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Modeling of growth of graphene on SiC substrate |
Rafał Bombolewski , Piotr Szymczak |
Faculty of Physics, University of Warsaw, Hoża 69, Warszawa 00-681, Poland |
Abstract |
Graphene, an atom-thick, two-dimensional carbon sheet has attracted interest of researchers since its discovery in 2004. One of the most important challenges in current research is manufacturing graphene sheets of high quality and controlling the growth kinetics. In our work, we present a theoretical model of growth of graphene on (0001) face of 6H-SiC . The model is an extension of the kinetic MC model of graphene growth proposed by Ming & Zangwill.
We show that if growth is stable and nucleation of graphene layers on terraces is faster than their propagation, the kinetics of graphene growth becomes considerably simplified. Using these assumptions, we introduce different rates of growth of different layers. These parameters model effectively different rates of diffusion of Si through graphene layers, which is a crucial agent determining graphene growth kinetics. KMC numerical data will be provided, as well as different methods of extracting model's parameters from experimental data. |
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Related papers |
Presentation: Poster at 15th Summer School on Crystal Growth - ISSCG-15, by Rafał BombolewskiSee On-line Journal of 15th Summer School on Crystal Growth - ISSCG-15 Submitted: 2013-05-19 13:14 Revised: 2013-05-19 13:16 |