A SPECTROSCOPIC STUDY OF THE PH SENSOR RESPONSE OF FLUORESCEIN DOPED SILICA AND ALUMINOSILICA SOL-GEL GLASSES

Authors
SHAMANSKY LM YANG M OLTEANU M CHRONISTER EL
Citation
Lm. Shamansky et al., A SPECTROSCOPIC STUDY OF THE PH SENSOR RESPONSE OF FLUORESCEIN DOPED SILICA AND ALUMINOSILICA SOL-GEL GLASSES, Materials letters, 26(3), 1996, pp. 113-120
Citations number
40
Categorie Soggetti
Material Science","Physics, Applied
Journal title
Materials letters → ACNP
ISSN journal
0167577X
Volume
26
Issue
3
Year of publication
1996
Pages
113 - 120
Database
ISI
SICI code
0167-577X(1996)26:3<113:ASSOTP>2.0.ZU;2-S
Abstract
The pH dependent absorption spectrum of fluorescein doped silica and a luminosilica sol-gel glasses is used to demonstrate that the xerogel m atrices alter the stability of certain fluorescein structures. In addi tion, time-resolved spectral changes demonstrate that ionic diffusion plays a significant role in the observed kinetics.