Organic small molecule semiconductors have many advantages over their polymer analogs. However, to fabricate organic semiconductor-based devices using solution processing, it is requisite to eliminate dewetting to ensure film uniformity -and desirable to assemble nanoscopic features with tailored macroscopic alignment without compromising their electronic properties. To this end, we recently developed a modular supramolecular approach where end-functionalized organic semiconductors are hydrogen bonded to polymer side chains. The resultant supramolecules based on a homopolymer can be readily solution processed into uniform film. By using a diblock copolymer (BCP)-based supramolecule, nanoscopic assemblies of organic semiconductors can also be obtained in bulk and in thin films. By tailoring the chain mobility and the small molecule crystallization, a rich library of assemblies of organic semiconductors can be obtained.              This modular supramolecular approach is a viable method for the fabrication of functional, nanostructured organic semiconductor films using solution processing.

Directed self-assemblies of organic semiconductor-containing supramolecule toward solution processible organoelectronic devices

244th National Meeting (2012)

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