Novel Thiophene-Thiazolothiazole Copolymers for Organic Field-Effect Transistors

Novel Thiophene-Thiazolothiazole Copolymers for Organic Field-Effect Transistors

A semiconducting polymer bearing the thiazolothiazole moiety in the polythiophene backbone (see figure) is synthesized. The polymer is found to have small bandgap and large ionization potential. Despite the low molecular weight, the polymer exhibited a high field‐effect mobility after annealing. A h...

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Veröffentlicht in:Advanced materials (Weinheim) 2007-12, Vol.19 (23), p.4160-4165
Hauptverfasser: Osaka, I., Sauvé, G., Zhang, R., Kowalewski, T., McCullough, R. D.
Format: Artikel
Sprache:eng
Schlagworte:
Conducting polymers
Copolymers
Field-effect transistors
Field‐effect transistors, organic
organic
Thiophenes
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Zusammenfassung:A semiconducting polymer bearing the thiazolothiazole moiety in the polythiophene backbone (see figure) is synthesized. The polymer is found to have small bandgap and large ionization potential. Despite the low molecular weight, the polymer exhibited a high field‐effect mobility after annealing. A high on/off ratio suggests the polymer possesses high stability against oxygen doping. The polymer device also showed good environmental stability.
ISSN:0935-9648
1521-4095
DOI:10.1002/adma.200701058