Fluorescence quenching due to sliver nanoparticles covered by graphene and hydrogen-terminated graphene

Cheng Wen Huang, Hsing Ying Lin, Chen Han Huang, Kai Hong Lo, Yu-Chung Chang, Chih Yi Liu, Chen Hao Wu, Yonhua Tzeng, Hsiang Chen Chui

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Fluorescence quenching effects on graphene or hydrogen-terminated graphene covered sliver nanoparticles are studied and the results are explained with energy transfer models. The fluorescence signal of R6G is suppressed by the graphene flakes via Förster resonance energy transfer and by the silver nanoparticles via surface energy transfer. The relative fluorescence intensities of R6G are reduced to 28% and 69% on the single-atom-thick graphene flake and the hydrogen-terminated graphene covered silver film, respectively. The mechanism of the quenching effect is illustrated by the energy diagram of electron transition.

Original languageEnglish
Article number053113
JournalApplied Physics Letters
Issue number5
Publication statusPublished - 2013 Feb 4


All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

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