Hage, Fredrik S., Kapetanakis, Myron D., Idrobo, Juan-Carlos et al. (2 more authors) (2019) Atomic-Scale Spectroscopic Imaging of the Extreme-UV Optical Response of B- and N-Doped Graphene. ADVANCED FUNCTIONAL MATERIALS. 1901819. pp. 1-6. ISSN 1616-301X
Abstract
Abstract Substitutional doping of graphene by impurity atoms such as boron and nitrogen, followed by atom-by-atom manipulation via scanning transmission electron microscopy, can allow for accurate tailoring of its electronic structure, plasmonic response, and even the creation of single atom devices. Beyond the identification of individual dopant atoms by means of ?Z contrast? imaging, spectroscopic characterization is needed to understand the modifications induced in the electronic structure and plasmonic response. Here, atomic scale spectroscopic imaging in the extreme UV-frequency band is demonstrated. Characteristic and energy-loss-dependent contrast changes centered on individual dopant atoms are highlighted. These effects are attributed to local dopant-induced modifications of the electronic structure and are shown to be in excellent agreement with calculations of the associated densities of states.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2019 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim. This is an author-produced version of the published paper. Uploaded in accordance with the publisher’s self-archiving policy. Further copying may not be permitted; contact the publisher for details. |
Keywords: | density functional theory,doping,electron energy loss spectroscopy,graphene,scanning transmission electron microscopy |
Dates: |
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Institution: | The University of York |
Academic Units: | The University of York > Faculty of Sciences (York) > Physics (York) |
Depositing User: | Pure (York) |
Date Deposited: | 23 May 2019 14:10 |
Last Modified: | 21 Jan 2025 17:39 |
Published Version: | https://doi.org/10.1002/adfm.201901819 |
Status: | Published |
Refereed: | Yes |
Identification Number: | 10.1002/adfm.201901819 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:146519 |
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