{"id":218584,"date":"2021-03-07T06:30:20","date_gmt":"2021-03-06T22:30:20","guid":{"rendered":"\/\/m.iemloyee.com\/?p=218584"},"modified":"2021-03-07T11:32:42","modified_gmt":"2021-03-07T03:32:42","slug":"%e3%80%90%e5%b7%b2%e6%a0%a1%e7%a8%bf%e3%80%91%e5%8c%97%e4%ba%ac%e7%a7%91%e6%8a%80%e5%a4%a7%e5%ad%a6%e7%94%b0%e5%bb%ba%e5%86%9b%e5%9b%a2%e9%98%9fadv-mater-%ef%bc%9a%e9%ab%98%e4%ba%ae%e5%ba%a6%e5%92%8c","status":"publish","type":"post","link":"\/\/m.iemloyee.com\/?p=218584","title":{"rendered":"\u5317\u4eac\u79d1\u6280\u5927\u5b66\u7530\u5efa\u519b\u56e2\u961fAdv. Mater.\uff1a\u9ad8\u4eae\u5ea6\u548c\u7a33\u5b9a\u7684\u9499\u949b\u77ff\u91cf\u5b50\u70b9\u7eaf\u84dd\u8272\u53d1\u5149\u4e8c\u6781\u7ba1"},"content":{"rendered":"

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

\u91d1\u5c5e\u5364\u5316\u7269\u9499\u949b\u77ff\u53d1\u5149\u4e8c\u6781\u7ba1\uff08PeLEDs\uff09\u56e0\u5176\u8367\u5149\u4ea7\u7387\u9ad8\u3001\u8272\u57df\u5bbd\uff08\u2248140\uff05\uff09\u3001\u53d1\u5c04\u5cf0\u7a84\u7b49\u4f18\u70b9\uff0c\u6210\u4e3a\u8d85\u9ad8\u6e05\u663e\u793a\u7684\u7406\u60f3\u5143\u4ef6\u4e4b\u4e00\u3002\u8fd1\u5e74\uff0c\u6700\u5148\u8fdb\u7684\u7eff\u5149\u548c\u7ea2\u5916\u5149PeLEDs\u7684\u5916\u91cf\u5b50\u6548\u7387\uff08EQE\uff09\u8d85\u8fc720%\uff0c\u4f46\u662f\u7eaf\u7ea2\u5149\u548c\u84dd\u5149PeLEDs\u7684\u4eae\u5ea6\u3001EQE\u4ecd\u7136\u5f88\u4f4e\u3002\u5c3d\u7ba1\u5929\u84dd\u8272PeLEDs\uff08\u6ce2\u957f\u8303\u56f4\uff1a480-490nm\uff09\u7684EQE\u5df2\u7ecf\u63d0\u5347\u523010%\u4ee5\u4e0a\uff0c\u4f46\u8fd9\u4e2a\u6ce2\u957f\u8303\u56f4\u8fd8\u4e0d\u80fd\u6ee1\u8db3\u56fd\u5bb6\u7535\u89c6\u7cfb\u7edf\u59d4\u5458\u4f1a\uff08NTSC\uff09\u6807\u51c6\u7eaf\u84dd\u5149\uff08\u6ce2\u957f460-470\u00a0nm\uff09\u7684\u8981\u6c42\uff0c\u8fd9\u4e25\u91cd\u963b\u788d\u4e86PeLEDs\u5728\u663e\u793a\u6280\u672f\u4e2d\u7684\u5e94\u7528\u3002\u56e0\u6b64\uff0c\u8bbe\u8ba1\u6ee1\u8db3NTSC\u6807\u51c6\u7684\u9ad8\u6027\u80fd\u7eaf\u84ddPeLED\u4ecd\u7136\u662f\u4e00\u4e2a\u5c1a\u672a\u89e3\u51b3\u7684\u6311\u6218\u3002<\/p>\n

