Poly(3-alkylthiophene) Nanofibers for Photovoltaic Energy Conversion

Sabine Bertho; Wibren D. Oosterbaan; Veerle Vrindts; Jean Christophe Bolsée; Fortunato Piersimoni; Donato Spoltore; Jan D'Haen; Laurence Lutsen; Dirk Vanderzande; Jean V. Manca

doi:10.4028/www.scientific.net/AMR.324.32

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 324Poly(3-alkylthiophene) Nanofibers for Photovoltaic...

Poly(3-alkylthiophene) Nanofibers for Photovoltaic Energy Conversion

Abstract:

The use of nanostructured non-conventional semiconductors such as conjugated polymers and metal oxides (e.g. TiO₂), opens promising perspectives towards a new generation of solar cells based on the concept of donor:acceptor bulk heterojunctions. In this concept donor material and acceptor material form interpenetrating networks allowing light absorption, charge transfer and charge transport throughout the entire bulk of the thin film. Since nanomorphology is of crucial importance for this type of solar cells, in this contribution the use of nanofibers in bulk heterojunction solar cells is explored in order to obtain highways for charge transport. We investigate in particular the use of P3AT (poly(3-alkylthiophene)) nanofibers and show that the polymer fraction aggregated into fibers can be easily controlled by temperature. We find an optimal efficiency at intermediate fiber fraction and show that it can be linked to the morphology of the active layer.

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Periodical:

Advanced Materials Research (Volume 324)

Pages:

32-37

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.324.32

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Online since:

August 2011

Authors:

Sabine Bertho, Wibren D. Oosterbaan, Veerle Vrindts, Jean Christophe Bolsée, Fortunato Piersimoni, Donato Spoltore, Jan D'Haen, Laurence Lutsen, Dirk Vanderzande, Jean V. Manca

Keywords:

Nanofiber, Nanomorphology, Organic Solar Cell (OSC), TEM

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