Quantum confined acceptors and donors in InSe nanosheets

G. W. Mudd, A. Patanè, Z. R. Kudrynskyi, M. W. Fay, O. Makarovsky, L. Eaves, Z. D. Kovalyuk, V. Zólyomi, V. Falko

    Research output: Contribution to journalArticlepeer-review

    Abstract

    We report on the radiative recombination of photo-excited carriers bound at native donors and acceptors in exfoliated nanoflakes of nominally undoped rhombohedral γ-polytype InSe. The binding energies of these states are found to increase with the decrease in flake thickness, L. We model their dependence on L using a two-dimensional hydrogenic model for impurities and show that they are strongly sensitive to the position of the impurities within the nanolayer.

    Original languageEnglish
    Article number221909
    JournalApplied Physics Letters
    Volume105
    Issue number22
    DOIs
    Publication statusPublished - 1 Dec 2014

    Research Beacons, Institutes and Platforms

    • National Graphene Institute

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