Thallium Chalcohalides for X-ray and γ-ray Detection

Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

  • Simon Johnsen, Denmark
  • Zhifu Liu
  • ,
  • John A Peters
  • ,
  • Jung-Hwan Song
  • ,
  • Sandy Nguyen
  • ,
  • Christos D Malliakas
  • ,
  • Hosub Jin
  • ,
  • Arthur J Freeman
  • ,
  • Bruce W Wessels
  • ,
  • Mercouri G Kanatzidis
  • iNano-School
We report that the chalcohalide compound Tl(6)SeI(4) 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(0.9)Zn(0.1)Te (CZT). We have synthesized high-quality single-crystalline wafers of Tl(6)SeI(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 languageEnglish
JournalJournal of the American Chemical Society
Pages (from-to)10030-3
Number of pages4
Publication statusPublished - 15 Jun 2011

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