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DOI: 10.1021/acs.jpclett.4c00662
¤ OpenAccess: Hybrid
This work has “Hybrid” OA status. This means it is free under an open license in a toll-access journal.
Extremely Non-Equilibrium Hopping Transport and Photogeneration Efficiency in Organic Semiconductors: An Analytic Approach
Alexander Toropin,Libai Huang,V. R. Nikitenko,Oleg V. Prezhdo
Organic semiconductor
Non-equilibrium thermodynamics
Monte Carlo method
2024
An analytical model of highly nonequilibrium hopping transport of charge carriers in disordered organic semiconductors has been developed. In particular, the initial time interval is considered when transport is controlled by hops down in energy. The model is applied to the calculation of the separation probability of geminate pairs in a semiconductor with a Gaussian energy distribution of localized states. This probability determines the photogeneration efficiency. The temperature dependence of the separation probability is obtained and shown to be much weaker than predicted by the classical Onsager model, in agreement with experiment and Monte Carlo simulations. The field dependence is taken into account using a modified effective temperature method.
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“Extremely Non-Equilibrium Hopping Transport and Photogeneration Efficiency in Organic Semiconductors: An Analytic Approach” is a paper by Alexander Toropin Libai Huang V. R. Nikitenko Oleg V. Prezhdo published in 2024. It has an Open Access status of “hybrid”. You can read and download a PDF Full Text of this paper here.