Abstract: A series of diphenoquinone derivatives were synthesized and their molecular structures were confirmed by using CLT,IR,NMR and MS.The diphenoquinone derivative used as ETM was doped along with other components,e.g.,HTM and CGM,into a polymer matrix,to form a single-layered organic photoreceptor.It was found that photosensitivity was strongly dependent on ETM concentration.The half decay exposure firstly decreased with ETM’s concentration and then increased at higher ETM concentrations after having reached a minimum at 10%,and finally a plateau was reached after that.2,5,5′-tritert-butyl diphenoquione was found the best among other investigated diphenoquinone derivatives and the half decay exposure was 2.2 μJ/cm² at 780 nm wavelength.

Key words: diphenoquinone, organic photoreceptor, xerographic performance