Space-Charge-Perturbed Xerographic Discharge of Photoreceptors

Abstract

The effect of space-charge perturbation due to either trapped or free charge on the xerographic discharge of photoreceptors has been studied. In the case of trapped charge, the xerographic gain vs field curves can be analyzed to yield estimates for the carrier range and this is illustrated by measurements on amorphous selenium. The achievement of spacecharge-limited xerographic discharges in Se: poly(N-vinyl carbazole) layered structures will also be described. In this case it is shown that measurements of parameters which in the past have been viewed only from an applications viewpoint, e. g., contrast potential, can be useful in probing charge transport in appropriate solids.

Influence of bimolecular recombination on xerographic discharge process

“…8,17 The presented above model shows that even if the mobile photogenerated charge carriers are not trapped, the photoconducting layer may be not completely discharged under permanent illumination. 8,17 The presented above model shows that even if the mobile photogenerated charge carriers are not trapped, the photoconducting layer may be not completely discharged under permanent illumination.…”

“…7,8,17 In this paper the decay of the surface potential is analyzed for the case when charge carriers of only one sign are mobile while the charge carriers of opposite sign remain in the illuminated region, what corresponds to the case ͑2b͒. 7,8,17 In this paper the decay of the surface potential is analyzed for the case when charge carriers of only one sign are mobile while the charge carriers of opposite sign remain in the illuminated region, what corresponds to the case ͑2b͒.…”