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Lookup NU author(s): Dr Aleksey KozikovORCiD
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License (CC BY-NC-ND).
Copyright © 2024 the Author(s). Published by PNAS. We experimentally demonstrate the creation of defects in monolayer WSe2 via nanopillar imprinting and helium ion irradiation. Based on the first method, we realize atomically thin vertical tunneling light-emitting diodes based on WSe2 monolayers hosting quantum emitters at deterministically specified locations. We characterize these emitters by investigating the evolution of their emission spectra in external electric and magnetic fields, as well as by inducing electroluminescence at low temperatures. We identify qualitatively different types of quantum emitters and classify them according to the dominant electron–hole recombination paths, determined by the mechanisms of intervalley mixing occurring in fundamental conduction and/or valence subbands.
Author(s): Howarth J, Vaklinova K, Grzeszczyk M, Baldi G, Hague L, Potemski M, Novoselov KS, Kozikov A, Koperski M
Publication type: Article
Publication status: Published
Journal: Proceedings of the National Academy of Sciences of the United States of America
Year: 2024
Volume: 121
Issue: 23
Print publication date: 04/06/2024
Online publication date: 31/05/2024
Acceptance date: 29/04/2024
Date deposited: 19/06/2024
ISSN (print): 0027-8424
ISSN (electronic): 1091-6490
Publisher: National Academy of Sciences
URL: https://doi.org/10.1073/pnas.2401757121
DOI: 10.1073/pnas.2401757121
Data Access Statement: The data that support the findings of this study (52) are openly available at the following DOI: https://doi.org/10.58132/BPYO1C. All other data are included in the manuscript and/or SI Appendix [https://www.pnas.org/doi/10.1073/pnas.2401757121#supplementary-materials]
PubMed id: 38820004
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