{"id":200897,"date":"2020-05-02T06:21:17","date_gmt":"2020-05-01T22:21:17","guid":{"rendered":"\/\/m.iemloyee.com\/?p=200897"},"modified":"2020-05-01T22:21:26","modified_gmt":"2020-05-01T14:21:26","slug":"%e5%a4%aa%e5%8e%9f%e7%90%86%e5%b7%a5j-mater-chem-c%ef%bc%9a%e9%ab%98%e6%98%be%e8%89%b2%e6%80%a7%e6%9a%96%e7%99%bd%e5%85%89led%e7%94%a8%e9%ab%98%e6%95%88%e7%bb%bf%e8%89%b2%e8%8d%a7%e5%85%89%e7%b2%89","status":"publish","type":"post","link":"\/\/m.iemloyee.com\/?p=200897","title":{"rendered":"\u592a\u539f\u7406\u5de5J. Mater. Chem. C\uff1a\u9ad8\u663e\u8272\u6027\u6696\u767d\u5149LED\u7528\u9ad8\u6548\u7eff\u8272\u8367\u5149\u7c89"},"content":{"rendered":"
\u3010\u524d\u8a00\u3011<\/strong><\/p>\n \u767d\u5149LED\u88ab\u8a89\u4e3a\u7b2c\u56db\u4ee3\u7167\u660e\u5149\u6e90\uff0c\u5177\u6709\u5149\u6548\u9ad8\u3001\u8282\u80fd\u73af\u4fdd\u3001\u5bff\u547d\u957f\u3001\u5b89\u5168\u53ef\u9760\u7b49\u4f18\u70b9\uff0c\u5728\u7167\u660e\u4e0e\u663e\u793a\u7b49\u9886\u57df\u62e5\u6709\u5e9e\u5927\u7684\u5e94\u7528\u5e02\u573a\u3002\u5546\u7528\u767d\u5149LED\u7167\u660e\u5668\u4ef6\u4e3b\u8981\u57fa\u4e8e\u8367\u5149\u7c89\u5149\u8f6c\u6362\u578b\uff0c\u56e0\u6b64\u6240\u7528\u8367\u5149\u7c89\u7684\u6027\u80fd\u51b3\u5b9a\u4e86\u767d\u5149LED\u5668\u4ef6\u7684\u5149\u7535\u6027\u80fd\uff08\u5305\u62ec\uff1a\u663e\u8272\u6307\u6570\u3001\u8272\u6e29\u3001\u6548\u7387\u7b49\uff09\u3002\u76ee\u524d\u5b9e\u73b0\u767d\u5149LED\u4e3b\u8981\u6709\u4e24\u79cd\u4e3b\u6d41\u65b9\u5f0f\uff1a\uff081\uff09\u84dd\u5149LED\u82af\u7247(440-480 nm)\u6fc0\u53d1\u9ec4\u8272\u8367\u5149\u7c89\u3002\u8fd9\u79cd\u65b9\u6848\u6280\u672f\u6210\u719f\u3001\u6210\u672c\u8f83\u4f4e\uff1b\u4f46\u5f97\u5230\u7684\u5149\u6e90\u5c5e\u4e8e\u51b7\u767d\u5149\uff0c\u5176\u8272\u6e29\u9ad8\u3001\u663e\u8272\u6307\u6570\u4f4e\uff0c\u4ece\u800c\u4e0d\u9002\u5408\u5ba4\u5185\u901a\u7528\u7167\u660e\u3002\uff082\uff09\u8fd1\u7d2b\u5149LED\u82af\u7247(380-420 nm)\u6fc0\u53d1RGB(\u7ea2\/\u7eff\/\u84dd)\u4e09\u57fa\u8272\u8367\u5149\u7c89\u3002\u8be5\u79cd\u65b9\u6848\u7684\u5149\u6e90\u5177\u6709\u663e\u8272\u6307\u6570\u9ad8\u3001\u8272\u5f69\u8fd8\u539f\u6027\u597d\u3001\u4ea7\u54c1\u7a33\u5b9a\u53ef\u9760\u7684\u4f18\u70b9\u3002\u56e0\u6b64\uff0c\u63a2\u7d22\u80fd\u88ab\u8fd1\u7d2b\u5916\u5149\u6fc0\u53d1\u7684\u9ad8\u6027\u80fd\u4e09\u57fa\u8272\u8367\u5149\u7c89\u8feb\u5728\u7709\u776