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Raman scattering investigations of semiconducting diamond-like carbon thin films and fibers obtained from camphor

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Title Raman scattering investigations of semiconducting diamond-like carbon thin films and fibers obtained from camphor
 
Creator RZEPKA, E
LUSSON, A
PONOMAREV, EA
MUKHOPADHYAY, K
SHARON, M
LEVY-CLEMENT, C
 
Subject deposition
methane
diamond-like carbon
raman scattering
 
Description Semiconducting carbon-based thin films obtained from camphor soot were studied by micro-Raman spectroscopy with a laser wavelength of 632.8 nm. Different spectral contributions were identified between 1000 and 1650 cm(-1) and discussed. The contributions are the D-like and G-like peaks of polycrystalline graphite at similar to 1345 and 1530 cm(-1) respectively, with a FWHM value similar to 5 times larger than in a:C, and an additional feature at similar to 1240cm(-1) due to tetrahedrally-coordinated carbon of camphoric soot. Spectra obtained were typical of DLC materials with small size sp(3) clusters. This material seems to be suitable for flat panel display application using field emission by cold cathode. Thermal annealing by laser light induced a modification in the Raman spectrum. A band appears at 1591 cm(-1), close to the peak associated with the in-plane stretching mode of sp(2)-hybridized carbon atoms (crystalline graphite phase). Thick (20 mu m) and thin (1 mu m) fibers were obtained from camphor pyrolysis. Raman spectra were similar to those obtained with laser annealed thin films. (C) 1998 Elsevier Science Ltd. All rights reserved.
 
Publisher PERGAMON-ELSEVIER SCIENCE LTD
 
Date 2011-10-22T06:45:48Z
2011-12-15T09:10:47Z
2011-10-22T06:45:48Z
2011-12-15T09:10:47Z
1998
 
Type Article; Proceedings Paper
 
Identifier CARBON,36,587-590
0008-6223
http://dx.doi.org/10.1016/S0008-6223(98)00022-0
http://dspace.library.iitb.ac.in/xmlui/handle/10054/14834
http://hdl.handle.net/100/1663
 
Source Symposium A on Fullerenes and Carbon Based Materials, at the European-Materials-Research-Society 1997 Meeting,STRASBOURG, FRANCE,JUN 16-20, 1997
 
Language English