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13 October 1994 Time-resolved fluorescence line-narrowing and lifetime studies of gel-derived Eu2O3-Al2O3-SiO2 systems
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Abstract
Time-resolved, fluorescence line narrowing (FLN) spectra and fluorescence lifetimes are used to characterize local structure in Eu3+-doped silica gels. Co-doping with Al3+ is shown to have a significant effect on the local structure of the Eu3+ ion in the silica matrix. A pulsed dye laser was used to selectively excite subsets of ions contributing to the inhomogeneously broadened 7FO$ARLR5DO transition. Resultant line-narrowed fluorescence spectra and lifetimes are interpreted in terms of site symmetry, energy transfer, Eu3+ ion clustering, and residual hydroxyl groups.
© (1994) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Michael J. Lochhead and Kevin L. Bray "Time-resolved fluorescence line-narrowing and lifetime studies of gel-derived Eu2O3-Al2O3-SiO2 systems", Proc. SPIE 2288, Sol-Gel Optics III, (13 October 1994); https://doi.org/10.1117/12.189005
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