u6749\u77f6\u5206\u6821Yang Yang\u5b9e\u9a8c\u5ba4\u8054\u5408\u57f9\u517b\uff0c2016-2018\u5728\u534e\u76db\u987f\u5927\u5b66Alex Jen\u5b9e\u9a8c\u5ba4\u4ece\u4e8b\u535a\u58eb\u540e\u7814\u7a76\u3002\u4e3b\u8981\u4ece\u4e8b\u9499\u949b\u77ff\u53ca\u91cf\u5b50\u70b9\u592a\u9633\u80fd\u7535\u6c60\u7814\u7a76\uff0c\u8bbe\u8ba1\u4e86\u6548\u7387\u8fbe\u523015%\u7684\u5168\u65e0\u673a\u4f20\u8f93\u5c42\u78b3\u7535\u6781p-i-n\u7ed3\u6784\u9499\u949b\u77ff\u592a\u9633\u80fd\u7535\u6c60\uff0c\u53d1\u73b0\u4e86\u9499\u949b\u77ff\u592a\u9633\u80fd\u7535\u6c60\u7684\u754c\u9762\u5806\u79ef\u7535\u8377\u68af\u5ea6\u6548\u5e94\uff0c\u5728Nat. Commun., J. Am.Chem. Soc., Nano Lett., ACS Nano, Adv. Funct. Mater.\u7b49\u671f\u520a\u53d1\u8868SCI \u8bba\u658740\u4f59\u7bc7\uff0cSCI\u5f15\u75282000\u4f59\u6b21\uff0c\u5165\u9009ESI\u9ad8\u88ab\u5f15\u8bba\u65873\u7bc7\u3002<\/p>\n

\u5b8b\u7ee7\u4e2d\u6559\u6388<\/strong>\uff0c\u5357\u4eac\u7406\u5de5\u5927\u5b66\u65b0\u578b\u663e\u793a\u6750\u6599\u4e0e\u5668\u4ef6\u5de5\u4fe1\u90e8\u91cd\u70b9\u5b9e\u9a8c\u5ba4\u9752\u5e74\u6559\u6388\uff0c\u526f\u4e3b\u4efb\uff0c\u6c5f\u82cf\u7701\u6770\u51fa\u9752\u5e74\u57fa\u91d1\u83b7\u5f97\u8005\u30022015\u5e74\u83b7\u5f97\u5357\u4eac\u822a\u7a7a\u822a\u5929\u5927\u5b66\u6750\u6599\u5b66\u535a\u58eb\u5b66\u4f4d\uff0c2011-2012\u5e74\u4efb\u53cb\u8fbe\u5149\u7535OLED\u7814\u53d1\u90e8\u9ad8\u7ea7\u5de5\u7a0b\u5e08\uff0c2017-2018\u5728\u5317\u5361\u7f57\u7eb3\u5927\u5b66\u9ec4\u52b2\u677e\u6559\u6388\u5b9e\u9a8c\u5ba4\u62c5\u4efb\u8bbf\u95ee\u5b66\u8005\u3002\u4e3b\u8981\u4ece\u4e8b\u91cf\u5b50\u70b9\u53d1\u5149\u663e\u793a\u6750\u6599\u4e0e\u5668\u4ef6\u7814\u7a76\uff0c\u53d1\u5c55\u4e86\u5168\u65e0\u673a\u9499\u949b\u77ff\u91cf\u5b50\u70b9\u7684\u7ea2\u7eff\u84dd\u4e09\u57fa\u8272\u53d1\u5149\u5668\u4ef6\u4f53\u7cfb\uff0c\u63ed\u793a\u4e86\u5176\u8d85\u7eaf\u8272\u3001\u5e7f\u8272\u57df\u7b49\u7535\u81f4\u53d1\u5149\u7279\u70b9\uff0c\u4ee3\u8868\u6027\u8bba\u6587(Adv. Mater. 2015, 27, 7162)\u5df2\u83b7Science\u3001Nature\u7b49\u5f15\u7528700\u6b21\u3002\u5728Adv. Mater., J. Am.Chem. Soc., Nano Lett., Angew. Chem. Int. Ed.\u7b49\u671f\u520a\u53d1\u8868SCI \u8bba\u658750\u4f59\u7bc7\uff0c\u7b2c\u4e00\u4e0e\u901a\u8baf\u4f5c\u8005\u5f71\u54cd\u56e0\u5b5010.0\u4ee5\u4e0a\u671f\u520a\u8bba\u658715\u7bc7\uff0c\u83b7SCI\u5f15\u75283000\u4f59\u6b21\uff0cESI\u9ad8\u88ab\u5f15\u8bba\u658710\u7bc7\u3002<\/p>\n

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\u3010\u76f8\u5173\u4f18\u8d28\u6587\u732e\u63a8\u8350\u3011<\/strong>
\n \u91cd\u70b9\u5b9e\u9a8c\u5ba4\u91cf\u5b50\u70b9\u53d1\u5149\u4ee3\u8868\u4f5c
\n 1. Blue luminescence of ZnO Nanoparticles Based on Nonequilibrium Process: Defect Origins and Emission Controls<\/strong><\/a>, Adv. Funct. Mater.<\/strong> 2010, 20, 561-572. Citation times = 1200
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