Long-range ordered C60-based polymer crystals for high-performance conducting materials.

Crystal is a long-range ordered structure formed by the periodic arrangement of atoms,ions,or molecules in confined space.The ordered arrangement of building blocks in crystals would give rise to unique optical,mechanical,thermal conductivity and electrical properties,driving their widespread application in various fields[1,2].The preparation of polymer crystals with conductive proper-ties has been an important subject in the field of organic electron-ics for the fundamental structure-property study and realizing superior optoelectronic performances due to their intrinsically high charge transport ability and electro-optical conversion effi-ciency along the high conjugation-delocalized polymer chains[3-6].However,it remains a big challenge for assembling polymer chains into an ordered crystal structure because of their large molecular weight and polydispersity,complex molecular struc-tures as well as the uncontrollable multiple energy barriers[7].