Unoccupied density of states of commercially used organic photoreceptors doped with C60

C. Schlebusch; J. Morenzin; Barbara M. Kessler; A. Scholl; Stefan Cramm; M. Biermann; Manfred Lutz; Wolfgang Eberhardt

doi:10.1117/12.279247

1 November 1997 Unoccupied density of states of commercially used organic photoreceptors doped with C₆₀

C. Schlebusch, J. Morenzin, Barbara M. Kessler, A. Scholl, Stefan Cramm, M. Biermann, Manfred Lutz, Wolfgang Eberhardt

Proceedings Volume 3142, Fullerenes and Photonics IV; (1997) https://doi.org/10.1117/12.279247
Event: Optical Science, Engineering and Instrumentation '97, 1997, San Diego, CA, United States

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.

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C. Schlebusch, J. Morenzin, Barbara M. Kessler, A. Scholl, Stefan Cramm, M. Biermann, Manfred Lutz, and Wolfgang Eberhardt "Unoccupied density of states of commercially used organic photoreceptors doped with C₆₀", Proc. SPIE 3142, Fullerenes and Photonics IV, (1 November 1997); https://doi.org/10.1117/12.279247

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