Thallium chalcohalides for X-ray and γ-ray detection

Simon Johnsen; Zhifu Liu; John A. Peters; Jung Hwan Song; Sandy Nguyen; Christos D. Malliakas; Hosub Jin; Arthur J. Freeman; Bruce W. Wessels; Mercouri G. Kanatzidis

doi:10.1021/ja202540t

Thallium chalcohalides for X-ray and γ-ray detection

Simon Johnsen, Zhifu Liu, John A. Peters, Jung Hwan Song, Sandy Nguyen, Christos D. Malliakas, Hosub Jin, Arthur J. Freeman, Bruce W. Wessels, Mercouri G. Kanatzidis^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

108 Scopus citations

Abstract

We report that the chalcohalide compound Tl₆SeI₄ is a promising material for efficient X-ray and γ-ray detection. This material has a higher figure of merit than the current state-of-the-art material for room-temperature operation, Cd_0.9Zn_0.1Te (CZT). We have synthesized high-quality single-crystalline wafers of Tl₆SeI ₄ with detector-grade resistivities and good carrier transport of both electrons and holes. We demonstrate that pulse height spectra recorded using Co-57 radiation show an energy resolution matching that of a commercial CZT detector material.

Original language	English (US)
Pages (from-to)	10030-10033
Number of pages	4
Journal	Journal of the American Chemical Society
Volume	133
Issue number	26
DOIs	https://doi.org/10.1021/ja202540t
State	Published - Jul 6 2011

ASJC Scopus subject areas

General Chemistry
Biochemistry
Catalysis
Colloid and Surface Chemistry

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title = "Thallium chalcohalides for X-ray and γ-ray detection",

abstract = "We report that the chalcohalide compound Tl6SeI4 is a promising material for efficient X-ray and γ-ray detection. This material has a higher figure of merit than the current state-of-the-art material for room-temperature operation, Cd0.9Zn0.1Te (CZT). We have synthesized high-quality single-crystalline wafers of Tl6SeI 4 with detector-grade resistivities and good carrier transport of both electrons and holes. We demonstrate that pulse height spectra recorded using Co-57 radiation show an energy resolution matching that of a commercial CZT detector material.",

author = "Simon Johnsen and Zhifu Liu and Peters, {John A.} and Song, {Jung Hwan} and Sandy Nguyen and Malliakas, {Christos D.} and Hosub Jin and Freeman, {Arthur J.} and Wessels, {Bruce W.} and Kanatzidis, {Mercouri G.}",

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T1 - Thallium chalcohalides for X-ray and γ-ray detection

AU - Johnsen, Simon

AU - Liu, Zhifu

AU - Peters, John A.

AU - Song, Jung Hwan

AU - Nguyen, Sandy

AU - Malliakas, Christos D.

AU - Jin, Hosub

AU - Freeman, Arthur J.

AU - Wessels, Bruce W.

AU - Kanatzidis, Mercouri G.

PY - 2011/7/6

Y1 - 2011/7/6

N2 - We report that the chalcohalide compound Tl6SeI4 is a promising material for efficient X-ray and γ-ray detection. This material has a higher figure of merit than the current state-of-the-art material for room-temperature operation, Cd0.9Zn0.1Te (CZT). We have synthesized high-quality single-crystalline wafers of Tl6SeI 4 with detector-grade resistivities and good carrier transport of both electrons and holes. We demonstrate that pulse height spectra recorded using Co-57 radiation show an energy resolution matching that of a commercial CZT detector material.

AB - We report that the chalcohalide compound Tl6SeI4 is a promising material for efficient X-ray and γ-ray detection. This material has a higher figure of merit than the current state-of-the-art material for room-temperature operation, Cd0.9Zn0.1Te (CZT). We have synthesized high-quality single-crystalline wafers of Tl6SeI 4 with detector-grade resistivities and good carrier transport of both electrons and holes. We demonstrate that pulse height spectra recorded using Co-57 radiation show an energy resolution matching that of a commercial CZT detector material.

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Thallium chalcohalides for X-ray and γ-ray detection

Abstract

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