Open AccessResearch of surface enhanced Raman scattering caused by surface plasmon of Ag nano-structures
Author(s) -
Qian Huang,
Jing Wang,
Cao Li-Ran,
Jian Sun,
Xiaodan Zhang,
Geng Wang,
Xiong Shao-Zhen,
Zhao Ying
Publication year - 2009
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.58.1980
Subject(s) - materials science , raman scattering , surface plasmon resonance , surface plasmon , raman spectroscopy , plasmon , rhodamine 6g , localized surface plasmon , optics , ultraviolet , transmittance , surface plasmon polariton , scanning electron microscope , silver nano , nano , optoelectronics , analytical chemistry (journal) , nanotechnology , nanoparticle , fluorescence , chemistry , physics , composite material , chromatography
Silver nano-structures were synthesized through thermal evaporation. Scanning electron microscopy SEM observations showed that the silver nano-structures had several types of morphology. The optical properties of silver nano-structures were obtained by ultraviolet-visible spectrometry, which shows the resonance wavelength of surface plasmon. In this work, we demonstrate the surface enhanced Raman scattering SERS signals which allow us to track down the surface plasmon local field spectra of Ag nano-structures. To prove it, we also used rhodamine 6G deposited on samples. As a result, we show that the transmittance spectra and SERS enhancement gives a complete description of optical and electric field caused by surface plasmon resonance of Ag nano-structures. The difference of Raman enhancement also indicates that different structures give different surface plasmon intensity when combined with the result of SEM.