Polymer BHJ solar cell performance tuning by C60 fullerene derivative alkyl side-chain length

A systematic study on the influence of the alkyl side‐chain length of C60 based fullerene derivatives in polymer solar cells based on an anthracene‐containing poly(p‐phenylene‐ethynylene)‐alt‐poly(p‐phenylene‐vinylene) (PPE‐PPV) copolymer (AnE‐PV) is reported. It is shown that the alkyl side‐chain l...

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Bibliographic Details
Published in:Journal of polymer science. Part B, Polymer physics Polymer physics, 2012-11, Vol.50 (22), p.1562-1566
Main Authors: Kästner, Christian, Ulbricht, Christoph, Egbe, Daniel A. M., Hoppe, Harald
Format: Article
Language:English
Subjects:
alkyl side-chain length
Application fields
Applied sciences
conjugated polymers
Energy
Exact sciences and technology
fullerene derivatives
fullerenes
Natural energy
Photovoltaic conversion
Polymer industry, paints, wood
polymer solar cells
PPE-PPV
Solar cells. Photoelectrochemical cells
Solar energy
Technology of polymers
thin films
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Summary:A systematic study on the influence of the alkyl side‐chain length of C60 based fullerene derivatives in polymer solar cells based on an anthracene‐containing poly(p‐phenylene‐ethynylene)‐alt‐poly(p‐phenylene‐vinylene) (PPE‐PPV) copolymer (AnE‐PV) is reported. It is shown that the alkyl side‐chain length of the fullerene derivative strongly correlates with the individual photovoltaic parameters. The most pronounced dependence on the side‐chain length is found for the fill factor, spanning the range between 50–72%, which dominantly controls in combination with the short‐circuit current the power conversion efficiency. The maximum performance of 4.8% was found for an ethyl terminated side‐chain, whereas larger alkyl groups resulted in a gradually decreasing power conversion efficiency. © 2012 Wiley Periodicals, Inc. J Polym Sci Part B: Polym Phys, 2012 A systematic study on the influence of the alkyl side‐chain length of C60‐based fullerene derivatives in BHJ solar cells using an anthracene‐containing poly(p‐phenylene‐ethynylene)‐alt‐poly(p‐phenylene‐vinylene) polymer (AnE‐PVstat) is conducted. It is shown that the length strongly affects the individual photovoltaic parameters. The best donor/acceptor mating led to a maximum performance of 4.8%.
ISSN:0887-6266
1099-0488
DOI:10.1002/polb.23141