Low-band gap copolymers containing thienothiadiazole units: Synthesis, optical, and electrochemical properties

0343355 - ÚMCH 2011 RIV US eng J - Článek v odborném periodiku
Kmínek, Ivan - Výprachtický, Drahomír - Kříž, Jaroslav - Dybal, Jiří - Cimrová, Věra
Low-band gap copolymers containing thienothiadiazole units: Synthesis, optical, and electrochemical properties.
Journal of Polymer Science. Part A - Polymer Chemistry. Roč. 48, č. 13 (2010), s. 2743-2756. ISSN 0887-624X. E-ISSN 1099-0518
Grant CEP: GA MŠMT(CZ) 1M06031; GA AV ČR IAA4050409
Výzkumný záměr: CEZ:AV0Z40500505
Klíčová slova: conjugated polymers * electrochemistry * low-band gap
Kód oboru RIV: BM - Fyzika pevných látek a magnetismus
Impakt faktor: 3.894, rok: 2010

Novel low-band gap alternating copolymers consisting of 9,9-bis(2-ethylhexyl)fluorene and 4,6-di(2-thienyl)thieno[3,4-c][1,2,5]thiadiazole and its 3,3 -dialkyl derivatives were synthesized and their photophysical and electrochemical properties were studied. The copolymers possess small optical band gap 1.3-1.4 eV. The absorption covers the whole visible spectral region. Polymer solutions exhibited solvatochromism and thermochromism, which is strongly supported by the involvement of the alkyl chains. The copolymers exhibited ambipolar redox properties and reversible electrochromic behavior.
Trvalý link: http://hdl.handle.net/11104/0005911