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Structural Studies of Submonolayers of Carbon Atoms on Graphite

Published online by Cambridge University Press:  25 February 2011

M. Ge ,
K. Sattler ,
J. Xhie  and
N. Venkateswaran
M. Ge
Affiliation:
University of Hawaii, Department of Physics & Astronomy 2505 Correa Road Honolulu, Hawaii 96822, USA
K. Sattler
Affiliation:
University of Hawaii, Department of Physics & Astronomy 2505 Correa Road Honolulu, Hawaii 96822, USA
J. Xhie
Affiliation:
University of Hawaii, Department of Physics & Astronomy 2505 Correa Road Honolulu, Hawaii 96822, USA
N. Venkateswaran
Affiliation:
University of Hawaii, Department of Physics & Astronomy 2505 Correa Road Honolulu, Hawaii 96822, USA
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Abstract

Submonolayer coverages of carbon adsorbed on highly-oriented pyrolytic graphite were examined by scanning tunneling microscopy under ultra-high vacuum condition. Linear carbon wires were found on atomically flat graphite surfaces. The wires had different thicknesses, from single atomic width to about lnm. The long wires extended to over several hundred nanometers. Two directions, graphite β-β direction and 30° rotated, were preferred for the long wire orientation. Parallel wire alignment, with several nanometers of inter-wire spacings were observed. Carbon particles, from 0.7 to 2 nm in diameter were found to be attached to the carbon wires. Particles from different wires formed parallel linear chains about perpendicular to the wire direction.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 270: Symposium M – Novel Forms of Carbon , 1992 , 109
Copyright
Copyright © Materials Research Society 1992

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References

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