荧光粉Ca4Y6O(SiO4)6∶Dy3+的制备与发光特性

杨志平; 马淑媛; 于红伟; 闻建伟; 刘玉峰; 李盼来

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荧光粉Ca₄Y₆O(SiO₄)₆∶Dy³⁺的制备与发光特性

特邀报告 | 更新时间：2020-08-12

- 荧光粉Ca₄Y₆O(SiO₄)₆∶Dy³⁺的制备与发光特性
- Synthesis and Luminescent Characteristics of Phosphor Ca₄ Y₆ O(SiO₄ )₆ ∶ Dy³⁺
- 发光学报 2011年32卷第2期页码：109-114
- 作者机构：
  
  1. 河北大学物理科学与技术学院发光与显示研究所,河北保定,071002
  2. 河北大学电子信息工程学院,河北保定,071002
- 作者简介：
- 基金信息：
  
  Project supported by Natural Science Foundation of China (50902042)();and Hebei Natu
- DOI：
  中图分类号： O482.31
- 收稿日期：2010-06-04，
  
  修回日期：2010-08-01，
  
  纸质出版日期：2011
- 稿件说明：
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杨志平, 马淑媛, 于红伟, 闻建伟, 刘玉峰, 李盼来. 荧光粉Ca4Y6O(SiO4)6∶Dy3+的制备与发光特性[J]. 发光学报, 2011,32(2): 109-114

YANG Zhi-ping, MA Shu-yuan, YU Hong-wei, WEN Jian-wei, LIU Yu-feng, LI Pan-lai. Synthesis and Luminescent Characteristics of Phosphor Ca4 Y6 O(SiO4 )6 ∶ Dy3+[J]. Chinese Journal of Luminescence, 2011,32(2): 109-114
杨志平, 马淑媛, 于红伟, 闻建伟, 刘玉峰, 李盼来. 荧光粉Ca4Y6O(SiO4)6∶Dy3+的制备与发光特性[J]. 发光学报, 2011,32(2): 109-114 DOI：

YANG Zhi-ping, MA Shu-yuan, YU Hong-wei, WEN Jian-wei, LIU Yu-feng, LI Pan-lai. Synthesis and Luminescent Characteristics of Phosphor Ca4 Y6 O(SiO4 )6 ∶ Dy3+[J]. Chinese Journal of Luminescence, 2011,32(2): 109-114 DOI：

摘要

采用高温固相法制备了Ca

O(SiO

)

∶ Dy

荧光材料

通过样品的XRD谱证明了Ca

O(SiO

)

∶ Dy

荧光材料是纯相的结构材料

通过发射光谱和激发光谱等发光特性的研究发现该荧光粉材料有多个发射峰

分别位于480 nm和573 nm处。监测蓝峰(480 nm)和黄峰(573 nm)

测得材料的激发谱均为多锐峰 (位于293

323

348

363

386

424

452 nm)

均属于Dy

的特征吸收峰

其中以348 nm的激发峰最强。探讨了Dy

的掺杂量对样品黄蓝峰发射强度比(

)、发光色坐标及色温的影响。分析了Dy

的浓度对荧光粉发光的影响及其浓度猝灭机理。

Abstract

The Ca

O(SiO

)

∶ Dy

phosphor was synthesized by high temperature solid state reaction

and the luminescent properties were investigated. The XRD patterns indicated that the phosphor of Ca

O(SiO

)

∶ Dy

was pure crystalline phase. The study on the luminescent properties showed that the phosphor exhibits two emission bands centering at 480 nm and 573 nm. The excitation spectra for blue emission (480 nm) and yellow emission (573 nm) both have several sharp peaks

locating at 293

323

348

363

386

424

452 nm

which are assigned to the typical transitions of Dy

. The strongest peak appears at 348 nm. The influence of the doped concentration of Dy

on the ratio of yellow to blue emission intensity (

)

with the emission color coordinates and color temperature of phosphor Ca

O(SiO

)

∶ Dy

were studied. The effect of Dy

concentration on the luminescence and the quen-ching mechanism according to the Dexter theory were also analyzed.

关键词

Keywords

references

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