[Macromolecules] Lamellarly Segregated Columnar Liquid Crystalline Alternating Copolymers with High Ambipolar Charge Mobilities
writer：Bin Mu, Xiangnan Hao, Tianshu Ma, Zhelin Zhang, Liang Wang, and Wei Tian*
keywords：Liquid Crystalline, Alternating Copolymers, High Ambipolar Charge Mobilities
source：期刊
specific source：Macromolecules 2023, 56, 4845-4854
Issue time：2023年
Segregated assembly in a π-conjugated donor-acceptor molecular system is imperative to create heterojunctions for optoelectronic applications. Here, we report lamellarly segregated columnar donor-acceptor arrays based on liquid crystalline alternating copolymers to afford high ambipolar and balanced charge mobilities. Especially, the rational molecular design renders the formation of a highly ordered hexagonal columnar superlattice based on the alternate lamellar structures. The ideal lamellar columnar heterojunction with regular distribution of donor?acceptor columns and remarkable intracolumnar order enables highly efficient and balanced hole and electron mobilities of 0.68 and 3.60 cm2 V-1 s-1, respectively. This work demonstrates the unique selforganization process of alternating copolymers containing two electronically active constituents and provides new insights into the design of ambipolar semiconducting soft materials for electronic and photovoltaic applications.
全文鏈接：https://doi.org/10.1021/acs.macromol.3c00095