Carrier density dependence of mobility in organic solids: A Monte Carlo simulation
Carrier density dependence of mobility in organic solids: A Monte Carlo simulation
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有机固体中迁移率的载流子密度依赖性：蒙特卡罗模拟
DOI：
10.1103/physrevb.75.153201
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发表时间：
2007-04
影响因子：
3.7
通讯作者：
Wu, C. Q.
中科院分区：
文献类型：
--
作者：
Hou, X. Y.;Zhou, Y. C.;Ding, X. M.;Zhao, J. M.;Zhou, J.;Wu, C. Q.
采用蒙特卡罗方法研究了无序有机材料中多载流子的跳跃过程，同时考虑了位排阻效应和库仑相互作用。发现高斯能量无序材料中的载流子迁移率严重依赖于载流子密度。在高载流子密度下，库仑相互作用被发现在具有低本征无序或在高温下的材料中降低载流子迁移率，并且在具有高本征无序或在低温下的材料中增强迁移率。
The multicarrier hopping process in disordered organic materials is studied via Monte Carlo simulations taking into consideration both the site exclusion effect and Coulomb interaction. The carrier mobility in materials with Gaussian energetic disorder is found to depend heavily on carrier density. At high carrier densities, the Coulomb interaction is found to reduce the carrier mobility in materials with low intrinsic disorder or at high temperatures, and to enhance the mobility in materials with high intrinsic disorder or at low temperatures.