Skip to main content Accessibility help
×
Home

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

  • Ioannis Androulakis (a1), Hao Li (a1), Christos Malliakas (a1), John A. Peters (a2), Zhifu Liu (a2), Bruce W. Wessels (a2) (a3), Jung-Hwan Song (a4), Hosub Jin (a4), Arthur J. Freeman (a4) and Mercouri G. Kanatzidis (a1)...

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.

Copyright

References

Hide All
1. Milbrath, B., Peurrung, A., Bliss, M., Weber, W., J. Mater Res. 23, 25612581 (2008).
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.
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).
4. Bolotnikov, A., Camarda, G., Wright, G., James, R., IEEE Trans. Nucl. Sci. 52, 589 (2005).
5. Nag, B.R., Infrared Phys. Technol. 36, 831 (1995).
6. Wimmer, E., Krakauer, H., Weinert, M., and Freeman, A. J., Physical Review B 24 (2), 864 (1981).
7. Bylander, D. M. and Kleinman, L., Physical Review B 41 (11), 7868 (1990).
8. MacDonald, A. H., Pickett, W. E., and Koelling, D. D., J. Phys. C 13, 2675 (1980).
9. Axtell, E.A., Park, Y., Chondroudis, K., Kanatzidis, M.G., J.Am. Chem. Soc. 120, 124 (1998)
10. Axtell, E.A., Liao, J., Pikramenou, Z., Kanatzidis, M.G., Chem. Eur. J. 2, 656 (1996).
11. Kubelka, P., Munk, Z., Z. Tech. Phys. 12, 593 (1931).
12. Owens, A., Peacock, A., Nucl. Instrum. Methods Phys. Res. Sect. A 531, 1837 (2004).
13. Many, A., High-field effects in photoconducting cadmium sulphide, J. Phys. Chem. Solids 26, 575 (1965).

Keywords

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

  • Ioannis Androulakis (a1), Hao Li (a1), Christos Malliakas (a1), John A. Peters (a2), Zhifu Liu (a2), Bruce W. Wessels (a2) (a3), Jung-Hwan Song (a4), Hosub Jin (a4), Arthur J. Freeman (a4) and Mercouri G. Kanatzidis (a1)...

Metrics

Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed