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Recent advancements of thienothiophene based conjugated polymers for organic field effect transistors
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DOI：10.1016/j.synthmet.2026.118143.png)
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Abstract
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Extensive research on thienothiophene (TT) based polymers as organic semiconductors for organic field effect transistors (OFETs) has been published. This review covers article data on important polymeric structures and synthetic models in design of thieno[3,2-b]thiophene and thieno[3,4-b]thiophene derived conjugated polymers. Their charge transport properties, effects of different functional units, copolymers with various monomers such as thiophene, benzotriazole, benzothiadiazole, benzodithiophene, tetrathienoanthracene, thienopyrazine, pyrroloindacenodithiophene, naphthalenediimide, selenophene, tellurophene, diketopyrrolopyrrole and isoindigo and molecular interactions of the corresponding conjugated it-systems on OFET performances, especially in terms of mobility, were reviewed and reported. Distances and lengths of chain groups, molecular interactions and thermal annealing of the films to obtain high performance and effective polymers in OFET were investigated with various TT polymers. The future development of thienothiophene based functional polymeric materials is undoubtedly related to the creation of more advanced designs for charge carrier materials as well as electronic applications. Charge transport in conjugated polymers depends critically on the chemical structure of the polymer backbone, morphology, aggregation and the microstructure in solid-state. This review is expected to serve to the development of new generation TT based conjugated polymers for high performance charge carrier applications.
Keywords:
Thienothiophene
Conjugated polymers
OFETs
Charge transport
Mobility
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1.4W
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1.3W
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