A photoreceptor and method of forming the same is disclosed. A photoreceptor includes a substrate, an undercoat layer, and an imaging layer. The undercoat layer comprises a single, non-porous anodized aluminum layer that has an impedance of less than about 50 Kohm. The single, non-porous anodized aluminum layer may be used as the undercoat layer alone, or may be part of a multi-layered undercoat layer system that includes additional layers of other undercoat materials. The use of the non-porous anodized aluminum layer provides the photoreceptor with an extended effective life.