Impurities behaviors in indium iodide materials

Sohee Leem, Seokjin Hwang, Hwanseung Yu, Yongsu Yoon, Kihyun Kim

Research output: Contribution to journalArticle

Abstract

Environmentally friendly 99.998%-pure indium iodide (InI), one candidate materials for the room-temperature operating radiation detector, was purified more than 250 times using the zone-refining method to reduce the impurities. Segregation coefficient of major positive and negative impurities of the purified InI ingot was analyzed using time-of-flight secondary ion mass spectroscopy. Electrical and spectroscopic properties of the purified Pd/InI/Pd detector were also determined. Planar Pd/InI/Pd detector showed the 59.5-keV gamma peak of Am-241 clearly. However, low-energy gamma peaks were buried in the noise. Mechanical or electrical degradation under an ambient condition was not observed for six months. Electrical resistivity and electron mobility-lifetime product of the multiple-refined InI were 4× 10 11 ,Ωcm and 1.3× 10 -3 ,cm 2 /V, respectively.

Original languageEnglish
Pages (from-to)909-912
Number of pages4
JournalIEEE Transactions on Nuclear Science
Volume65
Issue number3
DOIs
Publication statusPublished - Mar 1 2018

Fingerprint

Indium
iodides
indium
Impurities
impurities
Detectors
Zone melting
zone melting
Radiation detectors
Electron mobility
radiation detectors
detectors
ingots
Ingots
electron mobility
mass spectroscopy
electrical properties
Spectroscopy
degradation
Degradation

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics
  • Nuclear Energy and Engineering
  • Electrical and Electronic Engineering

Cite this

Impurities behaviors in indium iodide materials. / Leem, Sohee; Hwang, Seokjin; Yu, Hwanseung; Yoon, Yongsu; Kim, Kihyun.

In: IEEE Transactions on Nuclear Science, Vol. 65, No. 3, 01.03.2018, p. 909-912.

Research output: Contribution to journalArticle

Leem, Sohee ; Hwang, Seokjin ; Yu, Hwanseung ; Yoon, Yongsu ; Kim, Kihyun. / Impurities behaviors in indium iodide materials. In: IEEE Transactions on Nuclear Science. 2018 ; Vol. 65, No. 3. pp. 909-912.
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