Abstract: Single-layered xerographic photoreceptors were prepared by mixing ε-CuPc(CGM) and different hole transport materials(CTM) in the same polymer matrix,and their xerographic properties were investigated systematically and compared with that of the dual layered photoreceptors of the same materials. Monolayer photoreceptors formed by a mixture of ε-CuPc and DEH or ε-CuPc and ECH showed much better xerographic performances than other combinations,and even than their dual layer counterparts. This enhancement was assumedly yielded from easier charge injection from ε-CuPc to DEH or to ECH and higher charge injection efficiency when CGM and CTM coexist in a same matrix.

Key words: monolayer, OPC, injection efficiency