EXCIPLEX EMISSION IN HETEROJUNCTIONS OF POLY(PYRIDYL VINYLENE PHENYLENE VINYLENE)S AND POLY(VINYL CARBAZOLE)

Authors
GEBLER DD WANG YZ JESSEN SW BLATCHFORD JW MACDIARMID AG SWAGER TM FU DK EPSTEIN AJ
Citation
Dd. Gebler et al., EXCIPLEX EMISSION IN HETEROJUNCTIONS OF POLY(PYRIDYL VINYLENE PHENYLENE VINYLENE)S AND POLY(VINYL CARBAZOLE), Synthetic metals, 85(1-3), 1997, pp. 1205-1208
Citations number
23
Categorie Soggetti
Physics, Condensed Matter","Material Science","Polymer Sciences
Journal title
Synthetic metals → ACNP
ISSN journal
03796779
Volume
85
Issue
1-3
Year of publication
1997
Pages
1205 - 1208
Database
ISI
SICI code
0379-6779(1997)85:1-3<1205:EEIHOP>2.0.ZU;2-P
Abstract
We present photoluminescence and electroluminescence spectra of hetero junctions formed from poly(vinyl carbazole) (PVK) and poly(pyridyl vin ylene phenylene vinylene) (PPyVPV). Bilayers of PVK and PPyVPV show a photoluminescence peak which cannot be assigned to either the PVK or t he PPyVPV layer. Absorption spectra show that the additional feature r esults from an exciplex at the bilayer interface. The electroluminesce nce spectrum from the heterojunctions is due to exciplex emission, wit h internal efficiencies of similar to 0.1-0.5%.