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

Weiqiang Mu, Dae Kue Hwang, Robert P.H. Chang, John B. Ketterson

Research output: Contribution to journalArticle

3 Citations (Scopus)


We have developed a new substrate for surface-enhanced Raman scattering (SERS) measurements involving a thin silver layer deposited over an ion-etched TiO2 inverse opal. The latter is formed by chemically infiltrating a polystyrene opal array with TiO2 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.

Original languageEnglish
Pages (from-to)941-944
Number of pages4
JournalJournal of Raman Spectroscopy
Issue number5
Publication statusPublished - May 1 2011



  • enhancement factors
  • inverse opal arrays
  • silver hole arrays
  • surface-enhanced Raman scattering

ASJC Scopus subject areas

  • Materials Science(all)
  • Spectroscopy

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