Materials Science and Nanotechnology

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Raman spectroscopy of CVD graphene during the transfer process from copper to SiO2/Si substrates

3rd International Conference on Materials Science and Engineering
October 07-08, 2019 | Frankfurt, Germany

Claudia Bautista-Flores

Tecnologico de Monterrey, Mexico

Posters & Accepted Abstracts : Mater Sci Nanotechnol

Abstract:

Raman spectrum of CVD graphene was monitored during the transfer process, from the growing copper substrate to the final silicon substrate, passing through different liquids used to dissolve copper and to clean the resulting carbon film. The position of G and 2D peaks shifted when graphene was on the surface of different liquids. The largest Raman shift occurred for ferric nitrate and nitric acid solutions; this result shows that these solutions induced the p-type character of CVD graphene. The critical finding is that the situation of graphene (strain and doping) deposited via a CVD method changes when it is translated from the original to the final substrate.

Biography:

E-mail:

claudia.bautistaf@gmail.com

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