Electrophotographic Properties of the Plate with a Polyvinylcarbazole Overlayer and a CdS-Resin Layer

概要

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The electrophotographic plate having a two-layer structure made up of a CdS-resin layer and a PVK overlayer is proposed. The effects of either dark resistivity or photo-sensitivity of the CdS-resin layer on factors which decisively affect electrophotographic characteristics such as the surface potential, the spectral response and the contrast voltage: are investigated. In case of negative corona charging, the external quantum efficiency attains a maximum value of 20% at a resistivity of 4 x 10^13 Ωcm, while it attains a maximum value of 7.5 % at a resistivity of 2 x 10^14Ωcm in the case of positive corona charging. The high efficiency for positive corona charging may be due to the use of CdS powder doped with Li and Cu.
社団法人応用物理学会の論文
1977-06-05