Size Dependence of Nanoparticle-SERS Enhancement from Silver Film over Nanosphere (AgFON) Substrate

W.-C. Lin; L.-S. Liao; Y.-H. Chen; H.-C. Chang; Din-ping Tsai; H.-P. Chiang

doi:10.1007/s11468-010-9188-x

Size Dependence of Nanoparticle-SERS Enhancement from Silver Film over Nanosphere (AgFON) Substrate

W.-C. Lin, L.-S. Liao, Y.-H. Chen, H.-C. Chang, Din-ping Tsai, H.-P. Chiang

Research output: Journal article publication › Journal article › Academic research › peer-review

83 Citations (Scopus)

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. © Springer Science+Business Media, LLC.2010.

Original language	English
Pages (from-to)	201-206
Number of pages	6
Journal	Plasmonics
Volume	6
Issue number	2
DOIs	https://doi.org/10.1007/s11468-010-9188-x
Publication status	Published - 1 Jun 2011
Externally published	Yes

Keywords

Enhanced factor (EF)
Finite-difference time-domain (FDTD)
Nanosphere lithography (NSL)
Silver film over nanospheres (AgFON)
Surface-enhanced Raman scattering (SERS)

ASJC Scopus subject areas

Biotechnology
Biophysics
Biochemistry

More information

10.1007/s11468-010-9188-x

Cite this

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title = "Size Dependence of Nanoparticle-SERS Enhancement from Silver Film over Nanosphere (AgFON) Substrate",

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. {\textcopyright} Springer Science+Business Media, LLC.2010.",

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AU - Lin, W.-C.

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AU - Chang, H.-C.

AU - Tsai, Din-ping

AU - Chiang, H.-P.

PY - 2011/6/1

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KW - Finite-difference time-domain (FDTD)

KW - Nanosphere lithography (NSL)

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Size Dependence of Nanoparticle-SERS Enhancement from Silver Film over Nanosphere (AgFON) Substrate

Abstract

Keywords

ASJC Scopus subject areas

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