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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Sarath Kumar, S. R.
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Topics
Publications (7/7 displayed)
- 2013Ultraviolet laser deposition of graphene thin films without catalytic layerscitations
- 2013Crystal orientation dependent thermoelectric properties of highly oriented aluminum-doped zinc oxide thin filmscitations
- 2013In situ growth of p and n-type graphene thin films and diodes by pulsed laser depositioncitations
- 2012Laser energy tuning of carrier effective mass and thermopower in epitaxial oxide thin filmscitations
- 2012Modeling the transport properties of epitaxially grown thermoelectric oxide thin films using spectroscopic ellipsometrycitations
- 2012Enhanced carrier density in Nb-doped SrTiO3 thermoelectricscitations
- 2011Lattice dynamics and substrate-dependent transport properties of (In, Yb)-doped CoSb3 skutterudite thin filmscitations
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article
Ultraviolet laser deposition of graphene thin films without catalytic layers
Abstract
In this letter, the formation of nanostructured graphene by ultraviolet laser ablation of a highly ordered pyrolytic graphite target under optimized conditions is demonstrated, without a catalytic layer, and a model for the growth process is proposed. Previously, graphene film deposition by low-energy laser (2.3 eV) was explained by photo-thermal models, which implied that graphene films cannot be deposited by laser energies higher than the C-C bond energy in highly ordered pyrolytic graphite (3.7 eV). Here, we show that nanostructured graphene films can in fact be deposited using ultraviolet laser (5 eV) directly over different substrates, without a catalytic layer. The formation of graphene is explained by bond-breaking assisted by photoelectronic excitation leading to formation of carbon clusters at the target and annealing out of defects at the substrate.