Pulsed laser deposition of diamond‐like carbon films
作者:
David L. Pappas,
Katherine L. Saenger,
John Bruley,
William Krakow,
Jerome J. Cuomo,
Tieer Gu,
Robert W. Collins,
期刊:
Journal of Applied Physics
(AIP Available online 1992)
卷期:
Volume 71,
issue 11
页码: 5675-5684
ISSN:0021-8979
年代: 1992
DOI:10.1063/1.350501
出版商: AIP
数据来源: AIP
摘要:
Carbon thin films have been prepared by 248 nm excimer laser vaporization of graphite targets. The effect of a variety of process parameters on the film properties is investigated. Deposition at or below room temperature yields diamond‐like films with low hydrogen content, high optical transmission, and high resistivity. Electron energy loss spectra indicatesp3bond fractions of 70–85%. Detailed analyses of the pseudodielectric functions, measured using spectroscopic ellipsometry, show the films to have normal dispersion and an index of refraction of 2.5 in the visible wavelength region. The effects of a low pressure hydrogen background and the use of auxiliary pulsed and dc plasma enhancements are also examined.
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