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Proceedings Paper

Nuclear spectroscopy with polycrystalline-PbI2 radiation detectors
Author(s): M. Schieber; N. Zamoshchuk; O. Khakhan; A. Zuck
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Paper Abstract

Polycrystalline PbI2 films were deposited by Physical Vapor Deposition on ITO and gold coated glass substrates. The structural characterization of the samples was studied by using X-ray diffraction and Scanning Electron Microscopy. Two different preferred orientations - [00l] and [110] directions were found as a function of substrate temperatures, and type of substrate (ITO or Gold). The [110] direction is perpendicular to the c-axis in the hexagonal system. Four types of crystalline preferred orientations were found and named as A, B, C, and D type. The different samples were also annealed at different temperatures to improve their densities. The nuclear spectroscopic data for single crystal and polycrystalline samples were taken with 5.64 MeV Alpha particles emitted from 241Am source. The samples were also measured for their response to a blue light LED irradiation. Both polarities were studied for all samples. In most measurements it was confirmed that holes are the major carriers. The correlation between microstructure and electrical properties as affected by annealing and crystalline orientation is discussed.

Paper Details

Date Published: 16 September 2005
PDF: 8 pages
Proc. SPIE 5922, Hard X-Ray and Gamma-Ray Detector Physics VII, 59220B (16 September 2005); doi: 10.1117/12.619639
Show Author Affiliations
M. Schieber, The Hebrew Univ. of Jerusalem (Israel)
N. Zamoshchuk, The Hebrew Univ. of Jerusalem (Israel)
O. Khakhan, The Hebrew Univ. of Jerusalem (Israel)
A. Zuck, The Hebrew Univ. of Jerusalem (Israel)

Published in SPIE Proceedings Vol. 5922:
Hard X-Ray and Gamma-Ray Detector Physics VII
Ralph B. James; Larry A. Franks; Arnold Burger, Editor(s)

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