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Reflection-Extended-X-Ray-Absorption-Fine-Structure Spectroscopy at the Carbon K-Edge

Published online by Cambridge University Press:  21 February 2011

G. G. Long ,
D. R. Black  and
D. K. Tanaka
G. G. Long
Affiliation:
National Institute of Standards and Technology Gaithersburg, MD 20899
D. R. Black
Affiliation:
National Institute of Standards and Technology Gaithersburg, MD 20899
D. K. Tanaka
Affiliation:
The Johns Hopkins University Baltimore, MD 21218
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Abstract

The carbon K-edge Reflection-Extended X-Ray Absorption Fine Structure (refl-EXAFS) spectra from graphite, diamond and glassy carbon have been investigated. There is good phase shift transferability between the two well-known bonding types in diamond and graphite, provided that appropriate inner potential corrections to the K-edge energy E. are made. The model spectra from diamond and graphite were used to investigate the nature of glassy carbon. It was found that, for the particular form of glassy carbon used in this study, the bonding more closely resembled sp3 than sp2. This result is preliminary pending our evaluation of the influence of surface oxygen.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 143: Symposium V – Synchrotron Radiation in Materials Research , 1988 , 157
Copyright
Copyright © Materials Research Society 1989

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