\u4e00\u822c\u6765\u8bf4\uff0c\u5229\u7528\u7ec4\u5206\u5de5\u7a0b\u548c\u91cf\u5b50\u9650\u57df\u7b49\u7b56\u7565\u53ef\u4ee5\u7eaf\u84dd\u5149\u7684\u9499\u949b\u77ff\u3002\u5728\u7ec4\u5206\u5de5\u7a0b\u65b9\u9762\uff0c\u6df7\u5408\u5364\u5316\u7269\uff08Br\u548cCl\uff09\u9499\u949b\u77ff\u53ef\u4ee5\u5145\u5206\u8fdb\u884c\u5e26\u9699\u88c1\u526a\uff0c\u8986\u76d6\u6574\u4e2a\u84dd\u8272\u5149\u8c31\u8303\u56f4\u3002\u7136\u800c\uff0c\u6df7\u5408\u5364\u5316\u7269\u4f1a\u5bfc\u81f4\u6676\u683c\u5931\u914d\u548c\u76f8\u5206\u79bb\uff0c\u4ece\u800c\u524a\u5f31\u4e86PeLEDs\u7684\u6027\u80fd\u3002\u6b64\u5916\uff0c\u7531\u4e8eCl\u7a7a\u4f4d\u7684\u5f62\u6210\u80fd\u91cf\u8f83\u4f4e\uff0c\u5f88\u5bb9\u6613\u5728\u9499\u949b\u77ff\u4e2d\u5f62\u6210Cl\u7a7a\u4f4d\uff0c\u5728\u6b64\u8fc7\u7a0b\u4e2d\u8bf1\u5bfc\u5e26\u9699\u5185\u66f4\u6df1\u7684\u7f3a\u9677\uff1b\u8fd9\u5c06\u4e0d\u53ef\u9006\u5730\u6355\u83b7\u7535\u8377\u8f7d\u6d41\u5b50\uff0c\u5e76\u6781\u5927\u5730\u6291\u5236\u8f90\u5c04\u91cd\u7ec4\uff0c\u4ece\u800c\u5bfc\u81f4PeLEDs\u7684\u6548\u7387\u8f83\u5dee\u3002\u6b64\u5916\uff0c\u8fd9\u4e9b\u7f3a\u9677\u53ef\u4ee5\u901a\u8fc7\u8bf1\u5bfc\u5364\u5316\u7269\u79bb\u5b50\u8fc1\u79fb\u6765\u4fc3\u8fdbPeLEDs\u7684\u964d\u89e3\uff0c\u5bfc\u81f4\u7ed3\u6784\u7a33\u5b9a\u6027\u5dee\u3002\u5355\u5364\u5316\u7269\uff08Br\uff09\u9499\u949b\u77ff\u53ef\u4ee5\u5229\u7528\u91cf\u5b50\u9650\u57df\u6548\u7387\uff0c\u901a\u8fc7\u51cf\u5c0f\u5176\u5c3a\u5bf8\u84dd\u79fb\u5230\u7eaf\u84dd\u5149\uff0c\u6bd4\u5982\u5c3a\u5bf8\u4e3a\u22484\u00a0nm\u7684CsPbBr3<\/sub>\u91cf\u5b50\u70b9\uff08QDs\uff09\uff0c\u53ef\u4ee5\u9632\u6b62PeLEDs\u7684\u76f8\u5206\u79bb\u548cCl\u7a7a\u4f4d\u7684\u4ea7\u751f\u3002\u7136\u800c\uff0c\u5bf9\u4e8e\u5c0f\u5c3a\u5bf8\u7684QDs\u6765\u8bf4\uff0c\u5b83\u4eec\u5de8\u5927\u7684\u8868\u9762\u4f53\u79ef\u6bd4\u4ecd\u7136\u4fc3\u8fdb\u4e86\u5927\u91cf\u8868\u9762\u7f3a\u9677\u7684\u4ea7\u751f\uff0c\u5bfc\u81f4QDs\u8367\u5149\u4ea7\u7387\u4f4e\u548c\u7a33\u5b9a\u6027\u5dee\uff0c\u96be\u4ee5\u83b7\u5f97\u9ad8\u6027\u80fdPeLEDs\u3002\u66f4\u91cd\u8981\u7684\u662f\uff0c\u7eaf\u84dd\u5149PeLEDs\u4eae\u5ea6\u4f4e\uff08<1000cd m-2<\/sup>\uff09\uff0c\u4e14\u7a33\u5b9a\u6027\u5dee\u3001\u5bff\u547d\u975e\u5e38\u77ed\uff0c\u901a\u5e38\u5728\u51e0\u79d2\u6216\u51e0\u5206\u949f\u7684\u8303\u56f4\u5185\uff0c\u6700\u9ad8\u62a5\u9053\u7684\u5de5\u4f5c\u534a\u8870\u671f\u4e0d\u8db31\u5c0f\u65f6\u3002<\/p>\n

