Počet záznamů: 1

Low-band gap donor-acceptor copolymers containing thienothiadiazole units for photovoltaics

  1. 1.
    0358686 - UMCH-V 2012 RIV US eng J - Článek v odborném periodiku
    Cimrová, Věra - Kmínek, Ivan - Pavlačková, Petra - Výprachtický, Drahomír
    Low-band gap donor-acceptor copolymers containing thienothiadiazole units for photovoltaics.
    ECS Transactions. Roč. 33, č. 17 (2011), s. 119-127 ISSN 1938-5862.
    [ECS Meeting /218./. Las Vegas, 10.10.2010-15.10.2010]
    Grant CEP: GA MŠk(CZ) 1M06031
    Výzkumný záměr: CEZ:AV0Z40500505
    Klíčová slova: fluorene * thiophene * thienothiadiazole
    Kód oboru RIV: BM - Fyzika pevných látek a magnetismus

    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.
    Trvalý link: http://hdl.handle.net/11104/0196647