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Proceedings Paper

Tuning of the photoinduced charge transfer process in donor-acceptor double-cable copolymers
Author(s): Silvia Luzzati; Attila Mozer; Patrick Denk; Markus C. Scharber; Marinella Catellani; Natalia O. Lupsac; Francesco Giacalone; Jose Luis Segura; Nazario Martin; Helmut Neugebauer; Niyazi S. Sariciftci
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Paper Abstract

The covalent linking of acceptor molecules to electron donating conjugated polymer is an approach for the development of new photoactive materials for the fabrication of organic photoelectric conversion devices. With this strategy we have designed a polyalkylthiophene copolymer series containing in the side chain anthraquinone molecules as electron acceptor. The peculiar features of the copolymers are the good processability and the ease in tailoring the content of acceptor moieties. Their potential use as photoactive materials is investigated in terms of the photoinduced charge transfer properties, studied by FTIR photoinduced absorption and Light Induced Electron Spin Resonance spectroscopies. The results indicate the photoinduced electron transfer from the polythiophene backbone to the anthraquinone substituents and its tunability by changing the content of acceptor molecules. The photovoltaic response of these polymers is also discussed.

Paper Details

Date Published: 6 February 2004
PDF: 8 pages
Proc. SPIE 5215, Organic Photovoltaics IV, (6 February 2004); doi: 10.1117/12.503913
Show Author Affiliations
Silvia Luzzati, Consiglio Nazionale delle Ricerche (Italy)
Attila Mozer, Konarka Austria (Austria)
Patrick Denk, Konarka Austria (Austria)
Markus C. Scharber, Johannes Kepler Univ. Linz (Austria)
Konarka Austria (Austria)
Marinella Catellani, Consiglio Nazionale delle Ricerche (Italy)
Natalia O. Lupsac, Consiglio Nazionale delle Ricerche (Italy)
Francesco Giacalone, Univ. Complutense de Madrid (Spain)
Jose Luis Segura, Univ. Complutense de Madrid (Spain)
Nazario Martin, Univ. Complutense de Madrid (Spain)
Helmut Neugebauer, Johannes Kepler Univ. Linz (Austria)
Niyazi S. Sariciftci, Johannes Kepler Univ. Linz (Austria)

Published in SPIE Proceedings Vol. 5215:
Organic Photovoltaics IV
Zakya H. Kafafi; Paul A. Lane, Editor(s)

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