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

\u8fd1\u65e5\uff0c\u5317\u4eac\u79d1\u6280\u5927\u5b66\u7530\u5efa\u519b\u6559\u6388\uff08\u901a\u8baf\u4f5c\u8005<\/b><\/strong>\uff09\u56e2\u961f\u8bbe\u8ba1\u4e86\u4e00\u79cd\u65b0\u578b\u7684\u9178\u8680\u9a71\u52a8\u7684\u914d\u4f53\u4ea4\u6362\u7b56\u7565\uff0c\u83b7\u5f97\u4e86\u8d85\u4f4e\u7f3a\u9677\u6001\u5bc6\u5ea6\u548c\u9ad8\u7a33\u5b9a\u6027\u7684\u7eaf\u84dd\u5149\uff08465 nm\uff09\u3001\u5c0f\u5c3a\u5bf8\uff08\u22484nm\uff09CsPbBr3<\/sub>\u9499\u949b\u77ff\u91cf\u5b50\u70b9\uff08QDs\uff09\u3002\u8be5\u7b56\u7565\u662f\u5148\u4f7f\u7528\u9178\u6eb4\u5316\u6c22\uff08HBr\uff09\u6765\u8680\u523b\u4e0d\u5b8c\u7f8e\u7684[PbBr6<\/sub>]4-<\/sup>\u516b\u9762\u4f53\uff0c\u4ece\u800c\u53bb\u9664\u8868\u9762\u7f3a\u9677\u548c\u8fc7\u591a\u7684\u7fa7\u9178\u76d0\u914d\u4f53\u3002\u518d\u5148\u540e\u5f15\u5165\u5341\u4e8c\u70f7\u57fa\u80fa\u548c\u82ef\u4e59\u80fa\u6765\u952e\u5408QDs\u5269\u4f59\u672a\u914d\u4f4d\u7684\u4f4d\u70b9\uff0c\u5e76\u4e0e\u539f\u6709\u957f\u94fe\u6709\u673a\u914d\u4f53\u8fdb\u884c\u539f\u4f4d\u4ea4\u6362\uff0c\u4ece\u800c\u8fbe\u523097%\u7684\u91cf\u5b50\u8367\u5149\u4ea7\u7387\uff0c\u800c\u4e14\u5176\u7a33\u5b9a\u6027\u5f97\u5230\u663e\u8457\u63d0\u9ad8\u3002\u57fa\u4e8e\u8be5QDs\u7684PeLEDs\u8868\u73b0\u51fa\u7eaf\u84dd\u5149\u7684\u7535\u81f4\u53d1\u5149\uff08470\u00a0nm\uff09\u548cEQE\u4e3a4.7%\u3002\u800c\u4e14\uff0c\u5176\u4eae\u5ea6\u4e3a3850\u00a0cd m-2<\/sup>\uff0c\u8fd9\u662f\u8fc4\u4eca\u4e3a\u6b62\u62a5\u9053\u7684\u7eaf\u84dd\u5149PeLEDs\u7684\u6700\u9ad8\u4eae\u5ea6\u3002\u6b64\u5916\uff0c\u8be5PeLEDs\u8fd8\u8868\u73b0\u51fa\u5f3a\u5927\u7684\u8010\u4e45\u6027\uff0c\u5728\u8fde\u7eed\u5de5\u4f5c\u7684\u60c5\u51b5\u4e0b\uff0c\u534a\u8870\u671f\u8d85\u8fc712\u5c0f\u65f6\uff0c\u8fd9\u4e5f\u662f\u84dd\u5149PeLEDs\u5f53\u524d\u62a5\u9053\u7684\u6700\u9ad8\u503c\u3002\u8be5\u6210\u679c\u4ee5\u9898\u4e3a\u201cPerovskite Quantum Dots with Ultralow Trap Density by Acid Etching-Driven Ligand Exchange for High Luminance and Stable Pure-Blue Light-Emitting Diodes<\/b><\/strong>\u201d\u53d1\u8868\u5728\u4e86Adv. Mater.<\/b><\/strong>\u4e0a\u3002<\/p>\n

