| Full text | |
| Author(s): |
de Freitas, Jilian Nei
;
Pivrikas, Almantas
[1]
;
Nowacki, Bruno
[2]
;
Akcelrud, Leni C.
[2]
;
Sariciftci, N. Serdar
[1]
;
Nogueira, Ana Flavia
[3]
Total Authors: 6
|
| Affiliation: | [1] Johannes Kepler Univ Linz, Linz Inst Organ Solar Cells, A-4040 Linz - Austria
[2] Univ Fed Parana, LaPPS, BR-80060000 Curitiba, Parana - Brazil
[3] Univ Estadual Campinas, LNES, Inst Chem, BR-13083970 Campinas, SP - Brazil
Total Affiliations: 3
|
| Document type: | Journal article |
| Source: | Synthetic Metals; v. 160, n. 15-16, p. 1654-1661, AUG 2010. |
| Web of Science Citations: | 11 |
| Abstract | |
New poly(p-phenylenevinylene) (PPV)-type conducting polymers containing different concentrations of thiophene and fluorene functional units were investigated in this work and the photophysical and electrochemical properties were evaluated. We observed a dependence of these properties on the concentration of thiophene units in the polymer backbone. The hole mobilities were estimated to be on the order of 10(-6) cm(2) V(-1) s(-1). The polymers were combined with different concentrations of a soluble fullerene derivative (PCBM) and applied in bulk-heterojunction photovoltaic cells. The effects of PCBM concentration and of annealing (post-production treatment) on these devices were investigated. The best results were obtained for the materials containing higher concentrations of thiophene units. (C) 2010 Elsevier B.V. All rights reserved. (AU) | |