Electrostatic coupling of double layer self assembled quantum dots

ORAL

Abstract



The electron capture- and emission dynamics of two layers of self-assembled quantum dots in large distance to each other as well as to their reservoirs is studied by time resolved capacitance spectroscopy. The charge transfer rates of the individual layers are influenced by their mutual electrostatic coupling [1], resulting in a shift of the extracted binding energies and in a modified DLTS peak shapes. To model these effects, the corresponding system of rate equations is solved [2].

[1]: Luyken, R., PHYSICA E 2.1-4 (1998): 704-708

[2] Schnorr, L., Physical Review B 104.20 (2021): 205310.

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Presenters

  • Lukas Berg

    • Heinrich-Heine Universität
    • University of Dusseldorf

Authors

  • Lukas Berg

    • Heinrich-Heine Universität
    • University of Dusseldorf

  • Laurin Schnorr

    • Heinrich-Heine Universität

  • Thomas Heinzel

    • University of Dusseldorf
    • Heinrich-Heine Universität

  • Arne Ludwig

    • Ruhr-Universität Bochum
    • Ruhr Universität Bochum
    • Lehrstuhl fül Angewandte Festkörperphysik, Rhur-Universität Bochum, Bochum, Germany

  • Andreas D Wieck

    • Ruhr-Universität Bochum
    • Ruhr Universität Bochum
    • Lehrstuhl fül Angewandte Festkörperphysik, Rhur-Universität Bochum, Bochum, Germany