Organic modification of mesoporous silicon rugate filters: The influence of nanoarchitecture on optical behaviour

Kristopher A. Kilian, Till Böcking, Leo M.H. Lai, Suhrawardi Ilyas, Katharina Gaus, Michael Gal, J. Justin Gooding

Research output: Contribution to journalArticlepeer-review

Abstract

The internal nanostructure and optical properties of mesoporous silicon rugate filters prepared on different p- type silicon substrates are compared for applications in biosensing. Chemical derivatisation of the internal surface by undecenoic acid hydrosilylation results in red-shifting of the resonant wavelength of the filter, whereby the magnitude of the red shift is found to be a function of the pore morphology. The pore structure was found to play a significant role during infiltration of protein into the photonic crystal.

Original languageEnglish (US)
Pages (from-to)170-178
Number of pages9
JournalInternational Journal of Nanotechnology
Volume5
Issue number2-3
DOIs
StatePublished - Jan 2008

Keywords

  • Hydrosilylation
  • Optical biosensor
  • Photonic crystal
  • Porous silicon
  • Rugate filter

ASJC Scopus subject areas

  • Bioengineering
  • Condensed Matter Physics
  • Electrical and Electronic Engineering
  • Materials Chemistry

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