Stability Study on Ceramic Mercuric Iodide (Red) X-Ray Sensor

被引：0
|
作者：
Singh, Kulvinder [1 ]
Saxena, Manoj [1 ]
机构：
[1] Univ Delhi, Deen Dayal Upadhyaya Coll, Dept Phys & Elect, New Delhi 110015, India
来源：
16TH INTERNATIONAL WORKSHOP ON PHYSICS OF SEMICONDUCTOR DEVICES | 2012年 / 8549卷
关键词：
X-Ray Sensor; Wide band semiconductor; Mercuric Iodide; Photoconduction; Degradation and stability; DETECTORS;
D O I：
10.1117/12.924240
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
A ceramic mercuric iodide X-Ray sensor probe is developed from highly pure mercuric iodide. Probe has high mechanical and chemical stability. Photoconductivity and stability are studied and analysed. It is found that dark current shows a pure resistive variation with increase in bias voltage where as photocurrent shows a sigmoidal behavior. Annealing in air helps in reducing the polarization effect and improving the sensor properties. Adsorption of iodine is found to drastically reduce sensor performance. Annealed probe shows a repetitive trend in switching characteristics.
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页数：4
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