Hostname: page-component-6bf8c574d5-7jkgd Total loading time: 0 Render date: 2025-02-15T04:20:58.045Z Has data issue: false hasContentIssue false
  • English
  • Français

Temperature Dependence of the Photoconductivity and the Near Absence of Light-Induced Defects in a-SixGe1-x:H

Published online by Cambridge University Press:  10 February 2011

H. Fritzsche ,
P. Stradins  and
G. Belomoin
H. Fritzsche
Affiliation:
James Franck Institute, University of Chicago, Chicago, IL 60637
P. Stradins
Affiliation:
James Franck Institute, University of Chicago, Chicago, IL 60637
G. Belomoin
Affiliation:
James Franck Institute, University of Chicago, Chicago, IL 60637
Get access

Abstract

The photoconductivities ap of glow discharge deposited a-Ge:H and amorphous Si-Ge alloys prepared in different laboratories were measured between 4.2K and 300K and compared with σp(T) of intrinsic and compensated a-Si:H films. The alloys as well as a-Ge:H do not exhibit thermal quenching of σp(T) at elevated temperatures which suggests that the valence and conduction band tails have similar widths. Remarkable is the near absence of light-induced metastable defects in the alloys as well as in a-Ge:H even after prolonged exposures at low temperatures.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 420: Symposium A – Amorphous Silicon Technology-1996 , 1996 , 563
Copyright
Copyright © Materials Research Society 1996

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

1. Drüsedau, T., Pang, D. and Wickboldt, P., J. Non-Cryst. Solids 164–166, 11 (1993)Google Scholar
2. Eberhardt, K, Heintze, M. and Bauer, G. H., J. Non-Cryst. Solids 137 & 138, 187 (1991).Google Scholar
3. Eberhardt, K. and Bauer, G. H., J. Non-Cryst. Solids 164–166, 19 (1993).Google Scholar
4. Paul, W., J. Non-Cryst. Solids 164–166, 1 (1993).Google Scholar
5. Graeff, C. F. O., Brandt, M. S., Eberhardt, K., Chambouleyron, I. and Stutzmann, M., J. Non-Cryst. Solids 164–166, 15 (1993).Google Scholar
6. Guha, S., Payson, J. S., Agarwal, S. C. and Ovshinsky, S. R., J. Non-Cryst. Solids 97 & 98, 1455 (1987).Google Scholar
7. Shklovskii, B. I., Fritzsche, H. and Baranovskii, S. D., Phys. Rev. Lett. 62, 2989 (1989); J. Non-Cryst. Solids 114, 325 (1989).Google Scholar
8. Stradins, P., Tran, M. Q. and Fritzsche, H., J. Non-Cryst. Solids 164–166, 175 (1993).Google Scholar
9. Tzanetakis, P., Kopidakis, N., Androulidaki, M., Kalpouzos, C., Stradins, P. and Fritzsche, H., J. Non-Cryst. Solids (1996) in press.Google Scholar
10. Fritzsche, H., Yoon, B.-G., Chi, D. -Z. and Tran, M. Q., J. Non-Cryst. Solids 141, 123 (1992).Google Scholar
11. Williamson, D. L., Mat. Res. Soc. Conf. Proc. vol.377, 251 (1995).Google Scholar
12. Minh Tran, Q., Philos. Mag. B72, 35 (1995).Google Scholar
13. Howard, J. A. and Street, R. A., Phys. Rev. B44, 7935 (1991).Google Scholar