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Proceedings Paper

Design of low band gap small molecules with alkyldicyanovinyl acceptor and different donor groups for efficient bulk heterojunction organic solar cells
Author(s): Yuriy N. Luponosov; Jie Min; Alexander N. Solodukhin; Sergei N. Chvalun; Tayebeh Ameri; Christoph J. Brabec; Sergey A. Ponomarenko
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Paper Abstract

A library of low band gap small molecules with alkyldicyanovinyl acceptor and triphenylamine, tris(2- methoxyphenyl)amine or dithienosilole donor groups linked through (oligo)thiophene conjugated spacers was designed and successfully synthesized. Systematic variations of the alkyl chain length and the number of conjugated thiophene rings in the molecules allowed to elucidate the structure-properties relationships for their solubility, absorption spectra, phase behavior, morphology and structure in thin films, as well as photovoltaic properties. Bulk heterojunction organic solar cells prepared from these molecules as donors and PCBM[70] as acceptor by solution processing showed power conversion efficiency up to 5.4 - 6.4%.

Paper Details

Date Published: 9 September 2015
PDF: 13 pages
Proc. SPIE 9567, Organic Photovoltaics XVI, 95670W (9 September 2015); doi: 10.1117/12.2187454
Show Author Affiliations
Yuriy N. Luponosov, Enikolopov Institute of Synthetic Polymeric Materials (Russian Federation)
Jie Min, Friedrich-Alexander-Univ. Erlangen-Nuremberg (Germany)
Alexander N. Solodukhin, Enikolopov Institute of Synthetic Polymeric Materials (Russian Federation)
Sergei N. Chvalun, Enikolopov Institute of Synthetic Polymeric Materials (Russian Federation)
National Research Ctr. (Russian Federation)
Tayebeh Ameri, Friedrich-Alexander-Univ. Erlangen-Nuremberg (Germany)
Christoph J. Brabec, Friedrich-Alexander-Univ. Erlangen-Nuremberg (Germany)
Nesmeyanov Institute of Organoelement Compounds (Russian Federation)
Sergey A. Ponomarenko, Enikolopov Institute of Synthetic Polymeric Materials (Russian Federation)
Moscow State Univ. (Russian Federation)


Published in SPIE Proceedings Vol. 9567:
Organic Photovoltaics XVI
Zakya H. Kafafi; Paul A. Lane; Ifor D. W. Samuel, Editor(s)

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