Thallium Chalcohalides for X-ray and γ-ray Detection

被引：104

作者：

Johnsen, Simon ^{[2
]}

Liu, Zhifu ^{[3
]}

Peters, John A. ^{[3
]}

Song, Jung-Hwan ^{[1
]}

Sandy Nguyen ^{[2
]}

Malliakas, Christos D. ^{[2
]}

Jin, Hosub ^{[1
]}

Freeman, Arthur J. ^{[1
]}

Wessels, Bruce W. ^{[3
]}

Kanatzidis, Mercouri G. ^{[2
]}

机构：

[1] Northwestern Univ, Dept Phys & Astron, Evanston, IL 60208 USA

[2] Northwestern Univ, Dept Chem, Evanston, IL 60208 USA

[3] Northwestern Univ, Mat Res Ctr, Dept Mat Sci & Engn, Evanston, IL 60208 USA

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2011年 / 133卷 / 26期

关键词：

SEMICONDUCTOR RADIATION DETECTORS; IODIDE; CDZNTE; TLBR; BR; CL; CRYSTALS; HGI2;

D O I：

10.1021/ja202540t

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We report that the chalcohalide compound Tl6SeI4 is a promising material for efficient X-ray and gamma-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 Tl6SeI4 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.

引用

页码：10030 / 10033

页数：4

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