Hard a-C(N):H films obtained from plasma decomposition of methylamine-containing mixtures

Autor: F. L. Freire, Gino Mariotto, D. F. Franceschini, M. M. Lacerda
Rok vydání: 1997
Předmět:
Zdroj: Scopus-Elsevier
ISSN: 0925-9635
DOI: 10.1016/s0925-9635(96)00749-2
Popis: Hard amorphous hydrogenated carbon-nitrogen films were obtained by PECVD of pure methylamine and methylamine-acetylene mixtures. The chemical composition of the films was determined by nuclear techniques, and their structure examined by infrared and Raman spectroscopies. The film obtained from pure methylamine have a N C atomic ratio of 0.64, and a Raman spectrum that is characteristic of nanocrystalline graphitic carbon films. The films obtained from acetylene-methylamine mixtures show the same dependence of the structure details on the nitrogen content as already observed in a-C(N):H films deposited using other gas mixtures, i.e. a progressive increase in sp2 character of the carbon atoms when the nitrogen content in the film increases.
Databáze: OpenAIRE