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

\u56fe1 \u9178\u8680\u9a71\u52a8\u7684\u914d\u4f53\u4ea4\u6362\u8fc7\u7a0b<\/b><\/strong>\"\"<\/p>\n

a\uff09\u672c\u7b56\u7565\u7684\u793a\u610f\u56fe\u3002\u00a0<\/p>\n

b\uff09FTIR\u7ed3\u679c\u3002\u00a0<\/p>\n

c\uff09Pb-4f\u7684\u9ad8\u5206\u8fa8\u7387XPS\u5149\u8c31\u3002\u00a0<\/p>\n

d\uff09\u539f\u59cb\u3001\u8680\u523b\u548c\u5904\u7406\u7684\u91cf\u5b50\u70b9\u7684\u65f6\u95f4\u5206\u8fa8PL\u8870\u51cf\u8c31\u3002<\/p>\n

\u56fe2 \u91cf\u5b50\u70b9\u7684\u5f62\u8c8c\u548c\u5149\u5b66\u6027\u80fd<\/b><\/strong>\"\"<\/p>\n

a\uff09\u539f\u59cb\u548cb\uff09\u5904\u7406\u8fc7\u7684CsPbBr3<\/sub>\u00a0QDs\u7684TEM\u56fe\u50cf\u3002\u63d2\u56fe\u663e\u793a\u4e86\u76f8\u5e94\u7684\u9ad8\u5206\u8fa8\u7387TEM\u548cFFT\u8c31\u3002\u6bd4\u4f8b\u5c3a\uff1a2 nm\u3002<\/p>\n

c\uff09\u539f\u59cb\u548c\u5df2\u5904\u7406\u91cf\u5b50\u70b9\u7684PL\u548c\u5438\u6536\u5149\u8c31\u3002<\/p>\n

d\uff09\u7684\u77ac\u6001\u5438\u6536\uff08TA\uff0c\u6fc0\u53d1354 nm\uff09\u6f02\u767d\u6062\u590d\u66f2\u7ebf\u7684\u6f14\u53d8\uff0ce\uff09\u539f\u59cb\u548cf\uff09\u5904\u7406\u7684QDs\u5728\u7d2b\u5916\u7ebf\uff08UV\uff09\u7167\u5c04\u4e0d\u540c\u65f6\u95f4\u540e\u7684PL\u5149\u8c31\u3002\u63d2\u56fe\uff1a\u7d2b\u5916\u7ebf\u7167\u5c04\u4e0d\u540c\u65f6\u95f4\u540e\u7684\u539f\u59cb\u548c\u7ecf\u8fc7\u5904\u7406\u7684\u91cf\u5b50\u70b9\u7684\u7167\u7247\u3002<\/p>\n

\u56fe3 PeLED\u7684<\/b><\/strong>\u5668\u4ef6<\/b><\/strong>\u7ed3\u6784\u548c\u7535\u81f4\u53d1\u5149\u6027\u80fd<\/b><\/strong>\"\"<\/p>\n

a\uff09\u5668\u4ef6\u7ed3\u6784\u3002\u00a0<\/p>\n

b\uff09\u5668\u4ef6TEM\uff08STEM\uff09\u6a2a\u622a\u9762\u56fe\u3002\u00a0<\/p>\n

c\uff09QD\u8584\u819c\u7684PL\u548cPeLEDs\u7684EL\u3002\u00a0<\/p>\n

d\uff09PeLEDs\u7684CIE\u5750\u6807\u3002<\/p>\n

\u56fe4 PeLEDs\u7684\u6027\u80fd\u548c\u7a33\u5b9a\u6027<\/b><\/strong>\"\"<\/p>\n

a\uff09PeLEDs\u7684\u7535\u6d41\u5bc6\u5ea6\u548c\u4eae\u5ea6\u4e0e\u504f\u7f6e\u7535\u538b\u7684\u5173\u7cfb\u3002<\/p>\n

