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Nanospacers: Highly Intensified Surface Enhanced Raman Scattering by Using Monolayer Graphene as the Nanospacer of Metal Film–Metal Nanoparticle Coupling System (Adv. Funct. Mater. 21/2014)
Author(s) -
Li Xuanhua,
Choy Wallace C. H.,
Ren Xingang,
Zhang Di,
Lu Haifei
Publication year - 2014
Publication title -
advanced functional materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 6.069
H-Index - 322
eISSN - 1616-3028
pISSN - 1616-301X
DOI - 10.1002/adfm.201470137
Subject(s) - graphene , materials science , monolayer , raman scattering , metal , plasmon , raman spectroscopy , nanotechnology , nanoparticle , coupling (piping) , molecule , chemical engineering , optoelectronics , composite material , optics , organic chemistry , metallurgy , physics , chemistry , engineering
Ultrathin monolayer graphene as a welldefined sub‐nanospacer between Ag NPs and Ag film is demonstrated by C. H. Choy and co‐workers. Their results show that the system offers a tremendous near‐field enhancement with one of the highest enhancement ratios reported to date in the graphene–metal plasmonic combination system. There is an additional chemical enhancement from the interaction between graphene sub‐nanospacer and detection molecules.