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The Structure Of Amorphous Hydrogenated Carbon By Neutron-Diffraction

Huxley, D.W., Honeybone, P.J.R., Newport, Robert J., Howells, W.S., Franks, J. (1992) The Structure Of Amorphous Hydrogenated Carbon By Neutron-Diffraction. MRS Online Proceedings Library, 270 (9). pp. 493-498. ISSN 0272-9172. (doi:10.1557/PROC-270-493) (The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided) (KAR id:15912)

The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided. (Contact us about this Publication)
Official URL
http://dx.doi.org/10.1557/PROC-270-493

Abstract

Neutron diffraction data from a large, off-substrate sample of amorphous hydrogenated carbon (a-C:H) is presented and discussed. The material is prepared using a fast-atom deposition system using acetylene as the precursor gas. The experiments were performed on the ISIS pulsed neutron source (Rutherford Appleton Laboratory, UK) which is capable of yielding data over an exceptionally wide dynamic range; this ensures a real-space resolution sufficient to resolve directly, for the first time, contributions from the principle C-C bond types. Precise details on the C-H correlations are also revealed by the data, including the presence of molecular hydrogen trapped within distorted spheroidal cages. Quantitative complementary data on the vibrational states of the bonded hydrogen, derived from inelastic neutron scattering (INS) using a simple force-field model, is also presented. In particular, the INS data is used to provide a reliable estimate of the CH:CH2 ratio.

Item Type: Article
DOI/Identification number: 10.1557/PROC-270-493
Additional information: Document Type: Proceedings Paper Conference Information: SYMP ON NOVEL FORMS OF CARBON SAN FRANCISCO, CA, APR 27-MAY 01, 1992 MAT RES SOC
Subjects: Q Science
Divisions: Faculties > Sciences > School of Physical Sciences > Functional Materials Group
Depositing User: J.M. Smith
Date Deposited: 15 May 2009 13:53 UTC
Last Modified: 02 Jul 2019 10:36 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/15912 (The current URI for this page, for reference purposes)
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