The Effect of Structural Defects of Conjugated Polymers on the Optoelectronic Properties
Semiconducting polymers,especially π-conjugated donor-acceptor(D-A)copolymers with defect-free alternating structures,are essential materials for plastic electronics and optoelectronics owing to their tunable chemical structures,tunable bandgaps and optical absorptions,excellent charge transport mobility,mechanical flexibility,and solution processability for printing.However,traditional synthesis methods may cause homocoupling structural defects,resulting in large batch variations,thus hindering the large-scale commercial application of polymer semiconductors.This study reviews the effect of homocoupling structural defects of conjugated polymers on their photoelectric properties,aiming to reveal the importance of precise synthesis on the performance of conjugated polymers.We believe this review will guide the precise and large-scale production of high-performance polymers,potentially catalyzing advancements in their industrial applications.
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