Incorporation of triethoxysilyl functionalized Coumarin 4 in sol-gel hosts

T. Suratwala, Z. Gardlund, J. M. Boulton, D. R. Uhlmann, J. Watson, N. Peyghambarian

Research output: Contribution to journalConference articlepeer-review

1 Scopus citations


A silylated Coumarin 4 (derCoum) laser dye has been incorporated over a large range of concentrations in sol-gel silica composites. Optically transparent films of derCoum and Coumarin 4 (Coum) doped silica were obtained; and their absorption and fluorescence spectra and fluorescence efficiency were measured. Dye extraction was investigated as a function of sol-gel processing conditions. Dye extraction results indicated that prehydrolysis of the derCoum and full hydrolysis of TMOS resulted in films from which the dye could not be extracted, suggesting that all the dye is bonded within the sol-gel matrix. The silylated dye films showed higher fluorescence efficiency at all concentrations with respect to the normal dye film.

Original languageEnglish (US)
Pages (from-to)310-320
Number of pages11
JournalProceedings of SPIE - The International Society for Optical Engineering
StatePublished - Oct 13 1994
EventSol-Gel Optics III 1994 - San Diego, United States
Duration: Jul 24 1994Jul 29 1994


  • Coumarin 4
  • Laser dyes
  • Sol-Gel
  • Solid State laser

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


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