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   FEI STU Bratislava    deGruyter-Sciendo

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[1, 2017] 

Journal of Electrical Engineering, Vol 68, 1 (2017) 79-82 10.1515/jee-2017-0011

Graphene growth by transfer-free chemical vapour deposition on a cobalt layer

Petr Macháč, Ondřej Hejna, Petr Slepička

   The contribution deals with the preparation of graphene films by a transfer-free chemical vapour deposition process utilizing a thin cobalt layer. This method allows growing graphene directly on a dielectric substrate. The process was carried out in a cold-wall reactor with methane as carbon precursor. We managed to prepare bilayer graphene. The best results were obtained for a structure with a cobalt layer with a thickness of 50 nm. The quality of prepared graphene films and of the number of graphene layers were estimated using Raman spectroscopy. with a minimal dots diameter of 180 nm and spacing of 1000 nm were successfully developed.

Keywords: graphene, cold wall reactor, CVD process, transfer-free process


[full-paper]


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