Hydrogenation of sp(2)-bonded carbon surfaces using methane plasma

No Thumbnail Available
Date
2010-01-01
Journal Title
Journal ISSN
Volume Title
Publisher
Elsevier
Abstract
Highly ordered pyrolytic graphite was exposed to radio-frequency methane plasma to produce a hydrogen-terminated carbon surface. The effects of treatment parameters, namely exposure time, applied power and methane pressure, upon the treated surfaces’ chemical and morphological properties were systematically investigated. Scanning tunnelling microscopy measurements showed growth features on the plasma treated surface, the coverage of which was shown to increase with plasma exposure time or applied plasma power and decrease with gas pressure. Analyses of post-treated surface structures (via static secondary ion mass spectrometry with the aid of principle component analysis) showed an increase in surface hydrogen with plasma exposure time, applied plasma power and decreasing gas pressure. The results of these analyses were further supported by elastic recoil detection analysis measurements, which showed similar trends for the experimental parameters on the resultant surface hydrogen content. © 2010, Elsevier Ltd.
Description
Keywords
Graphite, Methane, Ion microprobe analysis, Mass spectroscopy, Hydrogenation, Plasma
Citation
Deslandes, A., Jasieniak, M., Ionescu, M., Shapter, J. G., & Quinton, J. S. (2010). Hydrogenation of sp(2)-bonded carbon surfaces using methane plasma. Applied Surface Science, 256(6), 1888-1894. doi:10.1016/j.apsusc.2009.10.025
Collections