{"id":225770,"date":"2021-08-12T10:35:45","date_gmt":"2021-08-12T02:35:45","guid":{"rendered":"\/\/m.iemloyee.com\/?p=225770"},"modified":"2021-08-12T10:32:27","modified_gmt":"2021-08-12T02:32:27","slug":"jmcc%e4%b8%8e%e8%93%9d%e5%85%89led%e8%8a%af%e7%89%87%e7%bb%84%e5%90%88%e5%8f%af%e5%ae%9e%e7%8e%b0%e9%ab%98%e6%98%be%e8%89%b2%e6%8c%87%e6%95%b0%e7%99%bd%e5%85%89%e7%9a%84cay2al4sio12ce3mn2","status":"publish","type":"post","link":"\/\/m.iemloyee.com\/?p=225770","title":{"rendered":"JMCC:\u4e0e\u84dd\u5149LED\u82af\u7247\u7ec4\u5408\u53ef\u5b9e\u73b0\u9ad8\u663e\u8272\u6307\u6570\u767d\u5149\u7684CaY2Al4SiO12:Ce3+,Mn2+\u5355\u57fa\u8d28\u8367\u5149\u7c89"},"content":{"rendered":"

\"\"<\/p>\n

\u7814\u7a76\u80cc\u666f<\/b><\/strong><\/p>\n

\u767d\u5149LED\u5177\u6709\u53d1\u5149\u6548\u7387\u9ad8\u3001\u4f7f\u7528\u5bff\u547d\u957f\u3001\u8282\u80fd\u548c\u73af\u4fdd\u7b49\u4f18\u70b9\u6210\u4e3a\u65b0\u4e00\u4ee3\u7167\u660e\u5149\u6e90\u3002\u76ee\u524d\u5546\u7528\u767d\u5149LED\u7684\u4e3b\u8981\u5b9e\u73b0\u65b9\u5f0f\u662f\u91c7\u7528\u84dd\u5149LED\u82af\u7247\u4e0e\u9ec4\u8272YAG:Ce3+<\/sup>\u8367\u5149\u7c89\u7ec4\u5408\u5f97\u5230\u767d\u5149\uff0c\u4f46\u662f\u8fd9\u79cd\u7ec4\u5408\u65b9\u5f0f\u7531\u4e8e\u7f3a\u5c11\u7ea2\u5149\u6210\u5206\u5bfc\u81f4\u5f97\u5230\u7684\u767d\u5149LED\u5668\u4ef6\u663e\u8272\u6307\u6570\u4f4e(Ra < 80)\uff0c\u8272\u6e29\u8f83\u9ad8(CCT > 6000 K)\uff0c\u4e0d\u80fd\u6ee1\u8db3\u9ad8\u8d28\u91cf\u7167\u660e\u7684\u9700\u6c42\u3002\u5728\u4f17\u591a\u63d0\u9ad8\u767d\u5149LED\u5668\u4ef6\u7684\u663e\u8272\u6307\u6570\u7684\u65b9\u5f0f\u4e2d\uff0c\u5728Ce3+<\/sup>\u6fc0\u6d3b\u7684\u77f3\u69b4\u77f3\u57fa\u8367\u5149\u7c89\u4e2d\u5171\u63ba\u6742Mn\u5e76\u901a\u8fc7Ce-Mn\u7684\u80fd\u91cf\u4f20\u9012\u6765\u63d0\u9ad8\u5668\u4ef6\u7684\u663e\u8272\u6307\u6570\u5f15\u8d77\u4e86\u7814\u7a76\u4eba\u5458\u7684\u5173\u6ce8\u3002\u867d\u7136\u901a\u8fc7\u5728Ce3+<\/sup>\u6fc0\u6d3b\u7684\u77f3\u69b4\u77f3\u57fa\u8d28\u7684\u5171\u63ba\u6742Mn\u53ef\u4ee5\u63d0\u9ad8\u5668\u4ef6\u7684\u663e\u8272\u6307\u6570\uff0c\u4f46\u662f\u5668\u4ef6\u7684\u663e\u8272\u6307\u6570\u4ecd\u7136\u6ee1\u8db3\u4e0d\u4e86\u9ad8\u8d28\u91cf\u7167\u660e\u7684\u9700\u6c42\u3002\u6b64\u5916\uff0c\u5173\u4e8eMn\u5728750 nm\u5de6\u53f3\u7684\u6df1\u7ea2\u8272\u53d1\u5149\u6765\u6e90\u76ee\u524d\u4ecd\u4e0d\u660e\u786e\uff0c\u56e0\u6b64\uff0c\u7814\u7a76Mn\u5728\u77f3\u69b4\u77f3\u7ed3\u6784\u4e2d\u7684\u683c\u4f4d\u5360\u636e\u60c5\u51b5\u5177\u6709\u91cd\u8981\u7684\u610f\u4e49\u3002<\/p>\n

