Photoconductive OPS-Polyimides and Their Applications for Opto-Electronic Devices (I) Zerographic Photoreceptors

Abstract

OPS-Polyimides (OPS-PI), which are compoesd of a series of thiophenylene moieties, -(C₆H₄S)_n- oligo-p-phenylene sulfide (OPS), and imide groups, have been designed on the base of our proposed photoconduction mechanism and showed a high sensitivity. OPS-PI consist of two different functional groups. An imide gruop in OPS-PI generates carriers by absorbing the visible light. And carriers are transported in the paths formed by OPS segments. Carrier transport mechanism will be discussed on the band-conduction model. The sensitizing in the near infrared region by H₂Pc doping is proposed on the base of the energy diagram. The application of OPS-PI to xerographic photoreceptors is shown including doped OPS-PIs.