Publication
Title
Vibrational properties of nitrogen-doped ultrananocrystalline diamond films grown by microwave plasma CVD
Author
Abstract
Ultrananocrystalline diamond (UNCD) films grown in an argon-rich Ar/CH4/H2 microwave plasma with nitrogen gas added in amounts of 0%20% were studied by Raman spectroscopy with multiple excitation wavelengths in the range of 244647 nm and by optical absorption in UVvisible. The Raman spectra have demonstrated the presence of diamond, amorphous carbon and polyacetylene in the UNCD films. Analysis of vibrational and optical properties of amorphous carbon phase proves that nitrogen stimulates the transition from amorphous carbon into an ordered graphite-like structure with narrowed optical band gap, which is supposed to be responsible for the high electrical conductivity of the N-doped UNCD.
Language
English
Source (journal)
Diamond and related materials. - Amsterdam
Publication
Amsterdam : 2007
ISSN
0925-9635
Volume/pages
16:12(2007), p. 2074-2077
ISI
000251961400017
Full text (Publishers DOI)
UAntwerpen
Faculty/Department
Research group
Publication type
Subject
Affiliation
Publications with a UAntwerp address
External links
Web of Science
Record
Identification
Creation 03.04.2009
Last edited 16.05.2017
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