PHOTOLUMINESCENCE PROPERTIES OF TRANS-4,4'-DIAMINO-STILBENE IN POLY(VINYL ALCOHOL) FILMS

Citation
A. Kawski et al., PHOTOLUMINESCENCE PROPERTIES OF TRANS-4,4'-DIAMINO-STILBENE IN POLY(VINYL ALCOHOL) FILMS, Zeitschrift fur Naturforschung. A, A journal of physical sciences, 51(10-11), 1996, pp. 1153-1156
Citations number
9
Categorie Soggetti
Chemistry Physical",Physics
ISSN journal
09320784
Volume
51
Issue
10-11
Year of publication
1996
Pages
1153 - 1156
Database
ISI
SICI code
0932-0784(1996)51:10-11<1153:PPOTIP>2.0.ZU;2-Q
Abstract
Experimental studies have shown that the nonpolar molecule 4,4'-diamin o-stilbene (DAS) in poly(vinyl alcohol) film (PVA) at 296 K, apart fro m fluorescence displays phosphorescence whose intensity differs only s lightly from that observed at 84 K. The overlapping of fluorescence an d phosphorescence bands is the reason of the unusual behaviour of the emission anisotropy in the longwave absorption and photoluminescence b ands. A distinct effect of direct irradiation on the intensity of thes e bands was observed.