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Issue 65, 2013
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Regioregular pyridyl[2,1,3]thiadiazole-co-indacenodithiophene conjugated polymers

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Abstract

Regioregular conjugated polymers containing alternating pyridyl[2,1,3]thiadiazole (PT) and indacenodithiophene (IDT) structural units were synthesized. In these copolymers, the pyridyl nitrogen atoms on PT are precisely arranged along the backbone so that each one has an adjacent proximal and an adjacent distal counterpart across the two IDT flanking units. We find that despite the absence of obvious differences in orbital energy levels and optical bandgap, the regioregular materials exhibit larger charge carrier mobilities, as determined by using field effect transistor devices, and can yield higher solar cell power conversion efficiencies when mixed with fullerenes in bulk heterojunction active layers.

Graphical abstract: Regioregular pyridyl[2,1,3]thiadiazole-co-indacenodithiophene conjugated polymers

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Article information


Submitted
02 May 2013
Accepted
24 May 2013
First published
28 May 2013

Chem. Commun., 2013,49, 7192-7194
Article type
Communication

Regioregular pyridyl[2,1,3]thiadiazole-co-indacenodithiophene conjugated polymers

W. Wen, L. Ying, B. B. Y. Hsu, Y. Zhang, T. Nguyen and G. C. Bazan, Chem. Commun., 2013, 49, 7192
DOI: 10.1039/C3CC43229G

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