Investigation of photoluminescence efficiency in thin polymer films of poly(m-phenylenevinylene-co-2,5-dioctyloxy-p-phenylenevinylene)

Authors
O'Brien, DF Lipson, SM Cadby, AJ Lane, PA Bradley, DDC Blau, WJ
Citation
Df. O'Brien et al., Investigation of photoluminescence efficiency in thin polymer films of poly(m-phenylenevinylene-co-2,5-dioctyloxy-p-phenylenevinylene), SYNTH METAL, 121(1-3), 2001, pp. 1405-1406
Citations number
10
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
SYNTHETIC METALS
ISSN journal
03796779 → ACNP
Volume
121
Issue
1-3
Year of publication
2001
Pages
1405 - 1406
Database
ISI
SICI code
0379-6779(20010315)121:1-3<1405:IOPEIT>2.0.ZU;2-A
Abstract
The effect of film preparation procedures on the photoluminescence efficien cy (PLE) of the luminescent polymer poly(m-phenylenevinylene-co-2,5-dioctyl oxy-p-phenylenevinylene) (PmPV) were investigated. The PLE of PmPV films im proved by 50% when the solution was degassed by bubbling argon gas prior to spin casting in an inert atmosphere and baking under vacuum. Photoinduced absorption measurements show that this preparation method reduces polaron p hotogeneration, causing an increase in the photoluminescence (PL) yield thr ough a reduction in exciton quenching and excited state absorption.