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Chemphyschem. 2014 Feb 3;15(2):337-43. doi: 10.1002/cphc.201300913. Epub 2013 Dec 27.

Tunable surface-enhanced Raman scattering from high-density gold semishell arrays with controllable dimensions.

Author information

1
Department of Physics and Key Laboratory of Microelectromechanical Systems (MEMS) of the Ministry of Education, Southeast University, Nanjing 211189 (P.R. China), Fax: (+86) 025-52090600-8210.

Abstract

A convenient reproducible technique is reported for the fabrication of large-area gold semishell arrays by mechanically pressing porous anodic alumina (PAA) stamps into gold/polymer bilayer structures that serve as robust and cost-efficient surface-enhanced Raman-scattering (SERS) substrates. The surface structure can be tuned further to optimize the enhancement factor according to optional PAA fabrication parameters and imprinting pressures. Finite-difference time-domain calculations indicate that the structure may possess excellent SERS characteristics due to the high density and abundance of hot spots.

KEYWORDS:

gold semishell arrays; imprints; plasmon modes; porous anodic alumina; surface-enhanced Raman scattering

PMID:
24375842
DOI:
10.1002/cphc.201300913
[Indexed for MEDLINE]
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