高性能Sr2-xBaxSiO4 : Eu2+ 荧光材料的合成及发光

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高性能Sr_2-xBa_xSiO₄ : Eu²⁺ 荧光材料的合成及发光

paper | 更新时间：2020-08-12

- 高性能Sr_2-xBa_xSiO₄ : Eu²⁺ 荧光材料的合成及发光
- Chinese Journal of Luminescence Vol. 30, Issue 5, Pages: 617-623(2009)
- 作者机构：
  
  大连路明发光科技股份有限公司
- 作者简介：
- 基金信息：
- DOI：
  CLC： O482.31
- Received：10 December 2008，
  
  Revised：1900-1-2，
  
  Online First：30 October 2009，
  
  Published：30 October 2009
- 稿件说明：
移动端阅览
[J]. Chinese Journal of Luminescence, 2009, 30(5): 617-623.
DOI：

[J]. Chinese Journal of Luminescence, 2009, 30(5): 617-623. DOI：

摘要

研究了Sr

2-x

SiO

: Eu

荧光材料作为白光LED发光体的可行性和应用特性。采用高温固相法制备了Sr

2-x

SiO

: Eu

材料系列样品

对样品的成分配比、阴离子掺杂、合成温度和时间进行了系统实验

利用XRD、SEM、光谱测试及封装测试等手段对样品的组成、结构、形貌特征及应用性能进行了表征。研究表明Sr

2-x

SiO

: Eu

荧光材料具有激发范围宽(300~500 nm)、发射范围宽(500~600 nm)的特点。通过控制碱土金属的比例可以精确控制材料的发射波长

在Ba掺杂范围0≤x

0.5内可以获得550~560 nm的发射

与YAG材料相比在光谱上增加了红色成分。通过引入恰当助熔成分进行阴离子掺杂

精确控制烧结工艺等手段极大提高了550~560 nm发射的发光强度和光转换效率。封装应用和测试证明

本研究优化制备的高性能Sr

2-x

SiO

∶ Eu

荧光材料的光转换效率普遍可达到YAG材料的95％

在显色指数、色温和色纯度方面也优于或相当于YAG材料

并且具有较好的芯片适应性和较多的红色成分

是较为理想的应用于白光LED的荧光材料

特别适合于暖白光LED的制备。

Abstract

paper

关键词

Keywords

references

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