不同退火温度下&alpha;-NaYF4:Eu3+红色荧光粉的合成与发光特性

桂卫军; 王梓; 陈楠; 杜国平; 刘三秋

doi:10.3788/fgxb20153605.0502

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不同退火温度下α-NaYF₄:Eu³⁺红色荧光粉的合成与发光特性

材料合成及性能 | 更新时间：2020-08-12

- 不同退火温度下α-NaYF₄:Eu³⁺红色荧光粉的合成与发光特性
- Synthesis and Luminescence Properties of α-NaYF₄:Eu³⁺ Red Phosphors Under Different Annealing Temperature
- 发光学报 2015年36卷第5期页码：502-507
- 作者机构：
  
  1. 南昌大学材料科学与工程学院,江西南昌,330031
  2. 南昌工程学院理学院,江西南昌,330099
- 作者简介：
- 基金信息：
  
  国家(级)国际科技合作项目(S2014ZR0016)资助()
- DOI：10.3788/fgxb20153605.0502
  中图分类号： O482.31
- 纸质出版日期：2015-5-3，
  
  网络出版日期：2015-4-2，
  
  收稿日期：2014-12-14，
  
  修回日期：2015-3-7，
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桂卫军, 王梓, 陈楠等. 不同退火温度下α-NaYF4:Eu3+红色荧光粉的合成与发光特性[J]. 发光学报, 2015,36(5): 502-507

GUI Wei-jun, WANG Zi, CHEN Nan etc. Synthesis and Luminescence Properties of α-NaYF4:Eu3+ Red Phosphors Under Different Annealing Temperature[J]. Chinese Journal of Luminescence, 2015,36(5): 502-507
桂卫军, 王梓, 陈楠等. 不同退火温度下α-NaYF4:Eu3+红色荧光粉的合成与发光特性[J]. 发光学报, 2015,36(5): 502-507 DOI： 10.3788/fgxb20153605.0502.

GUI Wei-jun, WANG Zi, CHEN Nan etc. Synthesis and Luminescence Properties of α-NaYF4:Eu3+ Red Phosphors Under Different Annealing Temperature[J]. Chinese Journal of Luminescence, 2015,36(5): 502-507 DOI： 10.3788/fgxb20153605.0502.

摘要

采用溶剂热法合成了-NaYF

:5%Eu

红色荧光粉

研究不同退火温度对荧光粉晶体结构、形貌、发光以及显色性能 (CIE)的影响。通过比较退火前后以及不同退火温度下荧光粉的发光性能

发现退火使得禁戒跃迁

发生

随着退火温度的升高

所有发射峰都得到了相应的增强

并且相应的CIE更趋向于红色;但在高温退火时

纳米晶之间的团聚更加严重

而且CIE趋向于红色的速度变慢。基于非对称性比率

的分析

认为本文中

跃迁是由于Eu

占据非对称中心格位所致。

Abstract

-NaYF

:5%Eu

red phosphors were prepared by the solvothermal method. The crystal structure

morphology

luminescence properties and the chromaticity coordinates(CIE) were discussed under different annealing temperature

and three samples of them were coated with SiO

before annealed in air. It is found that the forbidden

transition emerges after annealing treatment

and all the characteristic emission peaks of Eu

are enhanced with the increasing of annealing temperature

correspondingly the CIE turns to red. But the nanoparticles reunite each other under high annealing temperature

and the tendency of CIE turning to red is slower. Based on the results of asymmetric ratio

we consider the appearance of

transition is from Eu

deviating from the inversion symmetry center.

关键词

溶剂热法&alpha-NaYF4纳米荧光粉退火发光

Keywords

solvothermal method&alpha-NaYF4 nanocrystalannealingluminescence

references

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不同退火温度下α-NaYF4:Eu3+红色荧光粉的合成与发光特性

Synthesis and Luminescence Properties of α-NaYF4:Eu3+ Red Phosphors Under Different Annealing Temperature

DOI：10.3788/fgxb20153605.0502

摘要

Abstract

关键词

Keywords

references

不同退火温度下α-NaYF₄:Eu³⁺红色荧光粉的合成与发光特性

Synthesis and Luminescence Properties of α-NaYF₄:Eu³⁺ Red Phosphors Under Different Annealing Temperature