掺杂的Bi4Ge3O12晶体的近红外发光性能

俞平胜; 苏良碧; 徐军

doi:10.3788/fgxb20153603.0283

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掺杂的Bi₄Ge₃O₁₂晶体的近红外发光性能

材料合成及性能 | 更新时间：2020-08-12

- 掺杂的Bi₄Ge₃O₁₂晶体的近红外发光性能
- Near-infrared Luminescence in Doped Bi₄Ge₃O₁₂Crystals
- 发光学报 2015年36卷第3期页码：283-287
- 作者机构：
  
  1. 盐城工学院材料工程学院,江苏盐城,224051
  2. 中国科学院上海硅酸盐研究所透明与光功能无机材料重点实验室上海,201800
- 作者简介：
- 基金信息：
  
  国家自然科学基金(61078053)();江苏省自然科学基金(BK20141263)资助项目()
- DOI：10.3788/fgxb20153603.0283
  中图分类号： O482.31
- 纸质出版日期：2015-3-3，
  
  网络出版日期：2014-12-31，
  
  收稿日期：2014-11-27，
  
  修回日期：2015-1-6，
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俞平胜, 苏良碧, 徐军. 掺杂的Bi4Ge3O12晶体的近红外发光性能[J]. 发光学报, 2015,36(3): 283-287

YU Ping-sheng, SU Liang-bi, XU Jun. Near-infrared Luminescence in Doped Bi4Ge3O12 Crystals[J]. Chinese Journal of Luminescence, 2015,36(3): 283-287
俞平胜, 苏良碧, 徐军. 掺杂的Bi4Ge3O12晶体的近红外发光性能[J]. 发光学报, 2015,36(3): 283-287 DOI： 10.3788/fgxb20153603.0283.

YU Ping-sheng, SU Liang-bi, XU Jun. Near-infrared Luminescence in Doped Bi4Ge3O12 Crystals[J]. Chinese Journal of Luminescence, 2015,36(3): 283-287 DOI： 10.3788/fgxb20153603.0283.

摘要

生长了Mg、Ca离子掺杂(提拉法)和Cl离子掺杂(坩埚下降法)的Bi

(BGO)晶体

测试了晶体样品的吸收谱、光致发光谱和发光衰减时间等。这些掺杂的BGO晶体的可见光发光比纯BGO有所减弱

但在808 nm和980 nm激光二极管(LD)激发下出现了纯BGO几乎没有的近红外发光

归因于改变了能级的Bi离子或可能出现的低价态Bi离子。掺杂对近红外发光的影响跟掺杂离子价态有关

同价态的掺杂离子对近红外发光的影响相差不大。

Abstract

Mg and Ca doped Bi

(BGO) crystals were grown by using Czochralski (Cz) technique

and Cl doped BGO crystal was prepared by Vertical Bridgman (VB) method. The absorption

photoluminescence (PL) and PL lifetime spectra were systematically investigated. The results reveal that the emission intensity of these doped BGO is weaker than that of pure BGO in visible region. Near infrared (NIR) emission is observed in doped BGO under 808 nm and/or 980 nm laser diodes (LDs) excitation

and the NIR emission should be ascribed to a changed Bi-related active center or lower valence Bi ions. The valence state of doped ions could be key to achieving the NIR emission in BGO crystals

and the doped ions with same valence could play the similar roles in our experiments.

关键词

Bi4Ge3O12光致发光近红外

Keywords

Bi4Ge3O12photoluminescencenear infrared

references

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