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Dimensionally reduced heavy atom semiconductors as candidate materials for γ-ray detection: the case of Cs2Hg6S7

Published online by Cambridge University Press:  11 August 2011

Ioannis Androulakis ,
Hao Li ,
Christos Malliakas ,
John A. Peters ,
Zhifu Liu ,
Bruce W. Wessels ,
Jung-Hwan Song ,
Hosub Jin ,
Arthur J. Freeman  and
Mercouri G. Kanatzidis
Ioannis Androulakis
Affiliation:
Department of Chemistry, Northwestern University, Evanston, IL, 60208, USA
Hao Li
Affiliation:
Department of Chemistry, Northwestern University, Evanston, IL, 60208, USA
Christos Malliakas
Affiliation:
Department of Chemistry, Northwestern University, Evanston, IL, 60208, USA
John A. Peters
Affiliation:
Department of Materials Science and Engineering, Northwestern University, Evanston, IL, 60208, USA
Zhifu Liu
Affiliation:
Department of Materials Science and Engineering, Northwestern University, Evanston, IL, 60208, USA
Bruce W. Wessels
Affiliation:
Department of Materials Science and Engineering, Northwestern University, Evanston, IL, 60208, USA Department of Electrical Engineering, Northwestern University, Evanston, IL, 60208, USA
Jung-Hwan Song
Affiliation:
Department of Physics and Astronomy, Northwestern University, Evanston, IL 60208, USA
Hosub Jin
Affiliation:
Department of Physics and Astronomy, Northwestern University, Evanston, IL 60208, USA
Arthur J. Freeman
Affiliation:
Department of Physics and Astronomy, Northwestern University, Evanston, IL 60208, USA
Mercouri G. Kanatzidis
Affiliation:
Department of Chemistry, Northwestern University, Evanston, IL, 60208, USA
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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 Cs2Hg6S7 that exhibits a band-gap of 1.65eV and mobility-lifetime products comparable to those of optimized Cd0.9Zn0.1Te.

Keywords

chemical synthesisnuclear materialsradiation effects
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1341: Symposium U – Nuclear Radiation Detection Materials , 2011 , mrss11-1341-u04-06
Copyright
Copyright © Materials Research Society 2011

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References

REFERENCES

1. Milbrath, B., Peurrung, A., Bliss, M., Weber, W., J. Mater Res. 23, 2561–2581 (2008).Google Scholar
2. Luke, P.N., Amman, N., Proceedings of the15th International Workshop on Room-Temperature Semiconductor X- and Gamma-Ray Detectors, San Diego, CA, 2006, pp. 834.Google Scholar
3. Schlesinger, T.E., Toney, J.E., Yoon, H., Lee, E.Y., Brunett, B.A., Franks, L., James, R.B., Mater. Sci. Eng., R 32, 103 (2001).Google Scholar
4. Bolotnikov, A., Camarda, G., Wright, G., James, R., IEEE Trans. Nucl. Sci. 52, 589 (2005).Google Scholar
5. Nag, B.R., Infrared Phys. Technol. 36, 831 (1995).Google Scholar
6. Wimmer, E., Krakauer, H., Weinert, M., and Freeman, A. J., Physical Review B 24 (2), 864 (1981).Google Scholar
7. Bylander, D. M. and Kleinman, L., Physical Review B 41 (11), 7868 (1990).Google Scholar
8. MacDonald, A. H., Pickett, W. E., and Koelling, D. D., J. Phys. C 13, 2675 (1980).Google Scholar
9. Axtell, E.A., Park, Y., Chondroudis, K., Kanatzidis, M.G., J.Am. Chem. Soc. 120, 124 (1998)Google Scholar
10. Axtell, E.A., Liao, J., Pikramenou, Z., Kanatzidis, M.G., Chem. Eur. J. 2, 656 (1996).Google Scholar
11. Kubelka, P., Munk, Z., Z. Tech. Phys. 12, 593 (1931).Google Scholar
12. Owens, A., Peacock, A., Nucl. Instrum. Methods Phys. Res. Sect. A 531, 18–37 (2004).Google Scholar
13. Many, A., High-field effects in photoconducting cadmium sulphide, J. Phys. Chem. Solids 26, 575 (1965).Google Scholar