Graphene-Enhanced Raman Scattering from the Adenine Molecules

Leonid Dolgov, Denys Pidhirnyi, Galyna Dovbeshko, Tetiana Lebedieva, Valter Kiisk, Siim Heinsalu, Sven Lange, Raivo Jaaniso, Ilmo Sildos

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)

Abstract

An enhanced Raman scattering from a thin layer of adenine molecules deposited on graphene substrate was detected. The value of enhancement depends on the photon energy of the exciting light. The benzene ring in the structure of adenine molecule suggests π-stacking of adenine molecule on top of graphene. So, it is proposed that the enhancement in the adenine Raman signal is explained by the resonance electron transfer from the Fermi level of graphene to the lowest unoccupied molecular orbital (LUMO) level of adenine.

Original languageEnglish
Article number197
JournalNanoscale Research Letters
Volume11
Issue number1
DOIs
Publication statusPublished - 2016 Dec 1
Externally publishedYes

Keywords

  • Adenine
  • Chemical enhancement
  • Graphene
  • Raman scattering

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics

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