National Taiwan Ocean University Institutional Repository:Item 987654321/41192
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题名: Size dependence of Nanoparticle-SERS Enhancement from Silver Film over Nanosphere (AgFON) Substrate
作者: Wen-Chi Lin
Lu-Shing Liao
Yi-Hui Chen
Hung-Chun Chang
Din Ping Tsai
Hai-Pang Chiang
贡献者: 國立臺灣海洋大學:光電科學研究所
关键词: Finite-difference time-domain (FDTD)
Surface-enhanced Raman scattering (SERS)
Nanosphere lithography (NSL)
Silver film over nanospheres (AgFON)
Enhanced factor (EF)
日期: 2011
上传时间: 2017-02-10T01:14:02Z
出版者: Plasmonics
摘要: Abstract: The dependence of nanoparticle size on surface-enhanced Raman scattering (SERS) from silver film over nanospheres substrate is studied. For a range of nanosphere sizes from 430 to 1,500 nm, optimum SERS signal is obtained with a nanosphere size of 1,000 nm at an excitation wavelength of 532 nm. We have clarified the physical origin of this optimization in an unambiguious way as due to resonant plasmonic excitations from 3D finite-difference time-domain simulations, as well as with the assistance of UV-visible reflectance spectrum.
關聯: 6(12)
URI: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/41192
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