As high-performance organic semiconductors, π-conjugated polymers have attracted much attention due to their charming advantages including low-cost, solution processability, mechanical flexibility, and tunable optoelectronic properties. During the past several decades, the great advances have been made in polymers-based OFETs with p-type, n-type or even ambipolar characterics. Through chemical modification and alignment optimization, lots of conjugated polymers exhibited superior mobilities, and some mobilities are even larger than 10 cm 2 V -1 s -1 in OFETs, which makes them very promising for the applications in organic electronic devices. This review describes the recent progress of the high performance polymers used in OFETs from the aspects of molecular design and assembly strategy. Furthermore, the current challenges and outlook in the design and development of conjugated polymers are also mentioned.

Supramolecular chirality is highly required for functional material development. In this study, we report the synthesis of charge-transfer (CT) complex-based twisted nanobelts using self-assembled cocrystallization from asymmetric component. An asymmetric...

The derivatization of perylenediimides (PDIs) by bay decoration is essential for the development of PDI‐based semiconductors owing to their excellent photoelectric properties. Herein, four bis‐azabenz‐annulated PDIs (bis‐AzaBPDIs) are concisely synthesized in high yields through ultraviolet‐induced photocyclization, where the reaction processes including aldimine condensation, cyclization, and oxidative re‐aromatization are investigated. The optical characterizations and theoretical simulation reveal that the unique properties of the four bis‐AzaBPDIs are comparable to their parent PDI. Organic field effect transistors with compounds 2, 3, or 4 as active layers indicated that all compounds showed unipolar electron transport properties with the mobilities of 1.1×10−3, 5.8×10−4, and 8.5×10−6 cm2 V−1 s−1, respectively. These results suggest the great potential of bis‐AzaBPDIs as organic semiconductors. The easy preparation approach reported in this work would renew research interest in developing bis‐AzaBPDI‐based optoelectronic molecules.

The development of synthetic helical structures from achiral molecules and stimuli-responsive shape transformations are vital for biomimetic understanding and mechanical actuators. The stimulus regarded as the force to induce the...