Syntheses of new 3,6-carbazole-based donor/acceptor conjugated copolymers for optoelectronic device applications
Journal
Macromolecular Chemistry and Physics
Journal Volume
211
Journal Issue
18
Pages
2017-2025
Date Issued
2010
Author(s)
Abstract
The syntheses, properties, and optoelectronic device characteristics of four new 3,6-carbazolebased donor/acceptor conjugated copolymers are reported. Such copolymers are used to explore the effects of acceptor strength and backbone coplanarity on the electronic and optoelectronic properties. The optical bandgaps of the studied copolymers are PCzQ (2.29 eV)>PCzDTQ (1.91 eV)>PCzTP (1.75 eV)>PCzDTTP (1.49 eV), which are much smaller than the parent poly(3,6-carbazole). The power conversion efficiency of the photovoltaic cells fabricated from blends of copolymer/PC61BM or PC71BM reached 1.01 and 1.73% by varying the film thickness or blend ratio. The experimental results suggest the potential application of 3,6-carbazole acceptor conjugated copolymers in optoelectronic devices. © 2010 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
SDGs
Other Subjects
Acceptors; Blend ratios; Carbazoles; Conjugated copolymers; Coplanarity; Device characteristics; Optoelectronic properties; Optoelectronics; Potential applications; Power conversion efficiencies; Conversion efficiency; Copolymerization; Copolymers; Electrooptical devices; Electropolymerization; Optical properties; Optoelectronic devices; Photovoltaic cells; Plastic products; Conjugated polymers
Type
journal article