The Effect Of Temperature On The Structure Of Amorphous Hydrogenated Carbon

Walters, J.K. and Fox, D.M. and Burke, Terry and Weedon, O.D. and Newport, Robert J. and Howells, W.S. (1994) The Effect Of Temperature On The Structure Of Amorphous Hydrogenated Carbon. Journal of Chemical Physics, 101 (5). pp. 4288-4300. ISSN 0021-9606. (doi: (Full text available)

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The results of a neutron diffraction study on the structure of amorphous hydrogenated carbon alpha-C:H are presented up to a maximum temperature of 1000 degrees C. The data show clearly the effect on atomic correlations of elevated temperatures, with the initial room-temperature amorphous network (a mixture of single bonds and olefinic double bonds) becoming progressively aromatic, then graphitic as hydrogen is evolved. Complementary x-ray diffraction and infrared spectroscopy data are also presented, the infrared data enabling a more detailed discussion of the temperature-dependent hydrogen environment, and the x-ray data are used to highlight the change in the carbon network. Comparisons have been made with previous work on similar systems and a brief summary of these results is given.

Item Type: Article
Subjects: Q Science
Divisions: Faculties > Sciences > School of Physical Sciences > Functional Materials Group
Depositing User: J.M. Smith
Date Deposited: 12 May 2009 15:21 UTC
Last Modified: 20 May 2014 13:25 UTC
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