Comparison of the electrophotographic properties of a family of hydrazone charge-transport molecules

J. Campbell Scott; Andrew Skumanich; M. D. Shattuck; Hai Nguyen

doi:10.1117/12.19815

1 July 1990 Comparison of the electrophotographic properties of a family of hydrazone charge-transport molecules

J. Campbell Scott, Andrew Skumanich, M. D. Shattuck, Hai Nguyen

Proceedings Volume 1253, Hard Copy and Printing Materials, Media, and Processes; (1990) https://doi.org/10.1117/12.19815
Event: Electronic Imaging: Advanced Devices and Systems, 1990, Santa Clara, CA, United States

Abstract

A study has been made of a family of six substituted arninobenzaldehyde-hydrazories in which molecular properties are related to electrophotographic function. The transport molecules are characterized by optical absorption, oxidation potential and strength of charge transfer complexation with the polymer binder. The evaluation of electrophotographic function includes charge transport mobility, charge injection efficiency from the generation layer and residual voltage. I lole mohilities in these materials differ by several orders of magnitude. The mobility is not (simply) correlated with any molecular electronic property such as oxidation potential or absorption wavelength. The most relevant molecular parameter appears to be number of phenyl substituents on the amine and hydrazine nitrogen atoms. The polymer binder also afTects the mobility. A solid solution in of DElI in polyarylate, which is a weak electron acceptor and forms a weak charge transfer complex with the donor transport molecule, has a lower activation energy for transport than l)El I in polycarhonate which forms no such complex. The charge injection efficiency has been related, in the past, to the oxidation potential (E0) ol the transport molecule. It is shown here that E0 correlates better with the residual voltage, and a simple model is developed to explain the relationship.

Citation Download Citation

J. Campbell Scott, Andrew Skumanich, M. D. Shattuck, and Hai Nguyen "Comparison of the electrophotographic properties of a family of hydrazone charge-transport molecules", Proc. SPIE 1253, Hard Copy and Printing Materials, Media, and Processes, (1 July 1990); https://doi.org/10.1117/12.19815

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