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(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

Investigation of new PPV-type polymeric materials containing fluorene and thiophene units and their application in organic solar cells

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Autor(es):
de Freitas, Jilian Nei ; Pivrikas, Almantas [1] ; Nowacki, Bruno [2] ; Akcelrud, Leni C. [2] ; Sariciftci, N. Serdar [1] ; Nogueira, Ana Flavia [3]
Número total de Autores: 6
Afiliação do(s) autor(es):
[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
Número total de Afiliações: 3
Tipo de documento: Artigo Científico
Fonte: Synthetic Metals; v. 160, n. 15-16, p. 1654-1661, AUG 2010.
Citações Web of Science: 11
Resumo

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)

Processo FAPESP: 05/56924-0 - Células fotovoltaicas híbridas de polímeros condutores e nanopartículas inorgânicas
Beneficiário:Jilian Nei de Freitas
Linha de fomento: Bolsas no Brasil - Doutorado