| CdSe核辐射探测器的噪声与漏电流 |
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| 引用本文： | 金应荣,朱世富,赵北君,王雪敏,宋芳,李奇峰,何福庆,彭秀峰,龙先灌. CdSe核辐射探测器的噪声与漏电流[J]. 半导体学报, 2002, 23(8): 835-839. DOI: 10.3969/j.issn.1674-4926.2002.08.010 |
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| 作者姓名： | 金应荣 朱世富 赵北君 王雪敏 宋芳 李奇峰 何福庆 彭秀峰 龙先灌 |
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| 作者单位： | 1. 四川大学材料科学系,成都,610064;2. 四川大学原子核科学技术研究所,成都,610064 |
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| 基金项目： | 教育部科学技术研究项目;; |
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| 摘 要： | 对具有金属-半导体-金属(MSM)结构的CdSe探测器的噪声进行了实验观测,并对探测器中光生载流子的输运过程进行了分析,结果表明探测器的噪声是由从正极注入的空穴电流引起的.因此只有改变正极接触,才能有效地阻止空穴注入,从而消除探测器噪声.
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| 关 键 词： | CdSe探测器 噪声 MSM结构 γ射线能谱 |
| 文章编号： | 0253-4177(2002)08-0835-05 |
| 修稿时间： | 2001-10-22 |
Noise and Leakage Current in CdSe Detectors with MSM Structure |
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| Jin Yingrong ,Zhu Shifu ,Zhao Beijun ,Wang Xuemin ,Song Fang ,Li Qifeng ,He Fuqing ,Peng Xiufeng and Long Xianguan. Noise and Leakage Current in CdSe Detectors with MSM Structure[J]. Chinese Journal of Semiconductors, 2002, 23(8): 835-839. DOI: 10.3969/j.issn.1674-4926.2002.08.010 |
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| Authors: | Jin Yingrong Zhu Shifu Zhao Beijun Wang Xuemin Song Fang Li Qifeng He Fuqing Peng Xiufeng Long Xianguan |
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| Affiliation: | Jin Yingrong 1,Zhu Shifu 1,Zhao Beijun 1,Wang Xuemin 1,Song Fang 1,Li Qifeng 1,He Fuqing 2,Peng Xiufeng 2 and Long Xianguan 2 |
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| Abstract: | The noise in CdSe radiation detectors with MSM structure is investigated and attributed to the hole current injected from the anode.In the low electric field areas in the detector,the drift of the light generated electrons is very difficult,which induces the formation of space charge and consequently causes the change of the electric field profile and the lowering of hole injecting potentially.The noise can only be suppressed by changing the metal-semiconductor contacts in the anode. |
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