Preparation and Properties of Red Emitting Phosphor Gd2Mo3O9：Eu3+for White LEDs

ZHANG Guo-you; ZHAO Xiao-xia; MENG Qing-yu; WANG Xiao-jun

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Preparation and Properties of Red Emitting Phosphor Gd₂Mo₃O₉：Eu³⁺for White LEDs

更新时间：2020-08-11

- Preparation and Properties of Red Emitting Phosphor Gd₂Mo₃O₉：Eu³⁺for White LEDs
- Chinese Journal of Luminescence Vol. 28, Issue 1, Pages: 57-61(2007)
- 作者机构：
  
  1. 中国科学院, 激发态物理重点实验室,吉林长春,130033
  2. 中国科学院, 研究生院北京,100049
  3. 内蒙古民族大学, 物理系,内蒙古通辽,028043
- 作者简介：
- 基金信息：
- DOI：
  CLC： O482.31
- Received：12 June 2006，
  
  Revised：20 October 2006，
  
  Published：20 January 2007
- 稿件说明：
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张国有, 赵晓霞, 孟庆裕, 王晓君. 白光LED用红色荧光粉Gd2Mo3O9：Eu3+的制备及表征[J]. 发光学报, 2007,28(1): 57-61

ZHANG Guo-you, ZHAO Xiao-xia, MENG Qing-yu, WANG Xiao-jun. Preparation and Properties of Red Emitting Phosphor Gd2Mo3O9：Eu3+for White LEDs[J]. Chinese Journal of Luminescence, 2007,28(1): 57-61
张国有, 赵晓霞, 孟庆裕, 王晓君. 白光LED用红色荧光粉Gd2Mo3O9：Eu3+的制备及表征[J]. 发光学报, 2007,28(1): 57-61 DOI：

ZHANG Guo-you, ZHAO Xiao-xia, MENG Qing-yu, WANG Xiao-jun. Preparation and Properties of Red Emitting Phosphor Gd2Mo3O9：Eu3+for White LEDs[J]. Chinese Journal of Luminescence, 2007,28(1): 57-61 DOI：

摘要

利用Na

作为助熔剂

采用高温固相反应方法制备了三价铕离子激活的Gd

红色荧光粉。利用XRD和荧光光谱

研究了助熔剂的量、制备时的温度以及激活剂Eu

的浓度对荧光粉的晶体结构和发光性能的影响。测试结果表明

这种新型的荧光粉可以被紫外光280nm

近紫外光395nm和蓝光465nm有效激发

发射主峰位于613nm

并且证明Eu

离子在晶体结构中占据了非反演对称中心的位置。395

465nm的吸收与目前广泛应用的紫外和蓝光LED芯片的输出波长相匹配。因此

这种荧光粉是一种可能应用在白光LED上的红色荧光粉材料。

Abstract

-doped Gd

was prepared by solid-state reaction route using Na

as flux and characterized by powder X-ray diffraction.According to X-ray diffraction

this material is belongs to tetragonal system.The effects of flux content and sintering temperature on the luminescent properties were investigated by emission and excitation spectra.The results showed that flux content and sintering temperature have impact effects on the luminescent properties

the optimized flux content and the best sintering temperature is 3% and 800℃

respectively.The excitation and emission spectra also show that this phosphor can be effectively excited by C-T band(280nm)

ultraviolet light 395nm and blue light 465nm.The wavelengths at 395nm and 465nm are nicely fitting in with the widely applied emission wavelengths of ultraviolet or blue LED chips.Integrated emission intensity of Gd

:Eu is 2 times stronger than that of Y

S:Eu

under 395nm excitation.The Eu

doped Gd

phosphor may be a better phosphor candidate for solid-state lighting applications.

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