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Characterization of Newly Synthesized Novel Graphite Films

  • Kannan M. Krishnan (a1), John Kouvetakis (a1), Takayoshi Sasaki (a1) and Neil Bartlett (a1)


Reactions of C5H6 and BCl3 at 800°C yields a metallic graphite-like material of composition BCx (3.0 ≤ x ≤ 4.00) while reactions of BCl3, NH3 and C2 produces a B/C/N graphitic semiconductor of approximate stoichiometry B2CN2. Both materials were shown to be homogeneous using Auger electron spectroscopy and extensively characterized by electron energy-loss spectroscopy. Single loss profiles of the EELS data were obtained using the fourier-log deconvolution method. Compositions were determined using hydrogenic cross-sections. A careful study of the plasmon resonance energies and the fine structures of the core-loss edges of these materials has been invaluable in demonstrating that the boron, carbon and nitrogen atoms are all sp2 hybridized. Therefore, these new materials are in-sheet graphite hybrids and not intercalations.



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Kouvetakis, J., Kaner, R. B., Sattler, M. L., and Bartlett, N., J. Chem. Soc, Chem. Commun. 1758 (1986).
2. Bartlett, N., Kouvetakis, J., Kaner, R. and Krishnan, K. M., submitted to Science.
3. Krishnan, K. M., Analytical Electron Microscopy, Joy, D.C. ed., S. F. Press, 261 (1987).
4. Kouvetakis, J., Ph. D. Thesis, Univ. of California, Berkeley (1988).
5. Egerton, R. F., EELS in the Electron Microscope, Plenum Press, N.Y. (1987).
6. Tomanek, D. et al., (private communication).


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