Silver‐coated inverse opals formed from polystyrene spheres for surface‐enhanced Raman scattering | Zendy

Mu Weiqiang | Zendy; Hwang DaeKue | Zendy; Chang Robert P. H. | Zendy; Ketterson John B. | Zendy

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Silver‐coated inverse opals formed from polystyrene spheres for surface‐enhanced Raman scattering

Author(s) -

Mu Weiqiang,

Hwang DaeKue,

Chang Robert P. H.,

Ketterson John B.

Publication year - 2011

Publication title -

journal of raman spectroscopy

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.748

H-Index - 110

eISSN - 1097-4555

pISSN - 0377-0486

DOI - 10.1002/jrs.2800

Subject(s) - polystyrene , raman scattering , materials science , substrate (aquarium) , raman spectroscopy , layer (electronics) , spheres , chemical engineering , thermal decomposition , laser , wavelength , nanotechnology , optics , optoelectronics , chemistry , composite material , polymer , organic chemistry , oceanography , physics , engineering , astronomy , geology

We have developed a new substrate for surface‐enhanced Raman scattering (SERS) measurements involving a thin silver layer deposited over an ion‐etched TiO 2 inverse opal. The latter is formed by chemically infiltrating a polystyrene opal array with TiO 2 followed by a thermal decomposition of the spheres. The SERS response of the these substrates is examined for several sphere sizes and lasers wavelengths; the results show that such substrates yield high enhance factors, comparable to substrates involving a silver layer deposited directly on a polystyrene opal array. Copyright © 2010 John Wiley & Sons, Ltd.

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