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

\u8fd1\u65e5\u5e7f\u4e1c\u7701\u79d1\u5b66\u9662\u8d44\u6e90\u5229\u7528\u4e0e\u7a00\u571f\u5f00\u53d1\u7814\u7a76\u6240(\u539f\u5e7f\u4e1c\u7701\u79d1\u5b66\u9662\u7a00\u6709\u91d1\u5c5e\u7814\u7a76\u6240)\u502a\u6d77\u52c7\u6559\u6388\u56e2\u961f\u4e0e\u4e2d\u5c71\u5927\u5b66\u5434\u660e\u5a12\u6559\u6388\u56e2\u961f\u7b49\u5408\u4f5c\uff0c\u901a\u8fc7\u5316\u5b66\u5355\u5143\u5171\u53d6\u4ee3\u7b56\u7565\u4ee5[Ca2+<\/sup>-Si4+<\/sup>]\u5171\u53d6\u4ee3[Al3+<\/sup>-Al3+<\/sup>]\u5355\u5143\uff0c\u6784\u5efa\u4e86\u77f3\u69b4\u77f3\u7ed3\u6784\u7684CaY2<\/sub>Al4<\/sub>SiO12<\/sub>(CYAS)\u3002\u4f5c\u8005\u5728\u8be5\u57fa\u8d28\u4e2d\u5229\u7528Ce3+<\/sup>-Mn2+<\/sup>\u80fd\u91cf\u4f20\u9012\uff0c\u83b7\u5f97\u5728\u84dd\u5149\u6fc0\u53d1\u4e0b\u53d1\u5c04\u5149\u8c31\u8986\u76d6\u8303\u56f4\u5e7f\u4e14\u989c\u8272\u53d8\u5316\u53ef\u8c03\u7684\u7cfb\u5217\u8367\u5149\u7c89\uff0c\u5e76\u4e0e\u84dd\u5149LED\u5668\u4ef6\u5c01\u88c5\u5f97\u5230\u4e86\u663e\u8272\u6307\u6570\u5927\u4e8e90\u7684\u767d\u5149LED\u5668\u4ef6\u3002<\/p>\n

