Electrical properties of polycrystalline mercury iodide film

被引：13
|
作者：
Su, Qingfeng [1 ,2 ]
Shi, Weimin [1 ]
Li, Dongmin [3 ]
Wang, Linjun [1 ]
Ding, Weizhong [1 ]
Xia, Yiben [1 ]
机构：
[1] Shanghai Univ, Sch Mat Sci & Engn, Shanghai 200072, Peoples R China
[2] Shanghai Lianfu New Energy S&T Co Ltd, Shanghai 201201, Peoples R China
[3] Shanghai Westingarea M&E Syst Co Ltd, Shanghai 200137, Peoples R China
来源：
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2011年 / 659卷 / 01期
基金：
中国博士后科学基金; 中国国家自然科学基金;
关键词：
Physical vapor deposition; Irradiation; Electrical properties; Thin films;
D O I：
10.1016/j.nima.2011.08.024
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
The outstanding properties of mercury iodide make it an ideal material as room temperature X-ray and gamma-ray detectors. For this purpose, electrical and irradiation properties of high quality polycrystalline HgI2 detector are investigated at room temperature under irradiation conditions by 5.9 keV X-ray irradiation from a Fe-55 source. For (0 0 1)-oriented polycrystalline HgI2 film, the dark current is in the order of 10(-10) A and photocurrent is in the order of 10(-9) A with the applied voltage of 40 V. However, a good signal to noise ratio of 4.44 and an energy resolution of 4.1% for X-ray detecting is also obtained. (C) 2011 Elsevier BM. All rights reserved.
引用
收藏
页码：299 / 301
页数：3
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