b\uff09PeLEDs\u7684EQE\u4e0e\u7535\u6d41\u5bc6\u5ea6\u7684\u5173\u7cfb\u3002<\/p>\n

c\uff09\u5728\u4e0d\u540c\u7684\u5de5\u4f5c\u7535\u538b\u4e0b\uff0cPeLEDs\u7684EL\u5149\u8c31\u3002<\/p>\n

d\uff09\u5728\u521d\u59cb\u4eae\u5ea6\u4e3a102 cd m-2<\/sup>\u7684\u60c5\u51b5\u4e0b\uff0cPeLEDs\u7684\u5de5\u4f5c\u534a\u8870\u671fT50<\/sub>\u3002<\/p>\n

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

\u8fd9\u9879\u5de5\u4f5c\u5c06\u9178\u8680\u548c\u914d\u4f53\u4ea4\u6362\u7ed3\u5408\u8d77\u6765\uff0c\u5236\u5907\u51fa\u9ad8\u8d28\u91cf\u7684\u7eaf\u84dd\u8272\u53d1\u5149\u9499\u949b\u77ffCsPbBr3<\/sub>\u00a0QDs\u3002\u5f3a\u9178\u6027HBr\u8680\u523b\u4e86\u5177\u6709\u7a7a\u4f4d\u7f3a\u9677\u7684\u4e0d\u5b8c\u7f8e\u516b\u9762\u4f53\uff0c\u5e76\u4eceQDs\u4e2d\u53bb\u9664\u591a\u4f59\u7684\u7fa7\u9178\u76d0\u914d\u4f53\u3002\u7136\u540e\uff0c\u901a\u8fc7\u77ed\u652f\u94feDDDAM\u94fe\u548cPEA\u7269\u79cd\u4e4b\u95f4\u7684\u914d\u4f53\u4ea4\u6362\u8fc7\u7a0b\uff0c\u968f\u540e\u4e0eQDs\u8868\u9762\u5f62\u6210\u5f3a\u7684L\u578b\u914d\u4f4d\u4f5c\u7528\u3002\u8fd9\u4e00\u7b56\u7565\u663e\u8457\u63d0\u9ad8\u4e86QDs\u7684\u7a33\u5b9a\u6027\uff0c\u6d88\u9664\u5927\u91cf\u7f3a\u9677\uff0c\u83b7\u5f9797%\u7684\u91cf\u5b50\u8367\u5149\u4ea7\u7387\u3002\u57fa\u4e8e\u8be5QDs\u7684PeLEDs\u8868\u73b0\u51fa\u7eaf\u84dd\u5149\u53d1\u5c04\uff08470nm\uff09\u548c4.7%\u7684EQE\uff0c\u7b26\u5408NTSC\u548cRec.2020\u6807\u51c6\uff0c\u662f\u4e00\u79cd\u7406\u60f3\u7684\u84dd\u5149\u53d1\u5c04\u30023850cd m-2<\/sup>\u7684\u4eae\u5ea6\u548c12\u5c0f\u65f6\u7684\u534a\u8870\u671f\u4e5f\u662f\u8fc4\u4eca\u4e3a\u6b62\u6240\u62a5\u9053\u7684\u7eaf\u84dd\u5149PeLEDs\u7684\u6700\u9ad8\u4eae\u5ea6\u548c\u7a33\u5b9a\u6027\u8868\u73b0\u3002\u56e0\u6b64\uff0c\u8fd9\u4e00\u7b56\u7565\u4e3a\u63a8\u52a8PeLEDs\u7684\u53d1\u5c55\u548c\u5e94\u7528\u63d0\u4f9b\u4e86\u4e00\u79cd\u9014\u5f84\u3002<\/p>\n

\u6587\u732e\u94fe\u63a5\uff1a<\/b><\/strong>Perovskite Quantum Dots with Ultralow Trap Density by Acid Etching-Driven Ligand Exchange for High Luminance and Stable Pure-Blue Light-Emitting Diodes<\/u><\/a>\uff08Adv. Mater.\uff0c2021\uff0cDOI:10.1002\/adma.202006722\uff09<\/p>\n

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