High-field hopping mobility of polarons in disordered molecular solids. A Monte Carlo study

作者：Yu. N. Gartstein, E. M. Conwell · 发表于：Chemical Physics Letters · 年份：1994 · DOI：10.1016/0009-2614(93)e1346-i · 被引用次数：51 · 研究领域：Organic Electronics and Photovoltaics、Organic and Molecular Conductors Research、Chemical and Physical Properties of Materials

For a system subject to disorder of both diagonal (site energy variation) and off-diagonal (variation of intersite electron wave-function overlap) types we study the high-field mobility of charge carriers including polaronic effects. The elementary jump rate between sites is given by the classical expression due to Marcus and Holstein. We find there is a range of parameters where the dependence on field E of mobility μ is qualitatively similar to that found for the disorder model with Miller—Abrahams-type jump rate, including a region where In μ may be considered proportional to E12.