Optical observation of bonded and quasi-free hydrogen in diamond-like carbon

Authors
Ivanov-Omskii, VI Korobkov, MP Namozov, BR Smorgonskaya, EA Yastrebov, SG
Citation
Vi. Ivanov-omskii et al., Optical observation of bonded and quasi-free hydrogen in diamond-like carbon, DIAM RELAT, 8(2-5), 1999, pp. 545-548
Citations number
8
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science","Material Science & Engineering
Journal title
DIAMOND AND RELATED MATERIALS
ISSN journal
09259635 → ACNP
Volume
8
Issue
2-5
Year of publication
1999
Pages
545 - 548
Database
ISI
SICI code
0925-9635(199903)8:2-5<545:OOOBAQ>2.0.ZU;2-9
Abstract
The technique of vacuum UV Raman spectroscopy is applied to diamond-like ca rbon (a-C:H) films in order to study the state of hydrogen non-bonded with host carbon atoms. Under resonant excitation, a series of Raman bands relat ed to rotational levels of a stretched H-2 molecule is observed. The data a re used to estimate the parameters of the H-2 molecule in a-C:H. A model of the reversible transfer of hydrogen between the molecular state and states bonded to carbon is discussed. (C) 1999 Elsevier Science S.A. All rights r eserved.