  As high-performance organic semiconductors, {\pi}-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 cm2 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.
