Please use this identifier to cite or link to this item:
|Title:||Raman scattering investigations of semiconducting diamond-like carbon thin films and fibers obtained from camphor|
|Publisher:||PERGAMON-ELSEVIER SCIENCE LTD|
|Abstract:||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.|
|Appears in Collections:||Proceedings papers|
Files in This Item:
There are no files associated with this item.
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.