Organic photoreceptors for digital electrophotography

Liang-Bih Lin; Ralph H. Young; David S. Weiss; Michel F. Molaire; Samson A. Jenekhe; Paul M. Borsenberger

doi:10.1117/12.311099

18 June 1998 Organic photoreceptors for digital electrophotography

Liang-Bih Lin, Ralph H. Young, David S. Weiss, Michel F. Molaire, Samson A. Jenekhe, Paul M. Borsenberger

Proceedings Volume 3422, Input/Output and Imaging Technologies; (1998) https://doi.org/10.1117/12.311099
Event: Asia Pacific Symposium on Optoelectronics '98, 1998, Taipei, Taiwan

Abstract

We describe general requirements of organic photoreceptors used for electrophotographic applications. A typical organic photoreceptor consists of a charge generation layer (CGL) and a charge transport layer (CTL). The separation of the generation and transport functions has permitted the optimization of both layers in terms of sensitivity as well as device lifetime. Dual-layer and negative-charged/hole- transporting organic photoreceptors are of primary interest in device applications, which are the focus here. The spectral sensitivity, charge mobilities, and the general characteristics of charge acceptance and photoinduced discharge of these materials are discussed. In flash exposure of electrostatic latent image, reciprocity failures reduce the sensitivity of photoreceptors and are key issues associated with digital electrophotography. We discuss reciprocity failures relating to Langevin recombination and perhaps exciton-exciton annihilation at high exposure conditions. Other related issues such as latent image spread and fatigue are also discussed.

Citation Download Citation

Liang-Bih Lin, Ralph H. Young, David S. Weiss, Michel F. Molaire, Samson A. Jenekhe, and Paul M. Borsenberger "Organic photoreceptors for digital electrophotography", Proc. SPIE 3422, Input/Output and Imaging Technologies, (18 June 1998); https://doi.org/10.1117/12.311099

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