Co-precipitation Synthesis and Luminescence Properties of (Y1-x-y,Gdy)2O3∶xEu3+ Red Phosphors

PU Yong; ZHU Da-chuan; MA Ming-xing; HAN Tao; ZHAO Cong

doi:10.3788/fgxb20123303.0247

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Co-precipitation Synthesis and Luminescence Properties of (Y_1-x-y,Gd_y)₂O₃∶xEu³⁺ Red Phosphors

paper | 更新时间：2020-08-12

- Co-precipitation Synthesis and Luminescence Properties of (Y_1-x-y,Gd_y)₂O₃∶xEu³⁺ Red Phosphors
- Chinese Journal of Luminescence Vol. 33, Issue 3, Pages: 247-252(2012)
- 作者机构：
  
  1. 四川大学材料科学与工程学院,四川成都,610065
  2. 重庆文理学院材料交叉学科研究中心重庆市高校微纳米材料工程与技术重点实验室重庆,402168
- 作者简介：
- 基金信息：
- DOI：10.3788/fgxb20123303.0247
  CLC： O482.31
- Received：06 December 2011，
  
  Revised：05 January 2012，
  
  Published Online：10 March 2012，
  
  Published：10 March 2012
- 稿件说明：
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蒲勇, 朱达川, 马明星, 韩涛, 赵聪. 化学共沉淀法制备的(Y1-x-y,Gdy)2O3∶xEu3+红色荧光粉及其发光性能[J]. 发光学报, 2012,33(3): 247-252

PU Yong, ZHU Da-chuan, MA Ming-xing, HAN Tao, ZHAO Cong. Co-precipitation Synthesis and Luminescence Properties of (Y1-x-y,Gdy)2O3∶xEu3+ Red Phosphors[J]. Chinese Journal of Luminescence, 2012,33(3): 247-252
蒲勇, 朱达川, 马明星, 韩涛, 赵聪. 化学共沉淀法制备的(Y1-x-y,Gdy)2O3∶xEu3+红色荧光粉及其发光性能[J]. 发光学报, 2012,33(3): 247-252 DOI： 10.3788/fgxb20123303.0247.

PU Yong, ZHU Da-chuan, MA Ming-xing, HAN Tao, ZHAO Cong. Co-precipitation Synthesis and Luminescence Properties of (Y1-x-y,Gdy)2O3∶xEu3+ Red Phosphors[J]. Chinese Journal of Luminescence, 2012,33(3): 247-252 DOI： 10.3788/fgxb20123303.0247.

摘要

用化学共沉淀法一次煅烧工艺合成了 (Y

x-y

)

∶

(

x=0.06~0.10

0.20~0.25)系列红色荧光粉。用XRD、SEM和荧光分光光度计

对试样的晶体结构、表面形貌及发光性能进行表征。研究了Eu

、Gd

的掺杂浓度、表面活性剂的加入、煅烧温度对样品性能的影响。结果表明:样品为立方晶系;Gd

的加入会使基体晶格发生畸变

晶胞参数增加

起到改善样品色纯度和发光效率的作用;最佳煅烧温度为900 ℃

比传统的高温固相法低500 ℃左右;所合成荧光粉的粒度主要分布在300~400 nm

结构比较松散;当

x=0.08

=0.23时

最大发射峰(

=613 nm)强度最大。所合成的(Y

x-y

)

∶

荧光粉是一种性能较好的PDP用红色荧光粉。

Abstract

A series of (Y

x-y

)

∶

(

x=0.06~0.10

0.20~0.25) red phosphors have been synthesized by co-precipitation synthesis. The crystal structure

surface morphology and spectral characteristics of the samples were investigated by X-ray diffraction (XRD)

SEM and fluorescence spectrophotometer. The effects of doping density of Eu

and Gd

the calcining temperature and the addition of surfactant on the characteristics of luminescence have also been investigated. It is found that the synthesized crystalline powders are cubic system. The introduction of Gd

would make the crystal structure distorted and aggrandize the cell parameters

which may improve samples' color purity and luminous efficiency. The completely crystallized phosphors were obtained at 900 ℃

which is nearly 500 ℃ lower than the temperature of solid-state method. The particle size of the samples is loose

and their sizes are ranging from 300 to 400 nm. The optimum emission intensity of 613 nm is obtained when the

=0.08

=0.23. Therefore

it suggests that the sample phosphors have a good spectral characteristics and can be used as PDP red phosphors.

关键词

Keywords

references

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