Abstract: The performances of a single layered photoreceptor which is a polymer matrix doped with DMTNF,DEH and Y-TiOPc or H₂Pc were studied.The results showed that xerographic quantum efficiency and sensitivity are a strongly dependent on CGM concentration.Xerographic quantum efficiency and sensitivity for positive charging increased with CGM concentration,while that for negative charging decreased with CGM concentration.Two kinds of photoreceptors show high sensitivity at near infrared wavelength range,suitable LD imaging.Y-TiOPc ohotoreceptor was most sensitive at 780 nm and half decay exposures were 0.588 μJ/cm² and 0.828 μJ/cm² for negative and positive charging,respectively.H₂Pc ohotoreceptor for negative charging was most sensitive at 820 nm and half decay exposures were 1.97 μJ/cm²,and that for positive charging at 800 nm and 1.50 μJ/cm²,respectively.

Key words: 1-(2,4,7-trinitro)fluoreny-1-2,6-dimethyl aniline, single-layered photoreceptor, xerographic performance