Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
9586285 | Journal of Luminescence | 2005 | 5 Pages |
Abstract
The sol-gel process is a technique which provides a low-temperature route for the preparation of organic dye-doped porous silica glass. Extended UV transmission was observed for HCl-catalysed sol-gel silica. Properties of a solute may differ greatly between a free solution and that solution confined in pores of a sol-gel glass. Absorption and fluorescence properties of sulforhodamine 640-doped silica samples prepared by sol-gel process were investigated. In the TEOS-derived gel, the emission of the dye does not shift during aging but exhibits a large change during drying. The emission maximum of sulforhodamine 640 blue shifts was discussed as a function of increasing rigidity of the surrounding matrix.
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Authors
Haider Abbas, K.P. Tiwary, L.S.S. Singh, Mohd. Zulfequar, Z.H. Zaidi, M. Husain,