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Transfer of energy or charge between quasi-zero-dimensional nanostructures

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    0465874 - FZÚ 2017 RIV US eng J - Journal Article
    Král, Karel - Menšík, Miroslav
    Transfer of energy or charge between quasi-zero-dimensional nanostructures.
    Journal of Computational and Theoretical Transport. Roč. 45, č. 4 (2016), s. 243-255. ISSN 2332-4309. E-ISSN 2332-4325
    R&D Projects: GA ČR(CZ) GA14-05053S; GA MŠMT(CZ) LD14011; GA MŠMT LH12236
    Institutional support: RVO:68378271 ; RVO:61389013
    Keywords : charge transfer * electron-phonon interaction * energy transfer * nanostructures * quantum dots
    Subject RIV: BM - Solid Matter Physics ; Magnetism; CD - Macromolecular Chemistry (UMCH-V)
    Impact factor: 0.600, year: 2016

    Transfer rate formula is presented, for irreversible transfer of electronic excitation energy, or of electronic charge, between quasi-zero-dimensional (Q0D) nanostructures. The phonon-assisted transfer rate formula is based on quantum kinetic equations. The formula deals with the transfer of excitons, or electronic charges, as it depends on temperature, local excitation energies and also on the interaction of the electronic systems with the phonons. The approximation of incoherent transfer is considered. The non-adiabatic property of the lectrons coupling to the lattice vibrations is said to be responsible for the considered transfer mechanism. The approach is expected to be applicable to the so-called uphill or downhill transfers. Theoretical nalysis is illustrated by computations of exciton transfer between two quantum dots. The applicability to exciton and/or charge transfer in polymers is mentioned.

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