Novel soluble fluorene-thienothiadiazole and fluorene-carbazole copolymers for optoelectronics

0348860 - ÚMCH 2011 RIV DE eng J - Journal Article
Cimrová, Věra - Kmínek, Ivan - Výprachtický, Drahomír
Novel soluble fluorene-thienothiadiazole and fluorene-carbazole copolymers for optoelectronics.
Macromolecular Symposia. Roč. 295, č. 1 (2010), s. 65-70. ISSN 1022-1360.
[Prague Meetings on Macromolecules /73./ New Frontiers in Macromolecular Science: From Macromolecular Concepts of Living Matter to Polymers for Better Quality of Life. Prague, 05.07.2009-09.07.2009]
R&D Projects: GA MŠMT(CZ) 1M06031; GA AV ČR IAA4050409
Institutional research plan: CEZ:AV0Z40500505
Keywords : fluorene – thienothiadiazole copolymers * photovoltaics * fluorene-carbazole copolymers
Subject RIV: JA - Electronics ; Optoelectronics, Electrical Engineering

Optical, photophysical, electrochemical and photoelectrical properties of novel soluble low-bandgap fluorene – thienothiadiazole based copolymers and luminescent fluorene – carbazole copolymers, were studied. Fluorene – thienothiadiazole copolymers possess low bandgap, high electron affinity and exhibit reversible electrochromic behaviour. Spectroelectrochemical study was performed and optical switching demonstrated. Photovoltaic devices made of blends of copolymers and fullerene derivative [60]PCBM with the power conversion efficiency 2–3% were prepared. On the other hand, the fluorene-carbazole copolymers exhibit blue photoluminescence with high quantum efficiency in solution and also in thin films. Light-emitting devices with intensive broad bluish-green-white emission were fabricated.
Permanent Link: http://hdl.handle.net/11104/0189271