Abstract
Various aspects of charge carrier transport in solid disordered matrices are considered. It is shown that the field dependence of mobility is defined by correlation properties of the material, specifically, by the law of spatial decay of the correlation function energy–energy. The well known Poole–Frenkel dependence of mobility is observed in polar materials and is connected with an exceedingly slow decay of the correlation function in dipole glass. The true behavior of mobility in nonpolar materials differs from the Poole–Frenkel dependence but is barely distinguishable from it in a narrow range of fields studied experimentally. The charge transport in media with short-range and charged traps is considered. It is shown that the electrode roughness affects not only the efficiency of injection of charge carriers but their transport characteristics as well.
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Novikov, S.V. Charge Carrier Transport in Disordered Organic Matrices. Russian Journal of Electrochemistry 38, 165–172 (2002). https://doi.org/10.1023/A:1016868215356
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DOI: https://doi.org/10.1023/A:1016868215356