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Persistent Photoconductivity Study on Ion Irradiated Carbon Films

Published online by Cambridge University Press:  21 February 2011

Somnath Bhattacharyya ,
D. Kanjilal  and
S.V. Subramanyam
Somnath Bhattacharyya
Affiliation:
Department of Physics, Indian Institute of Science, Bangalore 560 012, India
D. Kanjilal
Affiliation:
Nuclear Science Centre, New Delhi 110 067, India
S.V. Subramanyam
Affiliation:
Department of Physics, Indian Institute of Science, Bangalore 560 012, India
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Abstract

Conducting carbon films are irradiated by high energy ion beam and persistent photoconductivity has been found from the irradiated samples. A complex distribution of traps created mostly by random displacement of carbon atoms by energetic ion beam from its polymeric matrix showed a persistent photoconductivity at low temperatures down to 50K. From the photo decay constants and the magnitude of photocurrent the density of traps and the corresponding activation energies have been calculated.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 396: Symposium A – Ion-Solid Interactions for Materials Modification and Processing , 1995 , 291
Copyright
Copyright © Materials Research Society 1996

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References

References:

1 Forest, S.R., Kaplan, M.L.,Schmidt, P.H., Venkatesan, T. and Ovinge, A.J.. Appi. Phys. Lett., 41, p708(1982).Google Scholar
2 Watanabe, H., Takahashi, K., Iwaki, M NIM B 80/81, p. 1489 (1993).Google Scholar
3 Zhou, J.H and Elliot, S.R Phy.Rev B 46, p.12402(1992)Google Scholar
4 Bhattacharyya, S., Rao, K.S.R.K., Kanjilal, D., and Subramanyam, S.V., Appi. Phys. Lett (communicated).Google Scholar
5 Robertson, John, Prog.Solid.State.Chem, 21, p. 199 (1991).Google Scholar
6 Sayeed, A., Bhattacharyya, S. and Subramanyam, S.V., presented at the Int. Conf. Mol. Electronics and Biocomputing 1994, Goa, India.Google Scholar
7 Bhattacharyya, S., Sayeed, Ahmed, Kanjilal, D and Subramaniyam, S.V., Vaccum Science and Technology (communicated)Google Scholar
8 'Properties and Characteristics of Amorphous carbon Films.’ Ed. John J. Pouch and A.Altovitz, Materials Science Forum, Vol. 52 & 53, Trans Tech Publications(1990).Google Scholar
9 Prawar, S., Khalish, R., Adel, M., and Richter, V.. Appi. Phy. Lett. 49, p.1157 (1986).Google Scholar
10 Simmons, J.G. and Tarn, M.C, Phys.Rev B 7 , p.3706(1972)Google Scholar
11 Bhattacharyya, S., Rastogi, A., Bhat, S. V. and Subramanyam, S. V., Phys. Rev. Letts. (communicated).Google Scholar
12 Sheinkman, M.K and Shik, A. Ya. Sov. Phys. Semicond., 10, p.128, 1976 Google Scholar
13 Street, R.A. and Winer, K., Phys.Rev. B 40, p.6236 (1989).Google Scholar
14 Gangopadhy, S., Schroder, B., and Geiger:, J. Phil.Mag. B 56, p.321 (1987).Google Scholar