A new tellurophene-based π-conjugated polymer, PDTDPPTe, was synthesized. PDTDPPTe exhibits a smaller optical band gap (Egopt = 1.25 eV) than thiophene-based PDTDPPT (Egopt = 1.30 eV). Thin-film transistors comprising PDTDPPTe displayed outstanding performance (μmax = 1.78 cm2 V−1 s−1, Ion/Ioff = 105–6).
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