Semiconducting conjugated copolymer series for organic photonics and electronics

0457167 - ÚMCH 2017 RIV CH eng C - Conference Paper (international conference)
Cimrová, Věra - Pokorná, Veronika - Dzhabarov, Vagif - Výprachtický, Drahomír
Semiconducting conjugated copolymer series for organic photonics and electronics.
Materials Science Forum. Applied Chemistry in Solving of Production Goals. Volume 851. Pfaffikon: Trans Tech Publications Inc, 2016 - (Zmeskal, O.), s. 173-178. ISBN 978-3-03835-780-3. ISSN 0255-5476.
[Meeting on Chemistry and Life /6./. Brno (CZ), 02.09.2015-04.09.2015]
R&D Projects: GA ČR(CZ) GA13-26542S; GA ČR(CZ) GAP106/12/0827
Institutional support: RVO:61389013
Keywords : low-bandgap thienothiadiazole copolymers * Suzuki coupling * photophysics
Subject RIV: CD - Macromolecular Chemistry

Donor–acceptor copolymer series containing 4,6-di(thien-2´-yl)thieno[3,4-c][1,2,5]thiadiazole or its derivatives serving as electron-acceptor units and various electron-donor units such as 9,9-bis(alkyl)fluorene, benzene, bithiophene or carbazole derivatives is reported. These copolymers possess narrow optical band gap in the range of 1.0 – 1.5 eV depending on the character of the donor units. They exhibit relatively high electron affinity. Absorption of copolymer thin films covers the whole visible spectral region extended up to NIR for some copolymers. The influence of side chain nature and molecular weight on their photophysical properties is shown. Selected copolymers are used in the blends with fullerene derivative [6,6]-phenyl-C61-butyric acid methyl ester ([60]PCBM) as active layers in bulk heterojunction photovoltaic devices. The results are discussed in relation to the copolymer structure, side chain nature and molecular weight.
Permanent Link: http://hdl.handle.net/11104/0257624