Graphene-enhanced Raman spectroscopy of thymine adsorbed on single-layer graphene

Graphene-enhanced Raman scattering (GERS) spectra and coherent anti-Stokes Raman scattering (CARS) of thymine molecules adsorbed on a single-layer graphene were studied. The enhancement factor was shown to depend on the molecular groups of thymine. In the GERS spectra of thymine, the main bands are...

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Detalles Bibliográficos
Autores principales: Fesenko, Olena, Dovbeshko, Galyna, Dementjev, Andrej, Karpicz, Renata, Kaplas, Tommi, Svirko, Yuri
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer US 2015
Materias:
Nano Express
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4398685/
https://www.ncbi.nlm.nih.gov/pubmed/25897307
http://dx.doi.org/10.1186/s11671-015-0869-4
Descripción
Sumario:Graphene-enhanced Raman scattering (GERS) spectra and coherent anti-Stokes Raman scattering (CARS) of thymine molecules adsorbed on a single-layer graphene were studied. The enhancement factor was shown to depend on the molecular groups of thymine. In the GERS spectra of thymine, the main bands are shifted with respect to those for molecules adsorbed on a glass surface, indicating charge transfer for thymine on graphene. The probable mechanism of the GERS enhancement is discussed. CARS spectra are in accord with the GERS results, which indicates similar benefit from the chemical enhancement.

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