Ion-induced depletion of hydrogen from a soft carbonized layer
- 15 May 1989
- journal article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 65 (10) , 3833-3837
- https://doi.org/10.1063/1.343399
Abstract
Soft carbonized layers prepared in a glow discharge, with a hydrogen concentration of H:C∼4/3, are exposed to helium ion bombardment at energies between 0.3 and 2.6 MeV. A strong ion-induced depletion of up to 3×103 H atoms per incident 4He+ ion is observed by means of high-energy ion beam analysis. The hydrogen release is shown to be a local process, with the electronic energy deposition as the main responsible mechanism. The results are successfully compared to a model which takes into account local bond breaking and retrapping and the local formation of hydrogen molecules.This publication has 22 references indexed in Scilit:
- Effects of heavy ion irradiation on amorphous hydrogenated (diamondlike) carbon filmsJournal of Applied Physics, 1987
- Surface modification due to hydrogen-graphite interactionNuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 1987
- Carbonization in tokamaksJournal of Nuclear Materials, 1987
- Chemical erosion of amorphous hydrogenated carbon films by atomic and energetic hydrogenJournal of Nuclear Materials, 1987
- Hydrogen recycle and isotope exchange from dense carbon filmsJournal of Nuclear Materials, 1987
- Thermal desorption of hydrogen, deuterium and tritium from pyrolytic graphiteJournal of Nuclear Materials, 1984
- Investigation of hydrocarbon-plasma-generated carbon films by electron-energy-loss spectroscopyPhysical Review B, 1984
- Bonding in hydrogenated hard carbon studied by optical spectroscopySolid State Communications, 1983
- Structure and bonding of hydrocarbon plasma generated carbon films: An electron energy loss studySolid State Communications, 1983
- Trapping, detrapping and replacement of keV hydrogen implanted into graphiteJournal of Nuclear Materials, 1980