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相关论文: Validity of Transport Energy in Disordered Organic…

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We have investigated the charge carrier transport in organic molecular semiconductors. It has been found that mobility is a function of electric field and temperature due to hopping conduction. Several theoretical models for charge…

材料科学 · 物理学 2007-05-23 Ajit Kumar Mahapatro , Subhasis Ghosh

Effect of energetic disorder on charge carrier transport in organic materials has been reexamined. A reliable method for mobility calculation and subsequent evaluation of relevant disorder parameters has been discussed. This method is well…

无序系统与神经网络 · 物理学 2008-09-30 S. V. Novikov , A. V. Vannikov

For hopping transport in disordered materials, the mobility of charge carriers is strongly dependent on temperature and the electric field. Our numerical study shows that both the energy distribution and the mobility of charge carriers in…

无序系统与神经网络 · 物理学 2016-10-26 F. Jansson , S. D. Baranovskii , F. Gebhard , R. Österbacka

The charge transport in some organic semiconductors demonstrates nonlinear properties and further universal power-law scaling with both bias and temperature. The physical origin of this behavior is investigated here using variable range…

介观与纳米尺度物理 · 物理学 2014-12-16 Ling Li , Nianduan Lu , Ming Liu

The hopping transport of charge carries in 3-dimensional disordered semiconductors is analyzed in this work. It is assumed that the density of localized states is a decreasing function of energy and contribution of thermoactivated jumps…

无序系统与神经网络 · 物理学 2007-05-23 D. V. Nikolaenkov , V. I. Arkhipov , V. R. Nikitenko

Charge transport in disordered organic semiconductors occurs by hopping of charge carriers between localized sites that are randomly distributed in a strongly energy dependent density of states. Extracting disorder and hopping parameters…

材料科学 · 物理学 2021-03-08 Tanvi Upreti , Yuming Wang , Huotian Zhang , Dorothea Scheunemann , Feng Gao , Martijn Kemerink

We have examined the electrical transport in disordered molecular solids. It has been found that mobility is a function of electric field and temperature due to hopping conduction. Several theoretical models for charge transport in…

材料科学 · 物理学 2007-05-23 Ajit Kumar Mahapatro , Subhasis Ghosh

Transport in disordered systems often occurs via the variable range hopping (VRH) in the dilute carrier density limit, where electrons hop between randomly distributed localized levels. We study the nonequilibrium transport by a uniform DC…

无序系统与神经网络 · 物理学 2025-09-24 Kunal Mozumdar , Herbert F. Fotso , Jong E. Han

We present a unified calculation method for variable range hopping transport with a varying charge concentration and a varying applied electrical field. We demonstrate that the major differences between the transport properties measured at…

统计力学 · 物理学 2007-05-23 Yohai Roichman , Nir Tessler

General properties of charge carrier transport in disordered organic materials are discussed. Spatial correlation between energies of transport sites determines the form of the drift mobility field dependence. Particular kind of spatial…

材料科学 · 物理学 2013-03-21 S. V. Novikov

General properties of the transport of charge carriers (electrons and holes) in disordered organic materials are discussed. It was demonstrated that the dominant part of the total energetic disorder in organic material is usually provided…

材料科学 · 物理学 2013-03-20 S. V. Novikov

Understanding the charge carrier transport in the disordered organic molecular semiconductors is a fascinating and still unresolved problem in modern condensed-matter physics, yet has an extremely important bearing on their application in…

材料科学 · 物理学 2007-05-23 Ajit Kumar Mahapatro , Subhasis Ghosh

An exact analytical theory is developed for calculating the diffusion coefficient of charge carriers in strongly anisotropic disordered solids with one-dimensional hopping transport mode for any dependence of the hopping rates on space and…

无序系统与神经网络 · 物理学 2012-01-10 A. V. Nenashev , F. Jansson , S. D. Baranovskii , R. Österbacka , A. V. Dvurechenskii , F. Gebhard

Energetic disorder in disordered organic solids has been found to alter their physical parameters. Here, we have demonstrated, by means of Monte-Carlo simulation and experiments, that the electroluminescence (EL) spectrum is dependent on…

材料科学 · 物理学 2014-10-06 Arunandan Kumar , Priyanka Tyagi , Ritu Srivastava , M. N. Kamalasanan

We develop a temperature dependent theory for singlet exciton hopping transport in disordered semiconductors. It draws on the transport level concept within a F\"orster transfer model and bridges the gap in describing the transition from…

介观与纳米尺度物理 · 物理学 2018-08-22 Mehdi Ansari-Rad , Stavros Athanasopoulos

We investigate theoretically the effect of a finite electric field on the resistivity of a disordered one-dimensional system in the variable-range hopping regime. We find that at low fields the transport is inhibited by rare fluctuations in…

介观与纳米尺度物理 · 物理学 2007-05-23 M. M. Fogler , R. S. Kelley

The charge carrier transport in metal phthallocyanine based disordered thin films has been investigated. Charge carrier mobility in these disordered thin films strongly depends on the electric field and temperature due to hopping…

无序系统与神经网络 · 物理学 2015-06-25 Ajit Kumar Mahapatro , Subhasis Ghosh

Temperature dependent transport of disordered electronic systems is examined in the presence of strong correlations. In contrast to what is assumed in Fermi liquid approaches, finite temperature behavior in this regime proves largely…

强关联电子 · 物理学 2007-05-23 M. C. O. Aguiar , E. Miranda , V. Dobrosavljevic , E. Abrahams , G. Kotliar

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…

材料科学 · 物理学 2020-02-24 S. V. Novikov

We study the temperature dependence of the conductivity of the 2D electronic solid. In realistic samples, a domain structure forms in the solid and each domain randomly orients in the absence of the in-plane field. At higher temperature,…

介观与纳米尺度物理 · 物理学 2009-11-10 Shi-Jie Yang , Yue Yu
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