Chemical vapor deposition graphene transfer process to a polymeric substrate assisted by a spin coater

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Materials Research Express
Citações (Scopus)
Kessler F.
Da Rocha C.O.C.
Medeiros G.S.
Fechine G.J.M.
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© 2016 IOP Publishing Ltd.Anew method to transfer chemical vapor deposition graphene to polymeric substrates is demonstrated here, it is called direct dry transfer assisted by a spin coater (DDT-SC). Compared to the conventional method DDT, the improvement of the contact between graphene-polymer due to a very thin polymeric film deposited by spin coater before the transfer process prevented air bubbles and/or moisture and avoided molecular expansion on the graphene-polymer interface. An acrylonitrilebutadienestyrene copolymer, a high impact polystyrene, polybutadiene adipate-co-terephthalate, polylactide acid, and a styrene-butadiene-styrene copolymer are the polymers used for the transfers since they did not work very well by using the DDT process. Raman spectroscopy and optical microscopy were used to identify, to quantify, and to qualify graphene transferred to the polymer substrates. The quantity of graphene transferred was substantially increased for all polymers by using the DDT-SC method when compared with the DDT standard method. After the transfer, the intensity of the D band remained low, indicating low defect density and good quality of the transfer. The DDTSC transfer process expands the number of graphene applications since the polymer substrate candidates are increased.
Assuntos Scopus
Chemical vapor deposition graphene , Conventional methods , CVD graphene , High impact polystyrene , Low defect densities , Styrene butadiene styrenes , Thin polymeric films , Transfer process
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