CuBrxI1-x闪烁薄膜的制备和发光性能

李锋锐; 顾牡; 岳双强; 刘小林; 胡亚华; 李乾利; 张娟楠; 黄世明; 刘波; 倪晨

doi:10.3788/fgxb20194010.1228

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CuBr_xI_1-x闪烁薄膜的制备和发光性能

材料合成及性能 | 更新时间：2020-08-12

- CuBr_xI_1-x闪烁薄膜的制备和发光性能
- Preparation and Luminescence Properties of CuBr_xI_1-x Scintillation Films
- 发光学报 2019年40卷第10期页码：1228-1233
- 作者机构：
  
  同济大学物理科学与工程学院, 上海市特殊人工微结构材料与技术重点实验室上海,200092
- 作者简介：
- 基金信息：
  
  国家自然科学基金（11475128，11675121，11375129，11775160）;国家重大科学仪器设备开发专项（2011YQ13001902）资助项目
- DOI：10.3788/fgxb20194010.1228
  中图分类号： O484.4
- 收稿日期：2019-05-17，
  
  修回日期：2019-07-25，
  
  网络出版日期：2019-06-13，
  
  纸质出版日期：2019-10-05
- 稿件说明：
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李锋锐, 顾牡, 岳双强等. CuBrxI1-x闪烁薄膜的制备和发光性能[J]. 发光学报, 2019,40(10): 1228-1233

LI Feng-rui, GU Mu, YUE Shuang-qiang etc. Preparation and Luminescence Properties of CuBrxI1-x Scintillation Films[J]. Chinese Journal of Luminescence, 2019,40(10): 1228-1233
李锋锐, 顾牡, 岳双强等. CuBrxI1-x闪烁薄膜的制备和发光性能[J]. 发光学报, 2019,40(10): 1228-1233 DOI： 10.3788/fgxb20194010.1228.

LI Feng-rui, GU Mu, YUE Shuang-qiang etc. Preparation and Luminescence Properties of CuBrxI1-x Scintillation Films[J]. Chinese Journal of Luminescence, 2019,40(10): 1228-1233 DOI： 10.3788/fgxb20194010.1228.

摘要

为了系统地研究Br的引入对CuBr

薄膜发光强度和衰减时间的影响，通过气相沉积法在Si片上制备了CuBr

（0

1）闪烁薄膜，并测试了薄膜的发光性能和衰减曲线。结果表明，所制备的样品具有良好的CuBr

（0

1）固溶体结晶性；相对于长波段的深能级发射，CuBr

薄膜均表现出较强的光致和X射线激发近带边发射，且发射强度随Br含量的增加而大幅增加，有利于提高闪烁器件的探测效率；不过薄膜的发光衰减时间会随Br含量的增加而变慢（40~300 ps）。本研究工作对于通过选择合适组分的CuBr

闪烁材料以平衡探测效率和时间响应的测量需求具有重要意义。

Abstract

In order to systematically study the effects of Br on the luminescence intensity and decay time of CuBr

films

CuBr

1) films were prepared on Si wafers by vapor deposition. The luminescence properties and decay curves are measured. The results show that the prepared samples have good crystallinity of CuBr

1) solid solution. Compared with the deep-level emission located in the long wavelength band

CuBr

films show strong near-band edge emission stimulated by ultraviolet light and X-ray. The emission intensity increases rapidly with the increase of Br content

which is beneficial to improve the detection efficiency of the scintillation device. However

the decay time of the sample will slow down with the increase of Br content (40-300 ps). This research is of great significance to the selection of suitable composition of CuBr

scintillation materials in order to balance the requirements between detection efficiency and time response in actual scintillation detection.

关键词

Keywords

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