论文标题
非本地电子偶联的有机半导体的一般电荷传输图片
A General Charge Transport Picture for Organic Semiconductors with Nonlocal Electron-Phonon Couplings
论文作者
论文摘要
负责使分子间转移积分波动的有机半导体中的非局部电子偶联已成为感兴趣的中心。几个不可调节的场景共存，以描述非局部电子音波耦合，例如语音辅助传输，瞬态定位和类似带状的传输。通过使用Matrix产品状态方法的荷斯坦 - 佩特尔斯模型的载流子迁移率的几乎精确的数值研究，我们找到了声音辅助的传输，瞬态定位和类似带状的状态，作为转移积分（$ v $）的函数（$ v $）的函数（$ v $），而非局限性电子传播性（$ΔV$），以及分析性的传播性（$ΔV$），是分析性的，是分析的行为，是分析的行为，是分析的，是分析的，是分析性的，是分析的。和一粒子光谱函数。我们还确定了一个“中间制度”，其中没有一个已建立的图片适用，并且在拟议的制度范式中发现，普遍认为的跳跃制度在非常有限的端。
The nonlocal electron-phonon couplings in organic semiconductors responsible for the fluctuation of intermolecular transfer integrals has been the center of interest recently. Several irreconcilable scenarios coexist for the description of the nonlocal electron-phonon coupling, such as phonon-assisted transport, transient localization, and band-like transport. Through a nearly exact numerical study for the carrier mobility of the Holstein-Peierls model using the matrix product states approach, we locate the phonon-assisted transport, transient localization and band-like regimes as a function of the transfer integral ($V$) and the nonlocal electron-phonon couplings ($ΔV$), and their distinct transport behaviors are analyzed by carrier mobility, mean free path, optical conductivity and one-particle spectral function. We also identify an "intermediate regime" where none of the established pictures applies, and the generally perceived hopping regime is found to be at a very limited end in the proposed regime paradigm.
