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Implantation-Induced Conductivity of Polymers

Published online by Cambridge University Press:  25 February 2011

B. Wasserman ,
G. Braunstein ,
M.S. Dresselhaus  and
G.E. Wnek
B. Wasserman
Affiliation:
Center for Materials Science and Engineering; Department of Physics;
G. Braunstein
Affiliation:
Center for Materials Science and Engineering; Department of Physics;
M.S. Dresselhaus
Affiliation:
Center for Materials Science and Engineering; Department of Physics; Department of Electrical Engineering and Computer Science;
G.E. Wnek
Affiliation:
Center for Materials Science and Engineering; Department of Materials Science and Engineering;Massachusetts Institute of Technology, Cambridge, MA 02139, USA
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Abstract

Ion implantation causes an increase by ~14 orders of magnitude in the electricalconductivity of normally insulating polymers such as polyacrylonitrile (PAN), poly(2,6 dimethyl phenylene-oxide) (PPO), and poly (pphenylene sulfide) (PPS), after ion implantation with Br at fluences of 3 × 1015 ions/cm2. The temperature dependence of the dc conductivity was measured in the range 23 〈 T 〈 293 K and results show an exponential law σ ~ exp(−To/T)a) for PAN, PPO and PPS with α =1/2, suggesting a one-dimensional hopping mechanism. The temperature dependence of the thermoelectric power (TEP) identifies the sign of the dominant carrier type. The TEP exhibits linear metallic behavior, with small magnitudes (~3μV/K), and shows Br implantation to yield p-type material in PPS and n-type material in PAN with extremely low values of mobility (〈 10−3 cm2/V sec) and correspondingly very high values of the carrier concentration estimated to be 5 × 1022 cm-3. Results are also reported for the frequency dependence of the AC conductivity and of similarly implanted PPS and PAN samples.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 27: Symposium E – Ion Implantation and Ion Beam Processing of Materials , 1983 , 423
Copyright
Copyright © Materials Research Society 1984

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References

REFERENCES

1. Lindhard, J., Scharff, M., Schiott, H.E., Mat. Fys. Medd. Dan. Vid. Selsk. 33, 14 (1963).Google Scholar
2. Mazurek, H., Day, D.R., Maby, E.W., Abel, J.S., Senturia, S.D., Dresselhaus, G. and Dresselhaus, M.S., J. Polymer Science, Polymer Physics Edition 21, 539 (1983).Google Scholar
3. Venkatesan, T., Forrest, S.R., Kaplan, M.L., Murray, C.A., Schmidt, P.K., and Wilkens, B.J., J. Appl. Phys. 54, 3150 (1983).Google Scholar
4. Dresselhaus, M.S., Wasserman, B. and Wnek, G.E., Proceedings of this Symposium.Google Scholar
5. Bloch, A.N., Weisman, R.B. and Varma, C.M., Phys. Rev. Letters 28, 273 (1972).Google Scholar
6. Cohen, M.H. and Jortner, J., Phys. Rev. Lett. 30, 699 (1973).Google Scholar
7. Ambegaokar, V., Halperin, B.I. and Langer, S.J., Phys. Rev. B4, 2612 (1971).Google Scholar
8. Chance, R.R., Boudreaux, D.S., Bredas, J.L., and Silbey, R.J., Handbook on Conducting Polymers, edited by Skotheim, T. (Marcel Dekker, New York) (to be published).Google Scholar
9. Chaikin, P.M., Greene, R.L., Etemad, S. and Engler, E., Phys. Rev. B13, 1627 (1976).Google Scholar
10. Gogolin, A.A., Physics Reports 86, 1 (1982).Google Scholar
11. Pollak, M., Phil. Mag. 23, 519 (1970).Google Scholar