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Showing 1–5 of 5 results
Advanced filters: Author: Wiebke Bennecke Clear advanced filters

  • Understanding excitonic optical excitations is integral to improving optoelectronic and photovoltaic semiconductor devices. Here, Bennecke et al. use photoemission exciton tomography to unravel the multiorbital electron and hole contributions of entangled excitonic states in the prototypical organic semiconductor C60.

    • Wiebke Bennecke
    • Andreas Windischbacher
    • Stefan Mathias
    ResearchOpen Access
    Nature Communications
    Volume: 15, P: 1-10

  • The feasibility of Floquet engineering in graphene has been called into question due to its fast decoherence processes. Measurements of graphene’s photoemission spectrum now support the generation of Floquet states in this material.

    • Marco Merboldt
    • Michael Schüler
    • Stefan Mathias
    ResearchOpen Access
    Nature Physics
    Volume: 21, P: 1093-1099

  • Dark-field momentum microscopy makes it possible to spatio-temporally and spatio-spectrally resolve the dark-exciton dynamics in a twisted transition metal dichalcogenide heterostructure.

    • David Schmitt
    • Jan Philipp Bange
    • Marcel Reutzel
    Research
    Nature Photonics
    Volume: 19, P: 187-194

  • Multidimensional time- and angle-resolved photoelectron spectroscopy is used to determine the interlayer exciton formation process, reveal a direct hallmark of the superlattice moiré modification, and reconstruct the real-space wavefunction distribution.

    • David Schmitt
    • Jan Philipp Bange
    • Stefan Mathias
    Research
    Nature
    Volume: 608, P: 499-503