Preparation and Luminescence Properties of CuBrxI1-x Scintillation Films
Synthesis and Properties of Materials|更新时间:2020-08-12
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Preparation and Luminescence Properties of CuBrxI1-x Scintillation Films
Chinese Journal of LuminescenceVol. 40, Issue 10, Pages: 1228-1233(2019)
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:
Supported by National Natural Science Foundation of China(11475128,11675121,11375129,11775160);Significant National Special Project of The Ministry of Science and Technology of China for Development of Scientific Instruments and Equipment(2011YQ13001902)
LI Feng-rui, GU Mu, YUE Shuang-qiang etc. Preparation and Luminescence Properties of CuBr<sub><em>x</em></sub>I<sub>1-<em>x</em></sub> Scintillation Films[J]. Chinese Journal of Luminescence, 2019,40(10): 1228-1233
LI Feng-rui, GU Mu, YUE Shuang-qiang etc. Preparation and Luminescence Properties of CuBr<sub><em>x</em></sub>I<sub>1-<em>x</em></sub> Scintillation Films[J]. Chinese Journal of Luminescence, 2019,40(10): 1228-1233 DOI: 10.3788/fgxb20194010.1228.
Preparation and Luminescence Properties of CuBrxI1-x Scintillation Films
In order to systematically study the effects of Br on the luminescence intensity and decay time of CuBr
x
I
1-
x
films
CuBr
x
I
1-
x
(0
x
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
x
I
1-
x
(0
x
1) solid solution. Compared with the deep-level emission located in the long wavelength band
CuBr
x
I
1-
x
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
x
I
1-
x
scintillation materials in order to balance the requirements between detection efficiency and time response in actual scintillation detection.
关键词
Keywords
references
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