1. Deposition of carbon nitride thin films by IR-laser-induced reactions in carbon-nitrogen gas-phase compounds
- Author
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Rodica Alexandrescu, Silviu Cojocaru, A. Andrei, Ion Morjan, Raluca Cireasa, Ashock Kumar, and Aurelian Crunteanu
- Subjects
chemistry.chemical_compound ,Chemical state ,Materials science ,Carbon film ,X-ray photoelectron spectroscopy ,chemistry ,Photoemission spectroscopy ,Analytical chemistry ,chemistry.chemical_element ,Chemical vapor deposition ,Thin film ,Carbon ,Carbon nitride - Abstract
Since the theoretical studies of Liu and Cohen who predicted the existence of a superhard phase of carbon nitride, a great deal of effort was underdone in order to synthesize this hypothetical material with a nitrogen content as high as the 57% present in a (beta) -C3N4 structure. This study presents an attempt to produce CNx thin films using the laser-induced CVD technique. CW CO2 laser was used for irradiating various carbon-nitrogen containing mixtures such as C2H4/N2O/NH3. The CNx films were grown alternatively on bare alumina ((alpha) - Al2O3) substrates and on pre-deposited Ti films. A comparative analysis of nitrogen incorporation in the films obtained in different experimental conditions was performed by means of the X-ray photoelectron spectroscopy. The same method was used to identify the chemical states of the CN system.© (1998) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
- Published
- 1998
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