OXYGEN DOPING MECHANISM OF SEMICRYSTALLINE POLY-P-PHENYLENE SULFIDE FOR NOVEL PHOTOCONDUCTIVE POLYMER-FILMS

The role of oxygen molecules in the marked increase of photoconductivi ty of poly-p-phenylene sulfide (PPS) films has been studied. Optical, photoconductive and structural studies of PPS films prepared with oxyg en doping and/or dedoping processes have clarified the carrier transpo rt mechanism. We have proposed a sensitive model wherein oxygen molecu les reversibly doped in the amorphous region of PPS films act as hoppi ng sites for carrier transport. By use of the oxygen-doped PPS film as a carrier transport layer of photoreceptors, the hole transport abili ty was improved as a result of doping.