Optimal Doping Content of Red Emitting Y4GeO8∶Bi3+,Eu3+ Phosphor Designed by Response Surface Methodology

Shu-jun XU; Jing CHEN; Li-yuan CHEN; Ghulam-Abbas ASHRAF; Hui-jun LI; Hai GUO

doi:10.37188/CJL.20220021

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Optimal Doping Content of Red Emitting Y₄GeO₈∶Bi³⁺,Eu³⁺ Phosphor Designed by Response Surface Methodology

Cover Story | 更新时间：2022-05-23

- Optimal Doping Content of Red Emitting Y₄GeO₈∶Bi³⁺,Eu³⁺ Phosphor Designed by Response Surface Methodology
  增强出版
- 发光学报 Vol. 43, Issue 5, Pages: 633-641(2022)
- 作者机构：
  
  浙江师范大学　物理系,　浙江　金华　321004
- 作者简介：
  
  [ "徐淑君(1997-)，女，安徽池州人，硕士研究生，2020年于安庆师范大学获得学士学位，主要从事稀土离子掺杂荧光粉的制备与发光性能的研究。E-mail: 2838110096@qq.com" ]
  [ "郭海(1980-)，男，江西吉水人，博士，教授，博士生导师，2005年于中国科学技术大学获得博士学位，主要从事新型稀土光学功能材料的研究。E-mail: ghh@zjnu.cn" ]
- 基金信息：
  
  国家自然科学基金(11974315)
- DOI：10.37188/CJL.20220021
  CLC： O482.31
- Published：2022-05，
  
  Received：17 January 2022，
  
  Revised：07 February 2022，
- 稿件说明：
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SHU-JUN XU, JING CHEN, LI-YUAN CHEN, et al. Optimal Doping Content of Red Emitting Y₄GeO₈∶Bi³⁺,Eu³⁺ Phosphor Designed by Response Surface Methodology. [J]. 发光学报, 2022, 43(5): 633-641.
DOI：

SHU-JUN XU, JING CHEN, LI-YUAN CHEN, et al. Optimal Doping Content of Red Emitting Y₄GeO₈∶Bi³⁺,Eu³⁺ Phosphor Designed by Response Surface Methodology. [J]. 发光学报, 2022, 43(5): 633-641. DOI： 10.37188/CJL.20220021.

摘要

使用更直接的方法（效应面优化模型）预测了Y

GeO

∶Bi

，Eu

样品的最强红光发射。预测最佳样品掺杂的Bi

离子和Eu

离子浓度分别为31.03%和67.36%（摩尔分数）。制备最佳样品后对其光致发光性能进行了测试和表征。荧光粉Y

GeO

∶31.03%Bi

，67.36%Eu

具有最强的红光发射，并且强度的实验值和理论值之间的差值很小。优化样品的色坐标为（0.645 7，0.349 0），计算出的色纯度为98%，内量子效率高达72.5%。本文提供了一种直接寻找发光最强的荧光粉最佳掺杂浓度的方法，可用于探索各种类型的共掺杂荧光粉。

Abstract

Herein

a more direct method

response surface methodology

is used to predict the strongest red emission of Y

GeO

∶Bi

samples. The concentrations of Bi

and Eu

of the optimal sample were predicted to be 31.03% and 67.36%(in mole ratio)

respectively. The optimal sample was prepared and photoluminescent properties were measured and characterized. Y

GeO

∶31.03%Bi

67.36%Eu

has strongest red emission. The difference between the intensity of experimental value and theoretical value is very small. The color coordinate of the as-prepared sample is (0.645 7

0.349 0)

which is very close to the color coordinate of standard red light (0.670 0

0.330 0). The luminous color of the sample is pure

and the calculated color purity reaches 98%. What’s more

the internal quantum efficiency of the sample is as high as 72.5%. In a word

this paper provides an approach for searching the optimal doping concentration of phosphors with the strongest luminescence directly

which can be used in exploring all types of co-doped phosphors.

关键词

Y4GeO8∶Bi3+Eu3+荧光粉效应面优化模型发光强度

Keywords

Y4GeO8∶Bi3+Eu3+ phosphorsresponse surface methodologyluminescent intensity

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Shu-jun XU

Jing CHEN

Li-yuan CHEN

Ghulam-Abbas ASHRAF

Hui-jun LI

Hai GUO

Related Institution

Department of Physics， Zhejiang Normal University

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