Orientation, Crystallization and Device Applications of Conjugated Polymers

Semiconducting polymer materials have attracted particular attention in organic electronics because of their ideal solution-processed ability for low cost, large area, flexible organic devices. But polymer semiconductors in devices are always fabricated by spin-coating in film state. In the films polymer molecules are highly disorder and there are full of grain boundaries and defects etc., so that the valuation of polymer semiconductor intrinsic properties and the fabrication of high performance devices are full of challenges. In this mini-account, we briefly summarize our recent studies on the alignment of polymer semiconductors by substrate inducing epitaxy and self-assembly etc., the valuation of polymer intrinsic properties by their nanocrystals as well as the applications of the aligned polymer films and nanocrystals for high performance optoelectronic devices.