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Effects of the Sol-Gel Processing on the Fluorescence Properties of Laser Dyes in Tetraethoxysilane Derived Matrices

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Abstract

Two fluorescent dyes were incorporated into sol-gel derived SiO2 matrices. The dye was added to SiO2 precursors of different degrees of pre-condensation and the spectroscopic properties of the immobilized dye were measured at various aging and drying stages of the resulting gels. The significant influence of the processing parameters on the spectroscopic properties is manifested in the relative intensity of a second red shifted emission band (550–560 nm), which was observed besides the typical coumarin emission band (495 nm). The appearance of this long wavelength emission might be attributed to dye aggregation or to other reactions with the ambient matrix forced by micro porosity phenomena.

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Authors and Affiliations

  1. Bundesanstalt für Materialforschung und -prüfung, Richard-Willstätter-Strasse 11, D-12489, Berlin, Germany

    B. Unger, K. Rurack, R. Müller & U. Resch-Genger

  2. Max-Born-Institut, Max-Born-Strasse 2A, D-12489, Berlin, Germany

    K. Buttke

Authors
  1. B. Unger
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  2. K. Rurack
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  3. R. Müller
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  4. U. Resch-Genger
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  5. K. Buttke
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Unger, B., Rurack, K., Müller, R. et al. Effects of the Sol-Gel Processing on the Fluorescence Properties of Laser Dyes in Tetraethoxysilane Derived Matrices. Journal of Sol-Gel Science and Technology 19, 799–802 (2000). https://doi.org/10.1023/A:1008768318418

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  • DOI: https://doi.org/10.1023/A:1008768318418

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