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Metal-insulator transition in highly disordered carbon fibers

Published online by Cambridge University Press:  31 January 2011

K. Kuriyama  and
M.S. Dresselhaus
K. Kuriyama*
Affiliation:
Center for Materials Science and Engineering, Departments of Electrical Engineering and Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139
M.S. Dresselhaus
Affiliation:
Center for Materials Science and Engineering, Departments of Electrical Engineering and Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139
*
a)Permanent address: R & D Division, Sumitomo Metal Industries Ltd., Fuso 1-8, Amagasaki, Hyogo, 660 Japan.
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Abstract

The electronic transition from localized to delocalized states of carriers in a disordered carbon material is investigated by photoconductivity measurements. Phenol-derived activated carbon fibers, where the carriers are strongly localized due to disorder, are heat treated in the range 300–2500 °C to give rise to the insulator-metal transition. Dark conductivity, Raman spectra, and x-ray diffraction patterns are also measured to characterize their structural changes. As a result, the transition temperature was determined to be rather low, around 1000 °C, considering the rapid decrease in the photoconductivity above this temperature. This decrease was ascribed to a fast recombination between the photoexcited carriers and the delocalized carriers generated by heat treatment.

Type
Articles
Information
Journal of Materials Research , Volume 7 , Issue 4 , April 1992 , pp. 940 - 945
Copyright
Copyright © Materials Research Society 1992

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References

1.McMichael, B. D., Kmetko, E. A., and Mrozowski, S., J. Opt. Soc.Am. 44, 26 (1954).CrossRefGoogle Scholar
2.MacFarlane, J. M., Mclintock, I. S., and Orr, J. C., Phys. Status Solidi (a) 3, K239 (1970).CrossRefGoogle Scholar
3.Steinbeck, J., Braunstein, G., Dresselhaus, M. S., Dresselhaus, G., and Venkatesan, T., in Extended Abstracts No. 8, Graphite Intercalation Compounds, edited by Dresselhaus, M. S., Dresselhaus, G., and Solin, S.A. (Materials Research Society, Pittsburgh, PA, 1986), p. 129.Google Scholar
4.Mizushima, S. and Hirabayashi, Y., Carbon 6, 123 (1968).CrossRefGoogle Scholar
5.Ozaki, J. and Nishiyama, Y., Carbon 25, 697 (1987).CrossRefGoogle Scholar
6.Kuriyama, K. and Dresselhaus, M. S., J. Mater. Res. 6,1040 (1991).CrossRefGoogle Scholar
7.Tanaka, E., Fuel and Combustion 54, 241 (1987).Google Scholar
8.Rao, A. M., Fung, A. W. P., Dresselhaus, M. S., Dresselhaus, G., and Endo, M., submitted to J. Mater. Res.Google Scholar
9.Fung, A. W. P., Dresselhaus, M. S., and Endo, M. (unpublished).Google Scholar
10.Fung, A.W.P., Rao, A. M., Kuriyama, K., Dresselhaus, M. S., Dresselhaus, G., and Endo, M., to be published.Google Scholar
11.Tuinstra, F. and Koenig, J. L., J. Chem. Phys. 53, 1126 (1970).CrossRefGoogle Scholar
12.Nishizasi, N., Chem. Eng., 496 (1984).Google Scholar
13.Saxena, R. R. and Bragg, R. H., J. Non-Cryst. Solids 28, 45 (1978).CrossRefGoogle Scholar
14.Woolf, L. D., J. Chin, Y. R. Lin-Liu, and H. Ikezi, Phys. Rev. B 30, 861 (1984).Google Scholar
15.Heremans, J., Carbon 23, 431 (1985).CrossRefGoogle Scholar
16.Biicker, W., J. Non-Cryst. Solids 18, 11 (1975).CrossRefGoogle Scholar
17.Morgan, M., Thin Solid Films 7, 313 (1971).CrossRefGoogle Scholar
18.Kupperman, D. S., Chau, C. K., and Weinstock, H., Carbon 11, 171 (1973).CrossRefGoogle Scholar
19.Adkins, C. J., Freake, S. M., and Hamilton, E. M., Philos. Mag. 22, 183 (1970).CrossRefGoogle Scholar
20.Bhagavat, G. K. and Nayak, K. D., Thin Solid Films 64, 57 (1979).CrossRefGoogle Scholar
21.Hernandez, J. G., Hernandez-Calderon, I., Luengo, C. A., and Tsu, R., Carbon 20, 201 (1982).CrossRefGoogle Scholar
22.Franklin, R. E., Proc. Roy. Soc. 209, 196 (1951).Google Scholar
23.Hirsch, P. B., Proc. Roy. Soc. 226, 143 (1954).Google Scholar
24.Loebner, E. E., Phys. Rev. 102, 1938 (1956).CrossRefGoogle Scholar
25.Mrozowski, S., Carbon 26, 521 (1988).CrossRefGoogle Scholar
26.Ozaki, J. and Nishiyama, Y., J. Appl. Phys. 65, 2744 (1989).CrossRefGoogle Scholar
27.Spain, I.L., Volin, K. J., Goldberg, H. A., and Kalnin, I., J. Phys. Chem. Solids 44, 839 (1983).CrossRefGoogle Scholar
28.Delhaes, P. and Carmona, F., in Chemistry and Physics of Carbon (cel Dekker New York, 1981), Vol. 17, p. 89.Google Scholar