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Showing 1–4 of 4 results
Advanced filters: Author: F. Vialla Clear advanced filters

  • The detection of low-energy photons may be enabled by devices that make use of the excess thermal energy from photoexcited carriers as a result of light absorption. Here the authors demonstrate a vertical graphene-WSe2-graphene heterostructure that takes advantage of the photo-thermionic effect.

    • M. Massicotte
    • P. Schmidt
    • F. H. L. Koppens
    ResearchOpen Access
    Nature Communications
    Volume: 7, P: 1-7

  • Photodetectors based on graphene/WSe2/graphene heterostructures combine an ultrafast photoresponse with high quantum efficiency.

    • M. Massicotte
    • P. Schmidt
    • F. H. L. Koppens
    Research
    Nature Nanotechnology
    Volume: 11, P: 42-46

  • Graphene grain boundaries and charge inhomogeneities limit its electronic properties. Here the authors combine scanning near-field optical microscopy with electrical read-out to image these defects at the nanoscale under an encapsulation layer, and show that charges build up along the edges of the flake.

    • Achim Woessner
    • Pablo Alonso-González
    • Frank H. L. Koppens
    ResearchOpen Access
    Nature Communications
    Volume: 7, P: 1-7