Anisotropic Hole Transport in a p-Quaterphenyl Molecular Crystal: Theory and SimulationClick to copy article linkArticle link copied!
- A. Ya Freidzon*A. Ya Freidzon*Email: [email protected]Federal Research Center “Crystallography and Photonics” Photochemistry Center, Russian Academy of Sciences, ul. Novatorov 7a, Moscow 119421, RussiaNational Research Nuclear University MEPhI (Moscow Engineering Physics Institute), Kashirskoye Shosse 31, Moscow 115409, RussiaMore by A. Ya Freidzon
- A. A. BagaturyantsA. A. BagaturyantsFederal Research Center “Crystallography and Photonics” Photochemistry Center, Russian Academy of Sciences, ul. Novatorov 7a, Moscow 119421, RussiaNational Research Nuclear University MEPhI (Moscow Engineering Physics Institute), Kashirskoye Shosse 31, Moscow 115409, RussiaMore by A. A. Bagaturyants
- Ya. V. BurdakovYa. V. BurdakovFederal Research Center “Crystallography and Photonics” Photochemistry Center, Russian Academy of Sciences, ul. Novatorov 7a, Moscow 119421, RussiaNational Research Nuclear University MEPhI (Moscow Engineering Physics Institute), Kashirskoye Shosse 31, Moscow 115409, RussiaMore by Ya. V. Burdakov
- V. R. NikitenkoV. R. NikitenkoNational Research Nuclear University MEPhI (Moscow Engineering Physics Institute), Kashirskoye Shosse 31, Moscow 115409, RussiaMore by V. R. Nikitenko
- V. A. PostnikovV. A. PostnikovFederal Research Center “Crystallography and Photonics” A.V. Shubnikov Institute of Crystallography, Russian Academy of Sciences, Leninsky prosp. 59, Moscow 119333, RussiaMore by V. A. Postnikov
Abstract

A computational procedure is proposed for predicting the charge hopping rate in organic semiconductor crystals. The procedure is verified using a p-quaterphenyl molecular crystal as the test system, in which the thermally activated hole mobility is relatively low, its hole states are localized, and, hence, charge transport is of hopping character. The hole mobility in p-quaterphenyl is simulated by the Monte Carlo method with the hopping probability governed by a Marcus-like rate constant. The microscopic parameters of the Marcus model have been calculated by ab initio multireference quantum chemical method (XMCQDPT/CASSCF). Molecular conformation and crystal environment effects on the Marcus hopping parameters are studied. It is found that different arrangements of monomers typical for the crystal structure provide different hopping parameters and, hence, different hole mobilities in different directions. Monte Carlo simulations of the hole mobility predict that the hole mobility attains its maximum in the [100] direction, where hopping occurs through parallel monomers at the closest distance, which is lower than 0.01 cm2/(V·s).
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This article is cited by 4 publications.
- Alexandra Freidzon, Nikita Dubinets, Alexander Bagaturyants. Theoretical Study of Charge-Transfer Exciplexes in Organic Photovoltaics. The Journal of Physical Chemistry A 2022, 126
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- V. A. Postnikov, N. I. Sorokina, M. S. Lyasnikova, G. A. Yurasik, A. A. Kulishov, T. A. Sorokin, O. V. Borshchev, E. A. Svidchenko, N. M. Surin. Crystals of para-Quaterphenyl and Its Trimethylsilyl Derivative. I: Growth from Solutions, Structure, and Crystal Chemical Analysis by the Hirschfeld Surface Method. Crystallography Reports 2024, 69
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- Ya. V. Burdakov, A. Yu. Saunina, H. Bässler, A. Köhler, V. R. Nikitenko. Modeling of charge transport in polymers with embedded crystallites. Physical Review B 2023, 108
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