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Proceedings Paper

Unoccupied density of states of commercially used organic photoreceptors doped with C60
Author(s): C. Schlebusch; J. Morenzin; Barbara M. Kessler; A. Scholl; Stefan Cramm; M. Biermann; Manfred Lutz; Wolfgang Eberhardt
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Paper Abstract

TiO-phthalocyanine and H2-phthalocyanine dispersions with polymeric binders are presently used as charge generation layers in xerography. The question arises whether an admixture of the electron acceptor C60 to the dispersion is able to inhibit the recombination of excited states and therefore enhance the charge-generation efficiency. We study the effect of an admixture of 5 percent C60 on the unoccupied density of states by x-ray absorption near edge spectroscopy using tuneable light from the Berlin electron storage ring for synchrotron radiation. Information on the occupied states is obtained by photoelectron spectroscopy with UV-radiation. The spectral features are identified by comparison with spectra from the single components and discussed. The influence of structural differences of H2-Pc on the optical properties is considered using optical transmission data.

Paper Details

Date Published: 1 November 1997
PDF: 7 pages
Proc. SPIE 3142, Fullerenes and Photonics IV, (1 November 1997); doi: 10.1117/12.279247
Show Author Affiliations
C. Schlebusch, Forschungszentrum Juelich GmbH (Germany)
J. Morenzin, Forschungszentrum Juelich GmbH (Germany)
Barbara M. Kessler, Forschungszentrum Juelich GmbH (Germany)
A. Scholl, Forschungszentrum Juelich GmbH (Germany)
Stefan Cramm, Forschungszentrum Juelich GmbH (Germany)
M. Biermann, AEG Elektrofotografie GmbH (Germany)
Manfred Lutz, AEG Elektrofotografie GmbH (Germany)
Wolfgang Eberhardt, Forschungszentrum Juelich GmbH (Germany)

Published in SPIE Proceedings Vol. 3142:
Fullerenes and Photonics IV
Zakya H. Kafafi, Editor(s)

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