Effects of Fluxes on Preparation and Luminescent Properties of Sr0.97Si2N2O2：0.03Eu2+ Phosphor

LI Bin; MENG Xiao-kang; FENG Shan; YAN Wei; SUN Xia-wei; TAN Jin

doi:10.3788/fgxb20143504.0425

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Effects of Fluxes on Preparation and Luminescent Properties of Sr_0.97Si₂N₂O₂：0.03Eu²⁺ Phosphor

更新时间：2020-08-12

- Effects of Fluxes on Preparation and Luminescent Properties of Sr_0.97Si₂N₂O₂：0.03Eu²⁺ Phosphor
- Chinese Journal of Luminescence Vol. 35, Issue 4, Pages: 425-430(2014)
- 作者机构：
  
  中国地质大学(武汉) 材料科学与化学工程学院,湖北武汉,430074
- 作者简介：
- 基金信息：
- DOI：10.3788/fgxb20143504.0425
  CLC： O482.31
- Received：16 December 2013，
  
  Revised：13 January 2014，
  
  Published Online：24 January 2014，
  
  Published：03 April 2014
- 稿件说明：
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李斌, 孟小康, 冯珊等. 助熔剂对Sr0.97Si2N2O2：0.03Eu2+荧光粉制备及发光性能的影响[J]. 发光学报, 2014,35(4): 425-430

LI Bin, MENG Xiao-kang, FENG Shan etc. Effects of Fluxes on Preparation and Luminescent Properties of Sr0.97Si2N2O2：0.03Eu2+ Phosphor[J]. Chinese Journal of Luminescence, 2014,35(4): 425-430
李斌, 孟小康, 冯珊等. 助熔剂对Sr0.97Si2N2O2：0.03Eu2+荧光粉制备及发光性能的影响[J]. 发光学报, 2014,35(4): 425-430 DOI： 10.3788/fgxb20143504.0425.

LI Bin, MENG Xiao-kang, FENG Shan etc. Effects of Fluxes on Preparation and Luminescent Properties of Sr0.97Si2N2O2：0.03Eu2+ Phosphor[J]. Chinese Journal of Luminescence, 2014,35(4): 425-430 DOI： 10.3788/fgxb20143504.0425.

摘要

在N

气氛下，以Si

、SrCO

和Eu

为原料，采用自还原高温固相合成法制备了Sr

0.97

：0.03Eu

荧光粉。在近紫外光激发下，该荧光粉发出明亮的黄绿光，发射峰位于533 nm处。采用XRD分析了不同助熔剂（NH

F，NH

Cl，Li

，H

）条件下的荧光粉晶相发育情况。通过SEM和荧光光谱研究了不同助熔剂对Sr

0.97

：0.03Eu

晶粒形貌及发光性能的影响。结果表明，随着助熔剂的添加，荧光粉团聚现象缓解、结晶度增强、分散性提高，且不同程度地提高了荧光粉的发光强度，其中以NH

Cl的添加效果最佳。

Abstract

0.97

:0.03Eu

phosphors were prepared by conventional high temperature solid-state reaction using Si

SrCO

and Eu

as the raw materials. Excited by near-ultraviolet

the phosphors emit bright yellowish-green light and the peak of the emission spectra is at 533 nm. The crystalline phase formations of the phosphors with different fluxes(NH

) were analyzed by X-ray diffraction (XRD). The effects of the fluxes on the morphology and luminescent properties of the phosphors were also investigated by scanning electron microscope (SEM) and fluorescence spectrometer

respectively. With the introduction of the fluxes

the agglomeration of the phosphors is relieved significantly

the crystallinity is increased

and the emission intensity is enhanced. For all the fluxes

Cl has the greatest effect on the emission intensity of the phosphors.

关键词

Keywords

references

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