Incorporation of triethoxysilyl functionalized Coumarin 4 in sol-gel hosts

Tayyab I. Suratwala; Zack Gardlund; J. M. Boulton; Donald R. Uhlmann; Jason Watson; Nasser Peyghambarian

doi:10.1117/12.188964

13 October 1994 Incorporation of triethoxysilyl functionalized Coumarin 4 in sol-gel hosts

Tayyab I. Suratwala, Zack Gardlund, J. M. Boulton, Donald R. Uhlmann, Jason Watson, Nasser Peyghambarian

Author Affiliations +

Proceedings Volume 2288, Sol-Gel Optics III; (1994) https://doi.org/10.1117/12.188964
Event: SPIE's 1994 International Symposium on Optics, Imaging, and Instrumentation, 1994, San Diego, CA, United States

Abstract

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.

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Tayyab I. Suratwala, Zack Gardlund, J. M. Boulton, Donald R. Uhlmann, Jason Watson, and Nasser Peyghambarian "Incorporation of triethoxysilyl functionalized Coumarin 4 in sol-gel hosts", Proc. SPIE 2288, Sol-Gel Optics III, (13 October 1994); https://doi.org/10.1117/12.188964

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