论文标题
与空间相关的随机能量景观中的无定形有机和无机材料中的跳电荷运输
Hopping charge transport in amorphous organic and inorganic materials with spatially correlated random energy landscape
论文作者
论文摘要
讨论了电荷载体在非晶有机和无机材料中的跳跃运输的一般特性。我们考虑材料中随机能量景观在空间上密切相关的情况。这是具有状态高斯密度（DOS）的有机材料中非常典型的情况，可以在某些具有指数DOS的材料中实现。我们证明，即使在随机能量的相同相关函数的情况下，不同类型的DOS也会导致迁移率场依赖性的截然不同的功能形式。我们提供重要的论点，有利于局部定向顺序对有机材料中能量疾病的总幅度的重要贡献。提出了一种简单但有前途的电荷传输模型。
General properties of the hopping transport of charge carriers in amorphous organic and inorganic materials are discussed. We consider the case where the random energy landscape in the materials is strongly spatially correlated. This is a very typical situation in the organic materials having the Gaussian density of states (DOS) and may be realized in some materials with the exponential DOS. We demonstrate that the different type of DOS leads to a very different functional form of the mobility field dependence even in the case of the identical correlation function of random energy. We provide important arguments in favor of the significant contribution of the local orientational order to the total magnitude of the energetic disorder in organic materials. A simple but promising model of charge transport in highly anisotropic composites materials is suggested.
