The nature of the plateau on the time-of-flight curves in molecularly doped polymers
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The transient current curves for a polar molecularly doped polymer were compared for the nearsurface and bulk generation of charge carriers. The horizontal plateau on the first curve was expected to transform into a tilted straight line under the quasiequilibrium transport conditions, but it did not. Instead, for bulk generation, the curve was a hyperbola, on which the slope decreased almost sevenfold during the existence of the plateau. This behavior points to nonequilibrium charge carrier transport. The appearance of a plateau in our case is explained by the effect of the defective surface layer, as indicated in our previous communications.
Keywordsnonequilibrium transport multiple trapping model near-surface or bulk irradiation
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- 4.A. P. Tyutnev, V. S. Saenko, E. D. Pozhidaev, and N. S. Kostyukov, Dielectric Properties of Polymers in Ionizing Radiation Fields (Nauka, Moscow, 2005) [in Russian].Google Scholar
- 5.P. M. Borsenberger and D. S. Weiss, Organic Photoreceptors for Xerography (Marcel Dekker, New York, 1998).Google Scholar
- 9.V. R. Nikitenko, H. von Seggern, and H. Bassler, J. Phys.: Condens. Matter 19, 136210 (2007).Google Scholar
- 10.A. Hummel and W. F. Schmidt, Rad. Res. Rev. 5, 199 (1974).Google Scholar
- 13.A. P. Tyutnev, Elektrokhimiya 38, 208 (2002).Google Scholar
- 22.A. P. Tyutnev, V. S. Saenko, E. D. Pozhidaev, and R. Sh. Ikhsanov, J. Phys.: Condens. Matter 20, 215219 (2008).Google Scholar