Tuning the properties of an anthracene-based PPE-PPV copolymer by fine variation of its macromolecular parameters

The effects of a moderate variation of the molecular weight on the optical, structural, morphological and transport properties of an anthracene-containing PPE-PPV copolymer are investigated, as well as their overall implication on the photovoltaic parameters of bulk-heterojunction solar cells. Just...

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Bibliographic Details
Published in:RSC advances 2013-01, Vol.3 (19), p.6972-6980
Main Authors: Tinti, Francesca, Sabir, Fedlu K., Gazzano, Massimo, Righi, Sara, Ulbricht, Christoph, Usluer, Özlem, Pokorna, Veronika, Cimrova, Vera, Yohannes, Teketel, Egbe, Daniel A. M., Camaioni, Nadia
Format: Article
Language:English
Subjects:
Copolymers
Molecular weight
Optical properties
Optimization
Photovoltaic cells
Polymeric films
Solar cells
Tuning
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Summary:The effects of a moderate variation of the molecular weight on the optical, structural, morphological and transport properties of an anthracene-containing PPE-PPV copolymer are investigated, as well as their overall implication on the photovoltaic parameters of bulk-heterojunction solar cells. Just a two-fold variation in the molecular weight is enough to induce appreciable changes in the properties of the investigated polymer films, indicating that a fine tuning of the macromolecular parameters is required for the optimization of the properties of polydispersed molecular systems. A remarkable role of the polydispersity index in the organization of polymer chains, thus reflecting in the electronic properties of the polymer films, is observed.
ISSN:2046-2069
2046-2069
DOI:10.1039/c3ra22967j