SEMICONDUCTOR MATERIALS

Electrical and γ-ray energy spectrum response properties of PbI2 crystal grown by physical vapor transport

Sun Hui, Zhu Xinghua, Yang Dingyu, He Zhiyu, Zhu Shifu and Zhao Beijun

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Abstract: Lead iodide single crystal was grown by physical vapor transport method. Two radiation detectors with different configurations were fabricated from the as-grown crystal. The electrical and γ-ray response properties at room temperature of the both detectors were investigated. It is found that the dark resistivity of the detectors are respectively 3×1010 Ω.cm for bias electric field parallel to crystal c-axis (E∥c) and 2×108 Ω.cm for perpendicular to crystal c-axis (E⊥c). The energy spectrum response measurement shows that both detectors were sensitive to 241Am 59.5 keV γ-rays, and achieved a good energy resolution of 16.8% for the E⊥c-axis configuration detector with a full width at half maximum of 9.996 keV.

Key words: PbI2 crystal

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    Received: 20 August 2015 Revised: 20 November 2011 Online: Published: 01 May 2012

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      Sun Hui, Zhu Xinghua, Yang Dingyu, He Zhiyu, Zhu Shifu, Zhao Beijun. Electrical and γ-ray energy spectrum response properties of PbI2 crystal grown by physical vapor transport[J]. Journal of Semiconductors, 2012, 33(5): 053002. doi: 10.1088/1674-4926/33/5/053002 Sun H, Zhu X H, Yang D Y, He Z Y, Zhu S F, Zhao B J. Electrical and γ-ray energy spectrum response properties of PbI2 crystal grown by physical vapor transport[J]. J. Semicond., 2012, 33(5): 053002. doi: 10.1088/1674-4926/33/5/053002.Export: BibTex EndNote
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      Sun Hui, Zhu Xinghua, Yang Dingyu, He Zhiyu, Zhu Shifu, Zhao Beijun. Electrical and γ-ray energy spectrum response properties of PbI2 crystal grown by physical vapor transport[J]. Journal of Semiconductors, 2012, 33(5): 053002. doi: 10.1088/1674-4926/33/5/053002

      Sun H, Zhu X H, Yang D Y, He Z Y, Zhu S F, Zhao B J. Electrical and γ-ray energy spectrum response properties of PbI2 crystal grown by physical vapor transport[J]. J. Semicond., 2012, 33(5): 053002. doi: 10.1088/1674-4926/33/5/053002.
      Export: BibTex EndNote

      Electrical and γ-ray energy spectrum response properties of PbI2 crystal grown by physical vapor transport

      doi: 10.1088/1674-4926/33/5/053002
      • Received Date: 2015-08-20
      • Accepted Date: 2011-10-28
      • Revised Date: 2011-11-20
      • Published Date: 2012-04-11

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