Band structure and device fabrication using thin-films of p-benzoquinonemonoimine zwitterion/P3HT blends

The electronic structure of some p-benzoquinonemonoimine zwitterion molecular films have a definite, although small, density of states evident at the Fermi- level as well as a nonzero inner potential and thus is very different from a true insulator. Photoelectron emission spectroscopy studies of polymer blends of three types of p-benzoquinonemonoimine zwitterion and regio-regular poly(3-hexylthiophene) (P3HT) thin-films provide evidence of changes in the molecular band structure due to interaction of such bands. Electric drain-source measurements done with these polymer blends show evidence of higher transport currents in comparison to P3HT polymer thin-films alone for one of the blends.