影像科学与光化学 ›› 2003, Vol. 21 ›› Issue (1): 39-45.DOI: 10.7517/j.issn.1674-0475.2003.01.39

• 研究论文 • 上一篇    下一篇

紫外线对BaFCl:Eu光激励发光的增强效应

李捷, 韩莉, 薛敏钊, 张青, 刘燕刚   

  1. 上海交通大学, 化学化工学院, 应用化学系, 上海, 200240
  • 收稿日期:2002-05-27 修回日期:2002-09-16 出版日期:2003-01-23 发布日期:2003-01-23
  • 通讯作者: 刘燕刚

THE ENHANCEMENT EFFECT OF ULTRAVIOLET ON THE PHOTOSTIMULATED LUMINESCENCE IN BaFCl:Eu PHOSPHOR

LI Jie, HAN Li, XUE Min-zhao, ZHANG Qing, LIU Yan-gang   

  1. School of Chemistry and Chemical Engineering, Shanghai Jiaotong University, Shanghai 200240, P.R. China
  • Received:2002-05-27 Revised:2002-09-16 Online:2003-01-23 Published:2003-01-23

摘要: 对X射线辐照后的BaFCl:Eu样品,通过研究紫外线辐照对光激励发光的影响,发现在一定条件下紫外线对光激励发光有增强的作用,并且根据光谱研究提出了光激励发光的过程为Eu2+和陷阱争夺激发态电子的观点,从机理上对这一现象进行了解释.

关键词: 光激励发光, 光致发光, 色心, BaFCl:Eu

Abstract: A new phenomenon of photostimulated luminescence of BaFCl:Eu which is widely used in the field of imaging has been discovered.The Photostimulated luminescence can be conditionally enhanced when the sample pre irradiated with X-ray has been irradiated by Ultraviolet such as 220 nm 271 nm 281 nm and so on.The reason of this phenomenon was discussed preliminaryly.

Key words: photostimulatde luminescence, photoluminescence, color center, BaFCl:Eu

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