Dimensionally reduced heavy atom semiconductors as candidate materials for γ-ray detection: The case of Cs 2Hg 6S 7

Ioannis Androulakis, Hao Li, Christos Malliakas, John A. Peters, Zhifu Liu, Bruce W. Wessels, Jung Hwan Song, Hosub Jin, Arthur J. Freeman, Mercouri G. Kanatzidis

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

We address the issue of decreasing band-gap with increasing atomic number, inherent in semiconducting materials, by introducing a concept we call dimensional reduction. The concept leads to semiconductor compounds containing high atomic number elements and simultaneously exhibiting a large band gap and high mass density suggesting that dimensional reduction can be successfully employed in developing new γ-ray detecting materials. As an example we discuss the compound Cs 2Hg 6S 7 that exhibits a band-gap of 1.65eV and mobility-lifetime products comparable to those of optimized Cd 0.9Zn 0.1Te.

Original languageEnglish
Title of host publicationNuclear Radiation Detection Materials - 2011
Pages87-92
Number of pages6
DOIs
Publication statusPublished - Feb 20 2012
Event2011 MRS Spring Meeting - San Francisco, CA, United States
Duration: Apr 25 2011Apr 29 2011

Publication series

NameMaterials Research Society Symposium Proceedings
Volume1341
ISSN (Print)0272-9172

Other

Other2011 MRS Spring Meeting
CountryUnited States
CitySan Francisco, CA
Period4/25/114/29/11

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ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

Androulakis, I., Li, H., Malliakas, C., Peters, J. A., Liu, Z., Wessels, B. W., Song, J. H., Jin, H., Freeman, A. J., & Kanatzidis, M. G. (2012). Dimensionally reduced heavy atom semiconductors as candidate materials for γ-ray detection: The case of Cs 2Hg 6S 7. In Nuclear Radiation Detection Materials - 2011 (pp. 87-92). (Materials Research Society Symposium Proceedings; Vol. 1341). https://doi.org/10.1557/opl.2011.1273