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Chemical vapor deposition (CVD) is widely utilized to synthesize graphene with controlled properties for many applications, especially when continuous films over large areas are required. Although hydrocarbons such as methane are quite efficient precursors for CVD at high temperature (∼1000 °C), finding less explosive and safer carbon sources is considered beneficial for the transition to large-scale production. In this work, we investigated the CVD growth of graphene using ethanol, which is a harmless and readily processable carbon feedstock that is expected to provide favorable kinetics. We tested a wide range of synthesis conditions (i.e., temperature, time, gas ratios), and on the basis of systematic analysis by Raman spectroscopy, we identified the optimal parameters for producing highly crystalline graphene with different numbers of layers. Our results demonstrate the importance of high temperature (1070 …
American Chemical Society
Publication date: 
7 Oct 2013

G Faggio, A Capasso, G Messina, S Santangelo, Th Dikonimos, S Gagliardi, R Giorgi, V Morandi, L Ortolani, N Lisi

Biblio References: 
Volume: 117 Issue: 41 Pages: 21569-21576
The Journal of Physical Chemistry C