EFFECT OF THE IONIC-CONDUCTIVITY IN THE SYSTEMS ITO POLY(4,4'-DIPENTOXY-2,2'BITHIOPHENE)/ALUMINIUM AND ITO/POLY(3-BUTYLTHIOPHENE)/ALUMINIUM- ELECTRICAL-PROPERTIES IN THE DARK AND UNDER ILLUMINATION/

Authors
CASALBOREMICELI G CAMAIONI N CATELLANI M GALLAZZI MC
Citation
G. Casalboremiceli et al., EFFECT OF THE IONIC-CONDUCTIVITY IN THE SYSTEMS ITO POLY(4,4'-DIPENTOXY-2,2'BITHIOPHENE)/ALUMINIUM AND ITO/POLY(3-BUTYLTHIOPHENE)/ALUMINIUM- ELECTRICAL-PROPERTIES IN THE DARK AND UNDER ILLUMINATION/, Synthetic metals, 95(3), 1998, pp. 211-215
Citations number
11
Categorie Soggetti
Physics, Condensed Matter","Material Science","Polymer Sciences
Journal title
Synthetic metals → ACNP
ISSN journal
03796779
Volume
95
Issue
3
Year of publication
1998
Pages
211 - 215
Database
ISI
SICI code
0379-6779(1998)95:3<211:EOTIIT>2.0.ZU;2-Z
Abstract
The systems ITO/poly(4,4'-dipentoxy-2,2'bithiophene) and ITO/poly(3-bu tylthiophene)/aluminium (ITO=indium-tin oxide) are characterized by th e rectifying properties of the junction polymer/aluminium. The same sy stems also showed an open circuit voltage in the dark and, under illum ination, a photocurrent decreasing in time with a diffusion trend. The last properties have been explained on the basis of water absorption by the polymers, which therefore become ionic conductors. Finally, the aluminium oxidation at the anode and the proton (or polymer) reductio n at the cathode lead to the formation of a galvanic cell. (C) 1998 El sevier Science S.A. All rights reserved.