Please use this identifier to cite or link to this item:
https://doi.org/10.1088/0953-8984/13/13/312
DC Field | Value | |
---|---|---|
dc.title | Laser and thermal induced micro-structural changes and decomposition of hydrogenated carbon films | |
dc.contributor.author | Zhang, L.H. | |
dc.contributor.author | Wang, J.P. | |
dc.contributor.author | Gong, H. | |
dc.date.accessioned | 2014-10-29T08:39:18Z | |
dc.date.available | 2014-10-29T08:39:18Z | |
dc.date.issued | 2001-04-02 | |
dc.identifier.citation | Zhang, L.H., Wang, J.P., Gong, H. (2001-04-02). Laser and thermal induced micro-structural changes and decomposition of hydrogenated carbon films. Journal of Physics Condensed Matter 13 (13) : 2989-2999. ScholarBank@NUS Repository. https://doi.org/10.1088/0953-8984/13/13/312 | |
dc.identifier.issn | 09538984 | |
dc.identifier.uri | http://scholarbank.nus.edu.sg/handle/10635/107086 | |
dc.description.abstract | Micro-structural changes and decomposition of hydrogenated carbon films on magnetic disk substrates prepared by DC-magnetron sputtering were studied using Ar+ laser irradiation and physical heating in air and nitrogen ambience, respectively. It was found that a weak Ar+ laser of a fluence of 0.3 mW μm-2 could significantly decompose a-C:H films. The decomposition rate was fast initially and slowed down significantly after about 20 min. The decomposition rate of a-C:H increased with hydrogen concentration in the film. Raman light intensities of the irradiated sites reduced exponentially with irradiation time. Physical heating in air revealed that the oxidation-dominated decomposition took place between 320 and 350 °C within 15 min, and an increased hydrogen concentration made the a-C:H film more vulnerable to decomposition. At 150-300 °C, a phenomenon of nano-crystal graphite formation was observed from Raman spectra. XPS analysis indicated that there was no significant diffusion of carbon atoms into the substrate at 400 °C heating. | |
dc.source | Scopus | |
dc.type | Article | |
dc.contributor.department | MATERIALS SCIENCE | |
dc.description.doi | 10.1088/0953-8984/13/13/312 | |
dc.description.sourcetitle | Journal of Physics Condensed Matter | |
dc.description.volume | 13 | |
dc.description.issue | 13 | |
dc.description.page | 2989-2999 | |
dc.description.coden | JCOME | |
dc.identifier.isiut | 000170376300015 | |
Appears in Collections: | Staff Publications |
Show simple item record
Files in This Item:
There are no files associated with this item.
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.