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Intercalation of Acceptors and Donors in Highly Ordered Graphite Fibers

Published online by Cambridge University Press:  15 February 2011

T.C. Chieu ,
G. Timp  and
M.S. Dresselhaus
T.C. Chieu
Affiliation:
Massachusetts Institute of Technology, Cambridge, MA 02139, USA M. ENDO, Shinshu University, Nagano 380, Japan
G. Timp
Affiliation:
Massachusetts Institute of Technology, Cambridge, MA 02139, USA M. ENDO, Shinshu University, Nagano 380, Japan
M.S. Dresselhaus
Affiliation:
Massachusetts Institute of Technology, Cambridge, MA 02139, USA M. ENDO, Shinshu University, Nagano 380, Japan
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Abstract

The intercalation of various acceptors and donors into graphite fibers, prepared from benzene-derived precursor materials is investigated by Raman spectroscopy, x-ray diffraction, electron diffraction, lattice fringing, and electrical resistivity measurements. Evidence for formation of well-staged acceptor compounds is provided by Debye-Scherrer x-ray diffraction which probes the bulk fiber and by Raman spectroscopy which probes an optical skin depth (< 0.1 μm). Lattice fringing measurements provide direct observation of large regions (up to 50 Aring; × 400 Aring;) of defectfree single-staged regions. Values for the c-axis repeat distance Ic are obtained by indexing (00l) lines of the x-ray diffraction pattern. Raman results show characteristic upshifted modes for stage 1 acceptor compounds with a sharpening in linewidth as compared to the E2g2 mode of the pristine fiber. The room temperature electrical conductivity is increased about an order of magnitude upon intercalation and exhibits a metallic dependence on temperature. The highest air-stable room temperature conductivity 1.4 × 105 (Ω-cm)−l ever reported for an intercalated fiber has been achieved.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 20: Symposium H – Intercalated Graphite , 1982 , 51
Copyright
Copyright © Materials Research Society 1983

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References

REFERENCES

1. Koyama, T., Carbon 10, 757 (1972);CrossRefGoogle Scholar
1a. Koyama, T. Endo, M. Onuma, Y., Japan J. Appl. Phys. 11, 445 (1972).CrossRefGoogle Scholar
2. Endo, M. Komaki, K. Koyama, T.: International Symposium on Carbon (1982, Toyohashi), (in press).Google Scholar
3. Koyama, T. Endo, M. Onuma, Y., Japan J. Appl. Phys. 13, 1933 (1974).Google Scholar
4. Chieu, T.C. Dresselhaus, M.S., and Endo, M., Phys. Rev. B26, 5867 (1982).Google Scholar
5. Chieu, T.C. Timp, G. Dresselhaus, M.S. Endo, M. Moore, A.W., Phys. Rev. B27 (in press).Google Scholar
6. Endo, M. Hishiyama, Y. Koyama, T., J. Phys. D. 15, 353 (1982).Google Scholar
7. Koyama, T. Endo, M. Onuma, Y., Japan J. Appl. Phys. 13, 445 (1974).Google Scholar
8. Kwizera, P. Erbil, A. Dresselhaus, M.S., Carbon 19, 144 (1981).CrossRefGoogle Scholar
9. Hooley, J.G. Bartlett, M., Carbon 5, 417 (1967);Google Scholar
9a. Hooley, J.G. Soniassy, R.N., Carbon 8, 191 (1970).Google Scholar
10. Stumpp, E., Mat. Sci. Eng. 31, 53 (1977).Google Scholar
11. Coleman, L.B., Rev. Sci. Instrum. 46, 25 (1975).Google Scholar
12. Dresselhaus, M.S. Dresselhaus, G., in Topics in Applied Physics, Vol. 51, edited by Cardona, M. Güntherodt, G. (New York, Springer, 1982), p. 3.Google Scholar
13. Timp, G. Elman, B.S. Al-Jishi, R. Dresselhaus, G., Solid State Commun. (in press).Google Scholar
14. Endo, M. Timp, G. Chieu, T.C. Dresselhaus, M.S. (to be published).Google Scholar
15. Millward, G.R. Jefferson, D.A., Chemistry and Physics of Carbon, edited by Walker, P.L. Jr. and Thrower, P.A. (MarcelDekker, Inc., New York, 1980), Vol. 14, p. 1.Google Scholar
16. A summary of conductivity measurements in intercalated graphite is given in Dresselhaus, M.S. Dresselhaus, G., Advances in Physics, 30, 139 (1981), Section 4.2.1.Google Scholar