Recent Progress in Donor-Acceptor Type Conjugated Polymers for Organic Field-effect Transistors

The recent progress in the design and synthesis of high-performance donor-acceptor conjugated polymeric semiconducting materials is reviewed from the perspective of multiscale structures. The multiscale of conjugated polymers is from the primary one-dimensional polymer molecular scale to the secondary polymer-chains interaction scale, and then to the tertiary polymer aggregate scale. This review focuses on the design and synthesis of polymer molecules, proposes new classification rules, and rationally summarizes the design strategies and modulation methods of polymers. We describe the recent progress from these three aspects:(1) the modification of π-conjugated backbone,(2) the evolution of the polymerization methods, and(3) the regulation of aggregate-state structure.