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	氮化镓发光二级管蓝光转换材料的合成和发光性质; Synthesis and luminescence of gallium nitride LED blue light conversion materials
	姚光庆 ; 冯艳娥 ; 段洁菲 ; 林建华
	2003
关键词	氮化镓发光二极管(LED) 蓝光转换材料 稀土石榴石 发光 蓝移 红移 位形坐标 gallium nitride LED (light emitting dicde) blue light conversion materials rare earth garnet luminescence blue shift red shift configuration coordination
英文摘要	合成了Ce3+掺杂的稀土石榴石结构复合氧化物体系(Y1-xGdx)3Al5O12、(Y1-xLux)3Al5O12、(Y1-xLax)3Al5O12、(Y1-xYbx)3Al5O12和(Y1-xTbx)3Al5O12.重点研究了(Y1-xGdx)3Al5O12:Ce3+和(Y1-xLux)3Al5O12:Ce3+两个体系的晶体结构和发光性质.这些体系都具有立方石榴石结构.(Y1-xGdx)3Al5O12:Ce3+体系随Gd取代Y,晶胞参数略有增加.荧光光谱的发射波长随Gd浓度增加发生红移,当x=0.5时发射波长达到最大值(560nm),并不再随Gd含量增加而变化.(Y1-xLux)3Al5O1...; A series of rare earth complex oxides, i. e. (Y1-xGdx)(3)Al5O12: Ce3+, (Y1-x,Lu-x)(3)Al5O12: Ce3+, (Y1-x La-x)(3)Al5O12: Ce3+, (Y1- xYbx)(3)Al5O12: Ce(3+)and (Y1 - xTbx)(3)Al5O12: Ce3+, have been prepared, and their luminescent properties were studied. Particular attention was paid to (Y1 - xGdx) 3Al5O12: Ce3+ and (Y1 - x,Lu-x)(3)Al5O12: Ce3+ systems because of their promising luminescent properties. X-ray powder diffraction patterns show that both systems have garnet structure, and the lattice constants vary smoothly with the compositions. The emission spectra of Ce3+ in both systems are a broad band located at about 540 run. The emission transition shows a red shift in (Y1-xGdx)(3)Al5O12:Ce3+ system, and a blue shift also observed in (Y1-xLux)(3)Al5O12: Ce(3+)system. This phenomenon could be interpreted with the configuration coordination model. The shift of the emission spectra in these systems provides the new option to improve the performance of white LED device.; http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000181749700008&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701 ; SCI(E); 中文核心期刊要目总览(PKU); 中国科技核心期刊(ISTIC); 中国科学引文数据库(CSCD); 7; 03; 226-229; 19
语种	中文
出处	万方 ; 知网 ; SCI
出版者	物理化学学报
内容类型	其他
源URL	[http://hdl.handle.net/20.500.11897/80665]
专题	化学与分子工程学院
推荐引用方式 GB/T 7714	姚光庆,冯艳娥,段洁菲,等. 氮化镓发光二级管蓝光转换材料的合成和发光性质, Synthesis and luminescence of gallium nitride LED blue light conversion materials. 2003-01-01.

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