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Individual Nanometer Hole–Particle Pairs for Surface‐Enhanced Raman Scattering
Author(s) -
Wei Hong,
Håkanson Ulf,
Yang Zhilin,
Höök Fredrik,
Xu Hongxing
Publication year - 2008
Publication title -
small
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.785
H-Index - 236
eISSN - 1613-6829
pISSN - 1613-6810
DOI - 10.1002/smll.200701135
Subject(s) - nanometre , materials science , raman scattering , particle (ecology) , nanotechnology , raman spectroscopy , nanoparticle , biosensor , molecule , optoelectronics , optics , chemistry , physics , composite material , oceanography , organic chemistry , geology
Holed up : Individual nanometer hole–particle pairs are prepared by self‐assembly and their optical properties studied. A single nanoparticle is located in a single nanohole, which creates hot sites between them, thus greatly enhancing Raman signals of probe molecules. The enhancement is shown to depend on the spacing between the particle and hole. This new system has great potential for SERS studies in general and biosensor applications in particular.