期刊
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
卷 61, 期 -, 页码 131-136出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.mssp.2017.01.013
关键词
Semiconductor; Thin film; Radiation; X-Ray; UV; Sensor
In this article X-ray radiation sensitivity of ZnS thin film prepared by a chemical bath deposition technique has been reported. The films were prepared under 0.10, 0.15 and 0.20 molarity (M). Characterization reports show that the 0.20 M film has the best quality than the other low molarity films. I-V characteristics of the films were studied under dark condition and observed that the film prepared at 0.20 M has an electrical conductivity of 2.06x10(-6) (Omega cm)(-1) which is about 10 times greater than the other lower molarity films. Further, the I-V characteristic of this film has studied under UV and X-ray radiations. The current under X-ray radiation is found to be significantly higher than that under the UV radiation. At a fix bias voltage of 1.0V, the conductivity under UV radiation is found to be 3.26x10(-6) (Omega cm)(-1) whereas that under the X-ray is 4.13x10(-5) (Omega cm)(-1). The sensitivity under X-ray radiation is significantly greater than that under the UV radiation. This analysis suggests that the ZnS thin film which is used as a UV radiation sensor can also be used as a potential X-ray radiation sensor.
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