Optical Properties of Ce3+, Tb3+ Co-doped BaYF5 Glass Ceramics

JIANG Qing-yun; LI Chen-xia; YE Reng-guang; HUA You-jie; XU Shi-qing

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Optical Properties of Ce³⁺, Tb³⁺ Co-doped BaYF₅ Glass Ceramics

paper | 更新时间：2020-08-12

- Optical Properties of Ce³⁺, Tb³⁺ Co-doped BaYF₅ Glass Ceramics
- Chinese Journal of Luminescence Vol. 32, Issue 10, Pages: 1030-1035(2011)
- 作者机构：
  
  1. 中国计量学院光学与电子科技学院,浙江杭州,310018
  2. 中国计量学院材料科学与工程学院,浙江杭州,310018
- 作者简介：
- 基金信息：
- DOI：
  CLC： O482.31
- Received：07 June 2011，
  
  Revised：2011-7-11，
  
  Published Online：22 October 2011，
  
  Published：22 October 2011
- 稿件说明：
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江青云, 李晨霞, 叶仁广, 华有杰, 徐时清. Ce3+ ,Tb3+共掺BaYF5微晶玻璃的光学特性[J]. 发光学报, 2011,32(10): 1030-1035

JIANG Qing-yun, LI Chen-xia, YE Reng-guang, HUA You-jie, XU Shi-qing. Optical Properties of Ce3+, Tb3+ Co-doped BaYF5 Glass Ceramics[J]. Chinese Journal of Luminescence, 2011,32(10): 1030-1035
江青云, 李晨霞, 叶仁广, 华有杰, 徐时清. Ce3+ ,Tb3+共掺BaYF5微晶玻璃的光学特性[J]. 发光学报, 2011,32(10): 1030-1035 DOI：

JIANG Qing-yun, LI Chen-xia, YE Reng-guang, HUA You-jie, XU Shi-qing. Optical Properties of Ce3+, Tb3+ Co-doped BaYF5 Glass Ceramics[J]. Chinese Journal of Luminescence, 2011,32(10): 1030-1035 DOI：

摘要

采用高温熔融法制备了一种新型的Ce

/Tb

共掺BaYF

微晶玻璃。测试了微晶玻璃的X射线衍射图(XRD)谱、激发光谱和发射光谱。研究发现:660 ℃热处理2 h后的玻璃基质中析出BaYF

纳米晶相

根据XRD结果用Scherrer 公式计算得到晶粒大小约为27 nm;在近紫外光(338 nm)激发下

观察到BaYF

微晶玻璃宽带蓝光(425 nm)发光对应Ce

的5d

5/2

和5d

7/2

能级跃迁

蓝光(487 nm)、绿光(541 nm)、橙光(582 nm)和红光(620 nm)发光对应于Tb

的

(

3)能级跃迁。通过调节Ce

和Tb

的掺杂浓度

得到色坐标为(0.287

0.336)的白光发光微晶玻璃

并系统分析了Ce

和Tb

离子的发光机理和能量传递过程。研究结果表明:Ce

／Tb

共掺的BaYF

微晶玻璃是制作白光LED的一种潜在基质材料。

Abstract

A new Ce

/Tb

co-doped BaYF

glass ceramic was prepared by high temperature melting. The X-ray diffraction spectra

excitation spectra and emission spectra were measured. The results indicate the BaYF

nanocrystalline phase exists in the glass matrix. Based on the Scherrer equation

the average size about 27 nm of BaYF

nanocrystalline was calculated. The intense blue emission band(425 nm)assigned to 5d

5/2

and 5d

7/2

transitions of Ce

and blue emission(487 nm)

green emission (542 nm)

orange emission (582 nm) and red emission (620 nm) assigned to

(

3) transitions of Tb

ions

respectively

were observed at room temperature under 338 nm excitation in the glass ceramics. By adjusting the doped concentration of Ce

and Tb

the chromaticity coordinate of the glass ceramic is measured to be (0.287

0.336). The energy transfer between Ce

and Tb

was analysised systematically. The results indicate that Ce

/ Tb

co-doped BaYF

glass ceramics is a potential matrix material for white LED.

关键词

Keywords

references

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