b\u3002\u6b64\u5916\uff0c\u7eff\u8272\u8367\u5149\u7c89\u7684\u53d1\u5149\u5cf0\u503c\u6ce2\u957f\u4e0e\u4eba\u773c\u89c6\u611f\u5ea6\u66f2\u7ebf\u7684\u5cf0\u503c\u6ce2\u957f\u57fa\u672c\u76f8\u540c\uff0c\u56e0\u800c\u7eff\u8272\u8367\u5149\u7c89\u5728\u6700\u5927\u7a0b\u5ea6\u4e0a\u5f71\u54cd\u4e86\u4e09\u57fa\u8272\u8367\u5149\u7c89\u7684\u53d1\u5149\u6548\u7387\u3002\u4e8e\u662f\uff0c\u7814\u53d1\u6210\u672c\u4f4e\u3001\u5408\u6210\u5de5\u827a\u7b80\u5355\u7684\u9ad8\u6548\u7eff\u8272\u8367\u5149\u6750\u6599\u662f\u4eba\u4eec\u8ffd\u6c42\u7684\u76ee\u6807\u3002<\/p>\n \u3010\u6210\u679c\u7b80\u4ecb\u3011<\/strong><\/p>\n \u8fd1\u671f\uff0c\u592a\u539f\u7406\u5de5\u5927\u5b66\u9ec4\u5c0f\u52c7\u6559\u6388\uff08\u901a\u8baf\u4f5c\u8005\uff09\u8bfe\u9898\u7ec4\u91c7\u7528\u9ad8\u6e29\u56fa\u76f8\u6cd5\u5236\u5907\u4e86\u4e00\u79cd\u53ef\u88ab\u5bbd\u5e26\u8fd1\u7d2b\u5916\u5149\u6fc0\u53d1\u7684<\/strong>Ce3+<\/sup>\/Tb3+<\/sup><\/strong>\u5171\u63ba<\/strong>Ca2<\/sub>YHf2<\/sub>Al3<\/sub>O12<\/sub><\/strong>\u00a0<\/sub><\/strong>(CYHA)<\/strong>\u9ad8\u6548\u7eff\u8272\u8367\u5149\u7c89\u3002<\/strong>\u8be5\u8367\u5149\u7c89\u7684\u6fc0\u53d1\u5e26\u4f4d\u4e8e370~470 nm\u6ce2\u6bb5\uff0c\u6700\u4f73\u6fc0\u53d1\u5cf0\u4e3a408 nm\uff0c\u4e0e\u5546\u7528400 nm\u8fd1\u7d2b\u5916LED\u82af\u7247\u76f8\u5339\u914d\u3002\u5728408 nm\u6fc0\u53d1\u4e0b\uff0c\u5229\u7528Ce3+<\/sup>\u2192Tb3+<\/sup>\u9ad8\u6548\u7684\u80fd\u91cf\u4f20\u9012\uff0c\u8be5\u7eff\u8272\u8367\u5149\u7c89\u80fd\u53d1\u5c04\u51fa\u8000\u773c\u7684\u7eff\u5149\uff0c\u5176\u53d1\u5c04\u5cf0\u4f4d\u4e8e543 nm\uff0c\u5185\u91cf\u5b50\u6548\u7387\u548c\u5916\u91cf\u5b50\u6548\u7387\u5206\u522b\u9ad8\u8fbe78.5%\u4e0e56%\u3002\u4ee4\u4eba\u5174\u594b\u7684\u662f\uff0c\u5728\u76f8\u540c\u6fc0\u53d1\u6761\u4ef6\u4e0b(408 nm)\uff0c\u8be5\u7eff\u8272\u8367\u5149\u7c89\u7684\u53d1\u5c04\u5f3a\u5ea6\u662f\u5546\u7528(Ba,Sr)2<\/sub>SiO4<\/sub>:Eu2+<\/sup>\u7eff\u8272\u8367\u5149\u7c89\u53d1\u5c04\u5f3a\u5ea6\u76843.2\u500d\u3002\u66f4\u6709\u610f\u601d\u7684\u662f\uff0c\u5229\u7528CYHA:Ce3+<\/sup>,Tb3+<\/sup>\u7eff\u8272\u8367\u5149\u7c89\u5236\u5907\u5f97\u5230\u4e86\u9ad8\u663e\u8272\u6027\u6696\u767d\u5149LED (\u663e\u8272\u6307\u6570Ra = 92.6\uff1b\u8272\u6e29CCT = 3638 K\uff1b\u8272\u5750\u6807(0.388, 0.359)\uff1b\u7535\u6d4160 