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Low-band gap donor-acceptor copolymers containing thienothiadiazole units for photovoltaics
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SYSNO ASEP 0358686 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Low-band gap donor-acceptor copolymers containing thienothiadiazole units for photovoltaics Author(s) Cimrová, Věra (UMCH-V) RID, ORCID
Kmínek, Ivan (UMCH-V)
Pavlačková, Petra (UMCH-V) RID
Výprachtický, Drahomír (UMCH-V) RID, ORCIDSource Title ECS Transactions. - : Institute of Physics Publishing - ISSN 1938-5862
Roč. 33, č. 17 (2011), s. 119-127Number of pages 9 s. Action ECS Meeting /218./ Event date 10.10.2010-15.10.2010 VEvent location Las Vegas Country US - United States Event type WRD Language eng - English Country US - United States Keywords fluorene ; thiophene ; thienothiadiazole Subject RIV BM - Solid Matter Physics ; Magnetism R&D Projects 1M06031 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) CEZ AV0Z40500505 - UMCH-V (2005-2011) UT WOS 000309471500013 DOI 10.1149/1.3553354 Annotation Optical, electrochemical and photovoltaic properties of novel donor-acceptor copolymers containing dithienylthienothiadiazole derivatives and 9,9-bis(2-ethylhexyl)fluorene or 2,5-diisopentoxybenzene units were studied. The copolymers exhibited long-wavelength absorption, and possess small optical bandgap in the range of 1.1 - 1.4 eV depending on copolymer units and alkyl side-chain nature and length. They exhibited ambipolar redox properties and electrochromism. Photovoltaic devices with bulk heterojunction made of blends of copolymers and fullerene derivatives were prepared. Effects of side-chain nature and length on photophysical properties are discussed. Workplace Institute of Macromolecular Chemistry Contact Eva Čechová, cechova@imc.cas.cz ; Tel.: 296 809 358 Year of Publishing 2012
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