\u4f5c\u8005\u901a\u8fc7X\u5c04\u7ebf\u7c89\u672b\u884d\u5c04(XRD)\u53caRietveld\u7ed3\u6784\u7cbe\u4fee\u89e3\u6790\u4e86CYAS:Ce,Mn\u8367\u5149\u7c89\u7684\u6676\u4f53\u7ed3\u6784\u3002X\u5c04\u7ebf\u5149\u7535\u5b50\u80fd\u8c31(XPS)\u548c\u7535\u5b50\u987a\u78c1\u5171\u632f\u8c31\u8c31(EPR)\u7ed3\u679c\u8bc1\u660e\u6837\u54c1\u4e2dCe\u548cMn\u7684\u4ef7\u6001\u5206\u522b\u4e3a+3\u548c+2\u3002\u8367\u5149\u5149\u8c31\u548c\u8367\u5149\u5bff\u547d\u5171\u540c\u8bc1\u5b9e\u4e86Mn2+<\/sup>\u5728CYAS\u57fa\u8d28\u4e2d\u5360\u636e\u4e24\u4e2a\u4e0d\u540c\u7684\u683c\u4f4d\u3002\u5728460 nm\u84dd\u5149\u6fc0\u53d1\u4e0b\uff0cCYAS:Ce3+<\/sup>,Mn2+<\/sup>\u8367\u5149\u7c89\u5728480-800nm\u8303\u56f4\u5448\u73b0\u4e09\u4e2a\u5bbd\u7684\u53d1\u5c04\u5e26\u3002\u4f5c\u8005\u8ba1\u7b97\u4e86Mn2+<\/sup>\u5728\u4e0d\u540c\u683c\u4f4d\u4e2d\u7684\u6676\u4f53\u573a\u5f3a\u5ea6\uff0c\u786e\u5b9a\u4e86\u5149\u8c31\u4e2d\u4f4d\u4e8e615 nm\u5de6\u53f3\u7684\u7ea2\u5149\u548c750 nm\u5de6\u53f3\u7684\u6df1\u7ea2\u5149\u5206\u522b\u6765\u6e90\u4e8eMn2+<\/sup>\u5728Ca2+<\/sup>\/Y3+<\/sup>\u683c\u4f4d\u548c\u516d\u914d\u4f4d\u7684Al3+<\/sup>\u683c\u4f4d\u7684\u53d1\u5149\u3002<\/p>\n

\u4f5c\u8005\u5bf9CYAS:Ce3+<\/sup>,Mn2+<\/sup>\u7cfb\u5217\u8367\u5149\u7c89\u5728LED\u4e0a\u7684\u6f5c\u5728\u5e94\u7528\u5c55\u5f00\u4e86\u7814\u7a76\uff0c\u53d1\u73b0\u8be5\u7cfb\u5217\u8367\u5149\u7c89\u7684\u731d\u706d\u6e29\u5ea6\u5747\u9ad8\u4e8e200 \u2103\uff0c\u5177\u6709\u8f83\u597d\u7684\u8367\u5149\u70ed\u7a33\u5b9a\u6027\u3002\u6700\u7ec8\u4f5c\u8005\u5c06\u6240\u5408\u6210\u7684\u8367\u5149\u7c89\u4e0e\u84dd\u5149LED\u82af\u7247\u5c01\u88c5\u5f97\u5230\u4e86\u663e\u8272\u6307\u6570\u9ad8\u8fbe90.5\u7684\u767d\u5149LED\u5668\u4ef6\u3002<\/p>\n

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

\"\"<\/p>\n

\u56fe1 XRD Rietveld\u7cbe\u4fee\u7ed3\u679c(a)\uff0cCaY2<\/sub>Al4<\/sub>SiO12<\/sub>\u7684\u6676\u4f53\u7ed3\u6784\u56fe(b)\uff0c\u6676\u80de\u4f53\u79ef\u4e0eMn\u6d53\u5ea6\u7684\u5173\u7cfb\u56fe(c)\u548c\u9633\u79bb\u5b50\u4e0e\u6c27\u79bb\u5b50\u4e4b\u95f4\u7684\u952e\u957f\u4e0eMn\u6d53\u5ea6\u7684\u5173\u7cfb\u56fe(d-f)\u3002<\/p>\n

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

\u56fe2 CYAS:0.02Ce,0.30Mn\u7684XPS\u8c31(a)\uff0cCe3d\u7684\u9ad8\u5206\u8fa8XPS\u8c31(b)\uff0cMn2p\u7684\u9ad8\u5206\u8fa8XPS\u8c31(c)\uff0cMn3s\u7684\u9ad8\u5206\u8fa8XPS\u8c31(d)\u548cCYAS:0.02Ce,0.05Mn\u4e2dMn\u7684EPR(e)\u3002<\/p>\n

