A Boltzmann-weighted hopping model of charge transport in organic semicrystalline films

作者:Kwiatkowski Joe J*; Jimison Leslie H; Salleo Alberto; Spakowitz Andrew J
来源:Journal of Applied Physics, 2011, 109(11): 113720.
DOI:10.1063/1.3594686

摘要

We present a model of charge transport in polycrystalline electronic films, which considers details of the microscopic scale while simultaneously allowing realistically sized films to be simulated. We discuss the approximations and assumptions made by the model, and rationalize its application to thin films of directionally crystallized poly(3-hexylthiophene). In conjunction with experimental data, we use the model to characterize the effects of defects in these films. Our findings support the hypothesis that it is the directional crystallization of these films, rather than their defects, which causes anisotropic mobilities.

  • 出版日期2011-6-1