无机材料学报

• 研究论文 • 上一篇    下一篇

钨酸铅晶体的发光光谱及辐照诱导色心的研究

曲向东1; 张立原2; 朱人元2; 廖晶莹1; 殷之文1   

  1. 1. 中国科学院上海硅酸盐研究所, 上海 200050; 2. California Institute of Technology(Caltech); CA 91125
  • 收稿日期:2000-06-28 修回日期:2000-08-15 出版日期:2001-07-20 网络出版日期:2001-07-20

Luminescence Spectra and Radiation Induced Color Centers for Lead Tungstate Crystals

QU Xiang-Dong1; ZHANG Li-Yuan2; ZHU Ren-Yuan2; LIAO Jing-Ying2; YIN Zhi-Wen 1   

  1. 1. Shanghai Institute of Ceramics; Chinese Academy of Sciences; Shanghai 200050; China; 2. California Institute of Technology; Pasadena; CA 91125; USA)
  • Received:2000-06-28 Revised:2000-08-15 Published:2001-07-20 Online:2001-07-20

摘要: 概要介绍了纯钨酸铅晶体和不同掺杂钨酸铅晶体发光光谱及辐照性能的研究结果.测量了晶体的光致发光和辐射激发发光光谱,比较了辐照诱导色心的密度和辐射发光光谱之间的关系.详细分析了钨酸铅晶体辐照诱导色心密度的分布,根据辐照诱导色心模型,计算了色心的能量及分布.

关键词: 钨酸铅, 色心, 辐照诱导, 发光光谱

Abstract: The luminescence spectra and radiation induced color centers of undoped and various doped lead
tungstate crystals were studied. The radiation induced color centers in all samples (excluding the undoped and Sb doped samples) may be
decomposed into two kinds of color centers peaked at 400 and 500nm, respectively. For undoped samples, the peaks of radiation induced color
centers are at 360 and 530nm, and those of Sb doped samples are at 350 and 430nm. These two kinds of color centers are located at two
sides of the luminescence spectra and with different damage and recovery constants.

Key words: lead tungstate, color center, luminescence spectra

中图分类号: