| 白光LED用红色荧光粉α-Gd2（MoO4）3∶Eu的制备及其发光性能研究 |
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| 引用本文： | 赵晓霞,王晓君,陈宝玖,孟庆裕,颜斌,狄卫华.白光LED用红色荧光粉α-Gd2（MoO4）3∶Eu的制备及其发光性能研究[J].光谱学与光谱分析,2007,27(4):629-633. |
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| 作者姓名： | 赵晓霞 王晓君 陈宝玖 孟庆裕 颜斌 狄卫华 |
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| 作者单位： | [1]中国科学院长春光学精密机械与物理研究所激发态重点实验室,吉林长春130033 [2]中国科学院研究生院,北京100039 [3]大连海事大学物理系,辽宁大连116026 |
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| 基金项目： | 国家自然科学基金项目（50572102,50502131）; 吉林省自然科学基金项目（1999514,20030514-2）; 吉林省杰出青年基金项目（20040113）资助 |
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| 摘 要： | 以Gd2O3,MoO3,Eu2O3为原料,采用传统的高温固相反应方法制备了一种新的白光LED用红色荧光粉材料α相Gd2（MoO4）3∶Eu。利用XRD,SEM,激发和发射光谱对其进行了研究。分析了助熔剂和激活剂对样品的晶体结构,表面形貌和发光性能的影响。结果表明这种荧光粉可以被近紫外光（395nm）和蓝光（465nm）有效激发,发射峰值位于613nm（Eu^3＋离子的5^D0→7^F2跃迁）的红光,激发波长与目前广泛使用的蓝光和紫外光LED芯片相符合。因此,三价Eu离子激活的α相Gd2（MoO4）3是一种可能应用在白光LED上的红色荧光粉材料。
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| 关 键 词： | 红色荧光粉 Eu^3＋ 白光LED 助熔剂 |
| 文章编号： | 1000-0593（2007）04-0629-05 |
| 收稿时间： | 2005-12-21 |
| 修稿时间： | 2006-03-28 |
Preparation of alpha-Gd2 (MoO4)3 red emitting phosphor for white light emitting diodes and its luminescence study] |
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| ZHAO Xiao-xia, WANG Xiao-jun , CHEN Bao-jiu, MENG Qing-yu, YAN Bin, DI Wei-hua.Preparation of alpha-Gd2 (MoO4)3 red emitting phosphor for white light emitting diodes and its luminescence study][J].Spectroscopy and Spectral Analysis,2007,27(4):629-633. |
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| Authors: | ZHAO Xiao-xia WANG Xiao-jun CHEN Bao-jiu MENG Qing-yu YAN Bin DI Wei-hua |
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| Institution: | 1. Lab of Excited State Processes, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China 2. Graduate School of Chinese Academy of Sciences, Beijing 100039, China 3. Department of Physics, Dalian Maritime University, Dalian 116026, China |
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| Abstract: | A novel red phosphor alpha-Gd2 (MoO4)3: Eu was synthesized by conventional solid state reaction method with the starting materials: Gd2O3, MoO3 and Eu2O3. The effects of flux and Eu concentration on the crystal structure, morphology and luminescent properties of the phosphors were investigated. The results showed that non-agglomeration phosphors with regular morphology and fine size were produced after the mixture being calcined at 800 degrees C for 4h with 3% NH4F as flux. The main emission peak of the samples is at 613 nm. The excitation spectrum showed that this phosphor can be effectively excited by ultraviolet (UV) (395 nm) and blue (465 nm) light, nicely fitting in with the widely applied output wavelengths of ultraviolet or blue LED chips. The alpha-Gd2 (MoO4)3 phosphor may be a good candidate phosphor for solid state lighting application. |
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| Keywords: | Red emitting phosphor Eu3 White LED Flux |
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