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

\u56fe3 CYAS: Ce3+<\/sup>\u7684\u6fc0\u53d1\u548c\u53d1\u5c04\u5149\u8c31\u56fe(a)\uff0cCYAS: Mn2+<\/sup>\u7684\u6fc0\u53d1\u548c\u53d1\u5c04\u5149\u8c31\u56fe(b)\uff0cCYAS: Ce3+<\/sup>,Mn2+<\/sup>\u7684\u6fc0\u53d1\u548c\u53d1\u5c04\u5149\u8c31\u56fe(c)\uff0cCe3+<\/sup>\u548cMn2+<\/sup>\u5728CYAS:0.02Ce3+<\/sup>,0.1Mn2+<\/sup>\u4e2d\u7684\u8367\u5149\u5bff\u547d\u8870\u51cf\u66f2\u7ebf\u56fe(d)\u548cCe3+<\/sup>-Mn2+<\/sup>\u4e4b\u95f4\u7684\u80fd\u91cf\u4f20\u9012\u793a\u610f\u56fe(e)\u3002<\/p>\n

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

\u56fe4 CYAS:0.02Ce3+<\/sup>,x<\/i><\/em>Mn2+<\/sup>\u8367\u5149\u7c89(x<\/i><\/em>\u00a0= 0.00- 0.30)\u9ad8\u65af\u62df\u5408\u56fe(a)\uff0c\u5f52\u4e00\u5316\u7684\u53d1\u5c04\u5149\u8c31\u56fe\uff0c\u63d2\u56fe\u4e3a\u91cf\u5b50\u6548\u7387\u4e0eMn2+<\/sup>\u63ba\u6742\u6d53\u5ea6\u7684\u5173\u7cfb\u56fe(b)\u548c\u8272\u5750\u6807\u56fe(c) (\u03bbex<\/sub>\u00a0= 460 nm)\u3002<\/p>\n

\"\"<\/p>\n

\u56fe5 \u5229\u7528CYAS:Ce3+<\/sup>,x<\/i><\/em>Mn2+<\/sup>\u8367\u5149\u7c89(x<\/i><\/em>\u00a0= 0, 0.10, 0.30)\u5c01\u88c5\u5f97\u5230\u767d\u5149LED\u5668\u4ef6\u7684\u7535\u81f4\u53d1\u5149\u5149\u8c31\u56fe(a)\u548c\u5bf9\u5e94\u7684\u8272\u5750\u6807\u56fe(b)\u3002\u00a0<\/b><\/strong><\/p>\n

\u8bba\u6587\u4fe1\u606f<\/b><\/strong><\/p>\n

CaY2<\/sub>Al4<\/sub>SiO12<\/sub>:Ce3+<\/sup>,Mn2+<\/sup>:a single component\u00a0phosphor to produce high color rendering index\u00a0WLEDs with a blue chip\uff0cQiuhong Zhang\uff0cJunhao Li, Wei Jiang, Litian Lin, Jianhong Ding, Mikhail G.Brik, Maxim S.Molokeew, Haiyong Ni and Mingmei Wu,DOI:10.1039\/d1tc01770e\uff0c2021.<\/p>\n

\u6587\u7ae0\u7684\u7b2c\u4e00\u4f5c\u8005\u662f\u5e7f\u4e1c\u7701\u79d1\u5b66\u9662\u8d44\u6e90\u5229\u7528\u4e0e\u7a00\u571f\u5f00\u53d1\u7814\u7a76\u6240(\u539f\u5e7f\u4e1c\u7701\u79d1\u5b66\u9662\u7a00\u6709\u91d1\u5c5e\u7814\u7a76\u6240)\u5f20\u79cb\u7ea2\u6b63\u9ad8\u7ea7\u5de5\u7a0b\u5e08\uff0c\u5e7f\u4e1c\u7701\u79d1\u5b66\u9662\u8d44\u6e90\u5229\u7528\u4e0e\u7a00\u571f\u5f00\u53d1\u7814\u7a76\u6240\u674e\u4fca\u8c6a\u535a\u58eb\u548c\u502a\u6d77\u52c7\u6559\u6388\u4ee5\u53ca\u4e2d\u5c71\u5927\u5b66\u7684\u5434\u660e\u5a12\u6559\u6388\u4e3a\u672c\u6587\u7684\u5171\u540c\u901a\u8baf\u4f5c\u8005\u3002<\/p>\n

\u8bba\u6587\u8fde\u63a5\uff1ahttps:\/\/doi.org\/10.1039\/D1TC01770E<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

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