CO-CRYSTALLINE ORGANIC PHOTOCONDUCTORS AND HETEROGENEOUS COMPOSITIONS THEREOF

摘要

CO-CRYSTALLINE ORGANIC PHOTOCONDUCTORS AND HETEROGENEOUS COMPOSITIONS THEREOF Co-crystalline organic photoconductors comprising p-terphenyl doped with p-quaterphenyl are described. The co-crystalline photoconductors defined have characteristically greater (112) x-ray diffraction peak widths measured at half-maximum intensity compared to undoped p-terphenyl controls. Such photoconductors can be produced by forming a solution of p-terphenyl and p-quaterphenyl photoconductors in a common solvent and co-crystallizing the photoconductors therefrom. Heterogeneous photoconductive insulating compositions comprising a dispersion of these co-crystalline photoconductors in an electrically insulating binder can be applied to an electrically conducting support to provide an electrophotographic element with enhanced photoconductive speed.