Target-plane deposition of diamond-like carbon in pulsed laser ablation of graphite
In pulsed Nd:YAG laser ablation of highly oriented pyrolytic graphite (HOPG) at 10(-6) Torr, diamond-like carbon (DLC) are deposited at laser wavelengths of 1064, 532, and 355 nm on substrates placed in the target-plane. These target-plane samples are found to contain varying sp(3) content and compo...
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| Format: | Article |
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ELSEVIER SCIENCE BV
2007
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| Online Access: | http://shdl.mmu.edu.my/2997/ |
| _version_ | 1848790205678485504 |
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| author | Yap, S.S. Tou, T.Y. |
| author_facet | Yap, S.S. Tou, T.Y. |
| author_sort | Yap, S.S. |
| building | MMU Institutional Repository |
| collection | Online Access |
| description | In pulsed Nd:YAG laser ablation of highly oriented pyrolytic graphite (HOPG) at 10(-6) Torr, diamond-like carbon (DLC) are deposited at laser wavelengths of 1064, 532, and 355 nm on substrates placed in the target-plane. These target-plane samples are found to contain varying sp(3) content and composed of nanostructures of 40-200 nm in size depending on the laser wavelength and laser fluence. The material and origin of sp(3) in the target-plane samples is closely correlated to that in the laser-modified HOPG surface layer, and hardly from the backward deposition of ablated carbon plume. The surface morphology of the target-plane samples shows the columnar growth and with a tendency for agglomeration between nanograins, in particular for long laser wavelength at 1064 nm. It is also proposed that DLC formation mechanism at the laser-ablated HOPG is possibly via the laser-induced subsurface melting and resolidification. (C) 2007 Elsevier B.V. All rights reserved. |
| first_indexed | 2025-11-14T18:08:55Z |
| format | Article |
| id | mmu-2997 |
| institution | Multimedia University |
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| last_indexed | 2025-11-14T18:08:55Z |
| publishDate | 2007 |
| publisher | ELSEVIER SCIENCE BV |
| recordtype | eprints |
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| spelling | mmu-29972011-09-26T05:31:51Z http://shdl.mmu.edu.my/2997/ Target-plane deposition of diamond-like carbon in pulsed laser ablation of graphite Yap, S.S. Tou, T.Y. QD Chemistry QC Physics In pulsed Nd:YAG laser ablation of highly oriented pyrolytic graphite (HOPG) at 10(-6) Torr, diamond-like carbon (DLC) are deposited at laser wavelengths of 1064, 532, and 355 nm on substrates placed in the target-plane. These target-plane samples are found to contain varying sp(3) content and composed of nanostructures of 40-200 nm in size depending on the laser wavelength and laser fluence. The material and origin of sp(3) in the target-plane samples is closely correlated to that in the laser-modified HOPG surface layer, and hardly from the backward deposition of ablated carbon plume. The surface morphology of the target-plane samples shows the columnar growth and with a tendency for agglomeration between nanograins, in particular for long laser wavelength at 1064 nm. It is also proposed that DLC formation mechanism at the laser-ablated HOPG is possibly via the laser-induced subsurface melting and resolidification. (C) 2007 Elsevier B.V. All rights reserved. ELSEVIER SCIENCE BV 2007-10 Article NonPeerReviewed Yap, S.S. and Tou, T.Y. (2007) Target-plane deposition of diamond-like carbon in pulsed laser ablation of graphite. Applied Surface Science, 253 (24). pp. 9521-9524. ISSN 01694332 http://dx.doi.org/10.1016/j.apsusc.2007.06.032 doi:10.1016/j.apsusc.2007.06.032 doi:10.1016/j.apsusc.2007.06.032 |
| spellingShingle | QD Chemistry QC Physics Yap, S.S. Tou, T.Y. Target-plane deposition of diamond-like carbon in pulsed laser ablation of graphite |
| title | Target-plane deposition of diamond-like carbon in pulsed laser ablation of graphite |
| title_full | Target-plane deposition of diamond-like carbon in pulsed laser ablation of graphite |
| title_fullStr | Target-plane deposition of diamond-like carbon in pulsed laser ablation of graphite |
| title_full_unstemmed | Target-plane deposition of diamond-like carbon in pulsed laser ablation of graphite |
| title_short | Target-plane deposition of diamond-like carbon in pulsed laser ablation of graphite |
| title_sort | target-plane deposition of diamond-like carbon in pulsed laser ablation of graphite |
| topic | QD Chemistry QC Physics |
| url | http://shdl.mmu.edu.my/2997/ http://shdl.mmu.edu.my/2997/ http://shdl.mmu.edu.my/2997/ |