Resumo

BAUTISTA FLORES, Claudia; SATO BERRU, Roberto Ysacc  e  MENDOZA LOPEZ, Doroteo. Observación de capas de grafeno mediante contraste óptico y dispersión Raman. Mundo nano [online]. 2013, vol.6, n.11, pp.29-39.  Epub 23-Jun-2021. ISSN 2448-5691.  https://doi.org/10.22201/ceiich.24485691e.2013.11.50002.

We used the optical contrast technique to identify layers of graphene, in a simpler way in contrast with other authors; this technique was validated by Raman spectroscopy. Layers of graphene were obtained by mechanical exfoliation of Kish graphite, and were deposited on silicon substrate with a 306.2 nm film of silicon oxide. Digital images of these samples were taken to use green component of the RGB numbers in the optical contrast calculation. We can identify from one to four layers of graphene.

Palavras-chave : Optical contrast; layers of graphene; Raman spectroscopy.

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