ISSN:
1573-4846
Keywords:
densification process
;
doped glasses
;
europium
;
luminescence
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
Notes:
Abstract We have investigated the dynamical processes of rare-earth photoluminescence in silica glasses produced by the sol-gel method. Generally, static spectroscopic properties are used as a tool to probe the local structure near dopants as well as for the study of glass formation. Rare earth ions are preferred structural probes, especially the Eu3+ ion for its sensitivity to local structural modifications and its spectroscopic simplicity. By an analysis of the decaying emission that follows a pulsed laser excitation, we have studied several dynamical processes. Importance of a distribution of different environments for the dopant is clearly seen even for the wet gels. The evolution of the lifetimes allow to study the densification process.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00486347
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