Graphitization of Pyrocarbons - An STM Study

Saadaoui, Hassan;Roux, Jean-Claude;Flandrois, Serge;Nysten, Bernard
(1993) Carbon — Vol. 31, n° 3, p. 481-486 (1993)

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Authors
  • Saadaoui, HassanCRPP
    Author
  • Roux, Jean-ClaudeCRPP
    Author
  • Flandrois, SergeCRPP
    Author
  • Nysten, Bernardorcid-logoUCLouvain
    Author
Abstract
Scanning tunneling microscopy (STM) has been used to image at atomic resolution the surface of pyrocarbons deposited at 1680-degrees-C and heat-treated at temperatures up to 2800-degrees-C. Information is obtained on the increase of surface order with HTT. Of special interest are the presence, in HTT 2000 samples, of point defects arranged in a (square-root 7 x square-root 7) R 19. 1-degrees superstructure and attributed to an array of interstitial carbon atoms, and the observation of a moire pattern in the HTT 2200 sample, which could be due to the turbostratic nature of the layer stacking.
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Saadaoui, H., Roux, J.-C., Flandrois, S., & Nysten, B. (1993). Graphitization of Pyrocarbons - An STM Study. Carbon, 31(3), 481-486. https://doi.org/10.1016/0008-6223(93)90137-Y (Original work published 1993)