Ni induced few-layer graphene growth at low temperature by pulsed laser deposition

Autor: K. Wang, G. Tai, K. H. Wong, S. P. Lau, W. Guo
Jazyk: angličtina
Rok vydání: 2011
Předmět:
Zdroj: AIP Advances, Vol 1, Iss 2, Pp 022141-022141-9 (2011)
Druh dokumentu: article
ISSN: 2158-3226
DOI: 10.1063/1.3602855
Popis: We have used pulsed laser deposition to fabricate graphene on catalytic nickel thin film at reduced temperature of 650 °C. Non-destructive micro-Raman spectroscopic study on our samples, measuring 1x1 cm2 each, has revealed few-layer graphene formation. Bi-, tri-, and few-layer graphene growth has been verified by High Resolution Transmission Electron Microscopy. Our experimental results imply that the number of graphene layers formation relies on film thickness ratios of C to Ni, which can be well controlled by varying the laser ablation time. This simple and low temperature synthesizing method is excellent for graphene based nanotechnology research and device fabrication.
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