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Four copolymers (XP10, XP11, XP12 and XP13) based on diketopyrrolopyrrole (DPP) and carbazole units with tetrathiophene porphyrin (TTP) side chains linked by a flexible alkyl‐interval were designed and synthesized. The effects of the introduction of TTP on the optical and electrochemical properties, the morphology, the mobility and the photovoltaic performance of copolymers were systematically studied...
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