Organic thin-film transistor constructs the headstone of flexible electronic world such as conformable sensor arrays and flexible active-matrix displays. With solution-processed methods, it forges ahead toward large-area, low-cost manufacturing goals. As an indispensable complement to traditional silicon-based transistors, organic thin-film field-effect transistors have made great progress in materials, performance, bending capacity, and integrated circuits in recent few years. Flexible transist