Carbon films from polyacrylonitrile
Polyacrylonitrile (PAN) films have been fabricated by both spin and solvent casting techniques, and pyrolyzed to produce carbon films in the thickness range of 200--50 000 A. These films have higher electrical conductivities than carbon films produced from most other precursors at similar temperatures. The chemical structure of the films at different stages of processing was investigated by UV, IR, Raman, and XPS spectroscopies. An extra degree of control over the final electrical conductivity was obtained by varying the PAN content of copolymer precursors. Oxidation rates and an activation energy were determined. Finally, processing techniques are described which allow both dry and wet film transfer and lithographic patterning.
- Research Organization:
- Sandia National Laboratories, Albuquerque, New Mexico 87115
- OSTI ID:
- 6182383
- Journal Information:
- J. Mat. Res.; (United States), Vol. 4:2
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
ACRYLONITRILE
PYROLYSIS
CARBON
SYNTHESIS
CARBONIZATION
SPECTROSCOPY
ORGANIC POLYMERS
CHEMISTRY
ELECTRIC CONDUCTIVITY
INFRARED SPECTRA
PHOTOELECTRON SPECTROSCOPY
RAMAN SPECTRA
THICKNESS
THIN FILMS
ULTRAVIOLET SPECTRA
X RADIATION
CHEMICAL REACTIONS
DECOMPOSITION
DIMENSIONS
ELECTRICAL PROPERTIES
ELECTROMAGNETIC RADIATION
ELECTRON SPECTROSCOPY
ELEMENTS
FILMS
IONIZING RADIATIONS
NITRILES
NONMETALS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
PHYSICAL PROPERTIES
POLYMERS
RADIATIONS
SPECTRA
THERMOCHEMICAL PROCESSES
360601* - Other Materials- Preparation & Manufacture
400102 - Chemical & Spectral Procedures