Protonation-deprotonation effects on the electrooptics of bipyridine containing PPV derivatives

Authors
Nakhmanovich, G Epshtein, O Gorelik, V Poplawski, JM Oiknine-Schlesinger, J Ehrenfreund, E Eichen, Y
Citation
G. Nakhmanovich et al., Protonation-deprotonation effects on the electrooptics of bipyridine containing PPV derivatives, SYNTH METAL, 101(1-3), 1999, pp. 269-270
Citations number
6
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
SYNTHETIC METALS
ISSN journal
03796779 → ACNP
Volume
101
Issue
1-3
Year of publication
1999
Pages
269 - 270
Database
ISI
SICI code
0379-6779(199905)101:1-3<269:PEOTEO>2.0.ZU;2-V
Abstract
The electrooptic properties of novel bipyridine-containing PPV derivatives were found to be sensitive to the presence of sub-ppm concentration of diff erent acids and bases. Upon exposure to ammonia (or HCl) vapors, the polyme r film turns yellow (orange) and the electro- and photoluminescence peak at 580 (640) nm. Using controlled exposure, stable yellow/orange luminescent devices could be fabricated. In addition, reversible decrease (increase) of the effect of aggregation is observed in the electro- and photoinduced abs orption, upon the deprotonation (protonation) process.