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Metastable Optical Absorption and Paramagnetism in Hydrogenated Amorphous Silicon

Published online by Cambridge University Press:  26 February 2011

J. M. Viner
Affiliation:
Department of Physics, University of Utah, Salt Lake City, UT 84112
C. Lee
Affiliation:
Department of Physics, University of Utah, Salt Lake City, UT 84112
W. D. Ohlsen
Affiliation:
Department of Physics, University of Utah, Salt Lake City, UT 84112
P. C. Taylor
Affiliation:
Department of Physics, University of Utah, Salt Lake City, UT 84112
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Abstract

After rapid cooling from 210°C a characteristic electron spin resonance (ESR) and a characteristic below-gap optical absorption have been observed to grow with time at room temperature in hydrogenated amorphous silicon (a-Si:H). Both the increased ESR and the increased optical absorption anneal at temperatures above about 100°C. These unexpected results may have important consequences for our understanding of the electronic properties of a-Si:H.

Type
Research Article
Copyright
Copyright © Materials Research Society 1988

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References

[1] Carlson, D. E. and Magee, C. W., Appl. Phys. Lett. 33, 81 (1978).Google Scholar
[2] Smith, Z. E. and Wagner, S., Phys. Rev. B 32, 5510 (1985); Z. E. Smith et al., Phys. Rev. Lett. 57, 2450 (1986).Google Scholar
[3] Street, R. A., Kakalios, J., and Hayes, T. M., Phys. Rev. B 34, 3030 (1986); R. A. Street, J. Kakalios, C. C. Tsai, and T. M. Hayes, Phys. Rev. B 35, 1316 (1987).Google Scholar
[4] Lee, C., Ohlsen, W. D., and Taylor, P. C., Phys. Rev. B 36, 2965 (1987).Google Scholar
[5] Jackson, W. and Amer, N., Phys. Rev. B 25, 5559 (1982).Google Scholar
[6] Müiler, G., Kalbitzer, S., and Mannsperger, H., Appl. Phys. A 39, 243 (1986).Google Scholar
[7] Okushi, H. et al.,in Optical Effects in Amor-phous Semiconductors, edited by Taylor, P. C. and Bishop, S. G., AIP Conf. Proc. No. 120 (AIP, New York, 1984), p. 250.Google Scholar
[8] Han, D. and Fritzsche, H., J. Non-Cryst. Solids 59&60, 397 (1983).Google Scholar