Chemistry Letters
Online ISSN : 1348-0715
Print ISSN : 0366-7022
ISSN-L : 0366-7022
Fluorescence Properties of BDD Molecules Doped in Si-Ti Binary Oxide Systems by the Sol-Gel Method
Jinlong ZhangHiromi YamashitaMasakazu Anpo
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1997 Volume 26 Issue 10 Pages 1027-1028

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Abstract

The characteristics of the fluorescence spectra of 2,5-bis(4-diethyl-aminophenyl)-1,3,4-oxadiazole(BDD) doped in Si-Ti binary oxides by the sol-gel method were investigated as a function of time in its transitions from sol to gel to xerogel. The characteristic BDD excimer fluorescence was observed during the transition from gel to xerogel only in a mixture of TEOS and TPOT but not in pure TEOS, indicating that the presence of a tetrahedrally coordinated titanium ion species plays a significant role in the formation of the excimer.

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© 1997 The Chemical Society of Japan
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