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Preparation of Silver Nanocap Arrays and Their Surface‐enhanced Raman Scattering Activity
Author(s) -
Wang Chunxu,
Xu Duo,
Wang Yuhai,
Wang Li,
Chen Lei,
Xue Xiangxin,
Qin Zhengkun
Publication year - 2017
Publication title -
bulletin of the korean chemical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.237
H-Index - 59
ISSN - 1229-5949
DOI - 10.1002/bkcs.11244
Subject(s) - biochip , surface plasmon resonance , raman scattering , materials science , substrate (aquarium) , biosensor , plasmon , raman spectroscopy , surface enhanced raman spectroscopy , optoelectronics , excitation , nanotechnology , analytical chemistry (journal) , optics , chemistry , nanoparticle , chromatography , oceanography , physics , geology , electrical engineering , engineering
In this article, a surface‐enhanced Raman scattering ( SERS ) substrate of silver nanocap arrays was reported. With increasing the size of nanocaps, the localized surface plasmon resonance ( LSPR ) of the arrays exhibited tunable ability in the visible spectral region. The optical response of the nanocap arrays stimulated their use in SERS experiments. The assessment of SERS activity of the nanocap arrays was performed by using the 514.5 nm excitation line, and different average enhancement factor ( EF ) values were obtained. The good tunability of LSPR , relatively high average EF values and long‐range order of these substrates suggest that the silver nanocap arrays have promising applications as functional components in spectroscopy, immunoassay, biosensors, and biochips.