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Growth of ultra-high purity PbI2 single crystal: (1) Preparation of high purity PbI2

✍ Scribed by T. Hayashi; M. Kinpara; J. F. Wang; K. Mimura; M. Isshiki

Publisher
John Wiley and Sons
Year
2008
Tongue
English
Weight
139 KB
Volume
43
Category
Article
ISSN
0232-1300

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✦ Synopsis

Abstract

In order to prepare high purity lead iodide (PbI~2~) single crystals, the starting material‐iodine (I) has been purified by the sublimation method, and the PbI~2~ polycrystalline by the normal freezing method. The purification effect of these methods has been confirmed by evaluating the impurity concentration in ingot by glow discharge mass spectrometry (GDMS) analysis. By comparing the purity of three different starting materials, non‐purified iodine+6N‐Pb, purified iodine+6N‐Pb and commercial 6N‐PbI~2~, PbI~2~ synthesized by purified iodine in the present experiment has the highest purity. This indicates that these purification methods are suitable. The present research results are expected to prepare high‐resistivity PbI~2~ used in radiation detector. (© 2007 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)

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