mA)\u3002\u76f8\u6bd4\u4e4b\u4e0b\uff0c\u5229\u7528\u5546\u7528\u7eff\u8272(Ba,Sr)2<\/sub>SiO4<\/sub>:Eu2+<\/sup>\u8367\u5149\u7c89\u5236\u5907\u7684\u767d\u5149LED\u5668\u4ef6\u663e\u8272\u6307\u6570Ra\u4ec5\u4e3a80.5 (\u8272\u6e29CCT = 3648 K\uff1b\u8272\u5750\u6807(0.397, 0.385)\uff1b\u7535\u6d4160 mA)\u3002\u9274\u4e8eCYHA:Ce3+<\/sup>,Tb3+<\/sup>\u7eff\u8272\u8367\u5149\u7c89\u7684\u539f\u6750\u6599\u6613\u5f97\u3001\u5236\u5907\u5de5\u827a\u7b80\u5355\u3001\u53d1\u5149\u6027\u80fd\u4f18\u826f\u7684\u4f18\u70b9\uff0c\u8be5\u8367\u5149\u7c89\u6709\u671b\u7528\u4e8e\u8fd1\u7d2b\u5916\u6fc0\u53d1\u7684\u767d\u5149LED\u7167\u660e\u5668\u4ef6\u4e2d\u3002\u8be5\u7814\u7a76\u6210\u679c\u4ee5\u9898\u4e3a\u201cHighly efficient near-UV-excitable Ca2<\/sub>YHf2<\/sub>Al3<\/sub>O12<\/sub>:Ce3+<\/sup>,Tb3+<\/sup> green-emitting garnet phosphors with potential application in high color rendering warm-white LEDs\u201d\u53d1\u8868\u5728\u56fd\u9645\u8457\u540d\u671f\u520aJournal of Materials Chemistry C\u4e0a\uff0c\u7b2c\u4e00\u4f5c\u8005\u4e3a\u592a\u539f\u7406\u5de5\u5927\u5b66\u7855\u58eb\u7814\u7a76\u751f\u738b\u5c11\u8367\u3002<\/p>\n \u3010\u56fe\u6587\u5bfc\u8bfb\u3011<\/strong><\/p>\n \u56fe\u4e00\u3001<\/strong>CYHA:Ce3+<\/sup>,Tb3+<\/sup><\/strong>\u7eff\u8272\u8367\u5149\u7c89\u7684\u7269\u76f8\u4e0e\u6676\u4f53\u7ed3\u6784\u8868\u5f81<\/strong><\/p>\n (a) <\/strong>CYHA:Ce3+<\/sup>,Tb3+<\/sup>\u8367\u5149\u7c89\u7684XRD\u56fe\u3002<\/p>\n (b)<\/strong> CYHA:0.03Ce3+<\/sup>,0.6Tb3+<\/sup>\u7eff\u8272\u8367\u5149\u7c89\u7684XRD\u7cbe\u4fee\u56fe\u3002<\/p>\n (c)<\/strong> CYHA:0.03Ce3+<\/sup>,0.6Tb3+<\/sup>\u7eff\u8272\u8367\u5149\u7c89\u7684\u6676\u4f53\u7ed3\u6784\u56fe\u3002<\/p>\n \u56fe\u4e8c\u3001<\/strong>CYHA:Ce3+<\/sup>,Tb3+<\/sup><\/strong>\u7eff\u8272\u8367\u5149\u7c89\u7684\u5f62\u8c8c\u4e0e\u7ec4\u5206\u8868\u5f81<\/strong><\/p>\n (a, b) <\/strong>CYHA:0.03Ce3+<\/sup>,0.6Tb3+<\/sup>\u7eff\u8272\u8367\u5149\u7c89\u7684SEM\u56fe\u3002<\/p>\n (c) <\/strong>CYHA:0.03Ce3+<\/sup>,0.6Tb3+<\/sup>\u7eff\u8272\u8367\u5149\u7c89\u7684\u5143\u7d20mapping\u56fe\u3002<\/p>\n (d) <\/strong>CYHA:0.03Ce3+<\/sup>,0.6Tb3+<\/sup>\u7eff\u8272\u8367\u5149\u7c89\u7684EDS\u8c31\u56fe\u3002<\/p>\n \u56fe\u4e09\u3001<\/strong>CYHA:Ce3+<\/sup>,Tb3+<\/sup><\/strong>\u7eff\u8272\u8367\u5149\u7c89\u7684\u53d1\u5149\u6027\u8d28<\/strong><\/p>\n (a) <\/strong>CYHA:0.03Ce3+<\/sup>\u8367\u5149\u7c89\u7684\u6fc0\u53d1\u548c\u53d1\u5c04\u5149\u8c31\u3002<\/p>\n (b)<\/strong> CYHA:0.6Tb3+<\/sup>\u8367\u5149\u7c89\u7684\u6fc0\u53d1\u548c\u53d1\u5c04\u5149\u8c31\u3002<\/p>\n (c) <\/strong>CYHA:0.6Tb3+<\/sup>\u8367\u5149\u7c89\u7684\u6fc0\u53d1\u5149\u8c31\u4e0eCYHA:0.03Ce3+<\/sup>\u8367\u5149\u7c89\u7684\u53d1\u5c04\u5149\u8c31\u5bf9\u6bd4\u56fe\u3002<\/p>\n (d) <\/strong>CYHA:0.03Ce3+<\/sup>,0.6Tb3+<\/sup>\u8367\u5149\u7c89\u7684\u6fc0\u53d1\u548c\u53d1\u5c04\u5149\u8c31\u3002<\/p>\n \u56fe\u56db\u3001<\/strong>CYHA:Ce3+<\/sup>,Tb3+<\/sup><\/strong>\u7eff\u8272\u8367\u5149\u7c89\u7684\u53d1\u5149\u6027\u8d28<\/strong><\/p>\n (a)<\/strong> CYHA:0.03Ce3+<\/sup>,x<\/em>Tb3+<\/sup>\u8367\u5149\u7c89\u7684\u6fc0\u53d1\u5149\u8c31\u3002<\/p>\n (b)<\/strong> CYHA:0.03Ce3+<\/sup>,x<\/em>Tb3+<\/sup>\u8367\u5149\u7c89\u7684\u6fc0\u53d1\u5f3a\u5ea6\u968fTb3+<\/sup>\u63ba\u6742\u6d53\u5ea6\u7684\u53d8\u5316\u3002<\/p>\n (c) <\/strong>CYHA:0.03Ce3+<\/sup>,x<\/em>Tb3+<\/sup>\u8367\u5149\u7c89\u7684\u53d1\u5c04\u5149\u8c31\u3002<\/p>\n (d)<\/strong> Ce3+<\/sup>\u2192Tb3+<\/sup>\u80fd\u91cf\u4f20\u9012\u6548\u7387\u4e0eTb3+<\/sup>\u79bb\u5b50\u63ba\u6742\u6d53\u5ea6\u5173\u7cfb\u56fe\u3002<\/p>\n (e) <\/strong>Ce3+<\/sup>\u79bb\u5b50\u7684IS<\/sub><\/em>0<\/sub>\/IS<\/sub><\/em>\u4e0eC6\/3<\/sup>\u3001C8\/3<\/sup>\u548cC10\/3<\/sup>\u7684\u5173\u7cfb\u56fe\u3002<\/p>\n (f) <\/strong>Ce3+<\/sup>\u2192Tb3+<\/sup>\u80fd\u91cf\u4f20\u9012\u8fc7\u7a0b\u793a\u610f\u56fe\u3002<\/p>\n (g)<\/strong> CYHA:0.03Ce3+<\/sup>,x<\/em>Tb3+<\/sup>\u8367\u5149\u7c89\u7684CIE\u8272\u5ea6\u56fe\u3002<\/p>\n \u56fe\u4e94\u3001<\/strong>CYHA:0.03Ce3+<\/sup>,0.6Tb3+<\/sup><\/strong>\u4e0e<\/strong>CYHA:0.6Tb3+<\/sup><\/strong>\u8367\u5149\u7c89\u7684\u53d1\u5149\u5bf9\u6bd4<\/strong><\/p>\n (a)<\/strong> CYHA:0.03Ce3+<\/sup>,0.6Tb3+<\/sup>\u4e0eCYHA:0.6Tb3+<\/sup>\u8367\u5149\u7c89\u7684\u53d1\u5c04\u5149\u8c31\u5bf9\u6bd4\u56fe\u3002<\/p>\n (b) <\/strong>CYHA:0.03Ce3+<\/sup>,0.6Tb3+<\/sup>\u4e0eCYHA:0.6Tb3+<\/sup>\u8367\u5149\u7c89\u7684CIE\u8272\u5ea6\u56fe\u3002<\/p>\n (c)<\/strong> CYHA:0.6Tb3+<\/sup>\u8367\u5149\u7c89\u7684\u91cf\u5b50\u6548\u7387\u3002<\/p>\n (d) <\/strong>CYHA:0.03Ce3+<\/sup>,0.6Tb3+<\/sup>\u8367\u5149\u7c89\u7684\u91cf\u5b50\u6548\u7387\u3002<\/p>\n \u56fe\u516d\u3001<\/strong>CYHA:0.03Ce3+<\/sup>,0.6Tb3+<\/sup><\/strong>\u4e0e<\/strong>(Ba,Sr)2<\/sub>SiO4<\/sub>:Eu2+<\/sup><\/strong>\u7684\u53d1\u5149\u5bf9\u6bd4<\/strong><\/p>\n (a)<\/strong> CYHA:0.03Ce3+<\/sup>,0.6Tb3+<\/sup>\u548c\u5546\u7528(Ba,Sr)2<\/sub>SiO4<\/sub>:Eu2+<\/sup>\u7eff\u8272\u8367\u5149\u7c89\u7684\u53d1\u5c04\u5149\u8c31\u3002<\/p>\n (b)<\/strong> CYHA:0.03Ce3+<\/sup>,0.6Tb3+<\/sup>\u4e0e(Ba,Sr)2<\/sub>SiO4<\/sub>:Eu2+<\/sup>\u7684\u6700\u4f73\u53d1\u5c04\u5cf0\u7684\u5f3a\u5ea6\u5bf9\u6bd4\u3002<\/p>\n \u56fe\u4e03\u3001\u57fa\u4e8e<\/strong>CYHA:0.03Ce3+<\/sup>,0.6Tb3+<\/sup><\/strong>\u8367\u5149\u7c89\u5c01\u88c5\u7684\u767d\u5149<\/strong>LED<\/strong>\u5668\u4ef6<\/strong><\/p>\n (a) <\/strong>\u767d\u5149LED\u5728120 mA\u7535\u6d41\u4e0b\u7684\u53d1\u5c04\u5149\u8c31\u3002<\/p>\n (b)<\/strong> \u4e0d\u540c\u7535\u6d41\u9a71\u52a8\u4e0b\u767d\u5149LED\u706f\u7684\u53d1\u5c04\u5149\u8c31\u3002<\/p>\n (c)<\/strong> \u4e0d\u540c\u7535\u6d41\u9a71\u52a8\u4e0b\u767d\u5149LED\u7684CIE\u8272\u5ea6\u56fe\u3002<\/p>\n \u56fe\u516b\u3001<\/strong>\u767d\u5149<\/strong>LED<\/strong>\u5668\u4ef6\u7684\u5149\u7535\u6027\u80fd\u5bf9\u6bd4\u56fe<\/strong><\/p>\n (a) <\/strong>\u7528(Ba,Sr)2<\/sub>SiO4<\/sub>:Eu2+<\/sup>\u5546\u7528\u7eff\u8272\u8367\u5149\u7c89\u5236\u5907\u7684LED\u5668\u4ef6\u572860 mA\u7535\u6d41\u4e0b\u7684\u53d1\u5c04\u5149\u8c31\u3002<\/p>\n (b)<\/strong> \u7528CYHA:0.03Ce3+<\/sup>,0.6Tb3+<\/sup>\u7eff\u8272\u8367\u5149\u7c89\u5236\u5907\u7684LED\u5668\u4ef6\u572860 mA\u7535\u6d41\u4e0b\u7684\u53d1\u5c04\u5149\u8c31\u3002<\/p>\n (c) <\/strong>\u4e24\u4e2a\u767d\u5149LED\u7684CIE\u8272\u5ea6\u56fe\u3002<\/p>\n \u3010\u5c0f\u7ed3<\/strong>\u3011<\/strong><\/p>\n \u7efc\u4e0a\u6240\u8ff0\uff0c\u672c\u7814\u7a76\u62a5\u9053\u4e86\u4e00\u79cd\u8fd1\u7d2b\u5916\u5149\u6fc0\u53d1\u7684\u9ad8\u6548\u7eff\u8272CYHA:Ce3+<\/sup>,Tb3+<\/sup>\u8367\u5149\u7c89\uff0c\u5176\u5185\u91cf\u5b50\u6548\u7387\u9ad8\u8fbe78.5%\uff0c\u5916\u91cf\u5b50\u6548\u7387\u9ad8\u8fbe56%\u3002\u5229\u7528\u8be5\u7eff\u8272\u8367\u5149\u7c89\u5236\u5f97\u4e86\u663e\u8272\u6307\u6570\u9ad8\u8fbe92.6\u7684\u6696\u767d\u5149LED\u5668\u4ef6\uff0c\u5176\u663e\u8272\u6027\u80fd\u4f18\u4e8e\u5546\u7528(Ba,Sr)2<\/sub>SiO4<\/sub>:Eu2+<\/sup>\u7eff\u8272\u8367\u5149\u7c89\u3002\u8be5\u7814\u7a76\u4e3a\u5f00\u53d1\u9ad8\u6548LED\u7eff\u8272\u8367\u5149\u6750\u6599\u63d0\u4f9b\u4e86\u65b0\u7684\u7b56\u7565\u3002<\/p>\n
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