Hole photogeneration in dual-layer photoreceptors

Michel F. Molaire; Edward H. Magin; Paul M. Borsenberger

doi:10.1117/12.626570

9 October 1997 Hole photogeneration in dual-layer photoreceptors

Michel F. Molaire, Edward H. Magin, Paul M. Borsenberger

Proceedings Volume 3144, Xerographic Photoreceptors and Organic Photorefractive Materials II; (1997) https://doi.org/10.1117/12.626570
Event: Optical Science, Engineering and Instrumentation '97, 1997, San Diego, CA, United States

Abstract

Hole photogeneration efficiencies have been measured in a series of dual layer photoreceptors containing generation layers of a fluorinated titanylphthalocyanine (TiO(F4-Pc)). The transport layers contained different arylamine (AA) derivatives in a polycarbonate. The AA molcules were selected for differences in oxidation potential. The efficiencies are independent of wavelength and strongly dependent on the field and the composition of the transport layer. At high fields and high AA concentrations, the efficiencies approach 0.80. The results are described by a surface-enhanced exciton dissociation argument. The argument is premised on the assumption that the absorption of a photon creates a bound electron-hole pair, which diffuses to the surface of the pigment particle, where it either recombines or dissociates into a free electron hole pair through an interaction of the donor component of the transport layer. The dissociation efficiency increases with increasing oxidation potential of the donor component. The field dependence of the dissociation process is attributed to geminate recombination and described by a theory due to Onsager. Keywords: dual layer photoreceptors, geminate recombination, free carrier photogeneration

Citation Download Citation

Michel F. Molaire, Edward H. Magin, and Paul M. Borsenberger "Hole photogeneration in dual-layer photoreceptors", Proc. SPIE 3144, Xerographic Photoreceptors and Organic Photorefractive Materials II, (9 October 1997); https://doi.org/10.1117/12.626570

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available