Single layer photoconductor

Fig. 2. Schematics of (a) single-layer photoreceptor, where the + signs represent the corona-deposited charge, D the photoconductor, and 1 the conductive substrate and (b), the CdS Sej (Katsuragawa) photoreceptor, where D represents the insulating layer, the CdS Sej, and I the...

Conceptually similar are single-layer photoreceptors such as PVK filled with a photoconductive pigment, such as IV,IV-di(3,5-dimethylphenyl)perylene-3,4,9,10-tetracarboxylic acid diimi.de (32), or a photoconductor containing a bisazo photoconductive pigment, a hole transporting molecule such as an indolinyl hydrazone derivative of carbazole shown in Fig. 5i, in a polyester binder (33). In practice, this photoconductor is charged positively even though both holes and electrons are mobile. 

P35 as photoconductors was also investigated in a single-layer device.67 A recent study also showed that polymer P35 displays a large optical-limiting response to a nanosecond laser pulse with satisfactory threshold value at 0.12J/cm2, and its behavior is superior to that for poly(4,4 -diethynyl-5,5 -bithiazole) organic polymer.60... 

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