The Library
Field-dependent band structure measurements in two-dimensional heterostructures
Tools
Nguyen, Paul V., Teutsch, Natalie C., Wilson, Nathan P., Kahn, Joshua, Xia, Xue, Graham, Abigail J., Kandyba, Viktor, Barinov, Alexei, Xu, Xiaodong, Cobden, David H. and Wilson, Neil R. (2021) Field-dependent band structure measurements in two-dimensional heterostructures. Nano Letters, 21 (24). pp. 1053-10537. doi:10.1021/acs.nanolett.1c04172 ISSN 1530-6984.
|
PDF
WRAP-Field-dependent-band-structure-measurements-two-dimensional-heterostructures-2022.pdf - Accepted Version - Requires a PDF viewer. Download (630Kb) | Preview |
Official URL: https://doi.org/10.1021/acs.nanolett.1c04172
Abstract
In electronic and optoelectronic devices made from van der Waals heterostructures, electric fields can induce substantial band structure changes which are crucial to device operation but cannot usually be directly measured. Here, we use spatially resolved angle-resolved photoemission spectroscopy to monitor changes in band alignment of the component layers, corresponding to band structure changes of the composite heterostructure system, that are produced by electrostatic gating. Our devices comprise graphene on a monolayer semiconductor, WSe2 or MoSe2, atop a boron nitride dielectric and a graphite gate. Applying a gate voltage creates an electric field that shifts the semiconductor bands relative to those in the graphene by up to 0.2 eV. The results can be understood in simple terms by assuming that the materials do not hybridize.
Item Type: | Journal Article | ||||||||
---|---|---|---|---|---|---|---|---|---|
Divisions: | Faculty of Science, Engineering and Medicine > Science > Physics | ||||||||
SWORD Depositor: | Library Publications Router | ||||||||
Journal or Publication Title: | Nano Letters | ||||||||
Publisher: | American Chemical Society | ||||||||
ISSN: | 1530-6984 | ||||||||
Official Date: | 22 December 2021 | ||||||||
Dates: |
|
||||||||
Volume: | 21 | ||||||||
Number: | 24 | ||||||||
Page Range: | pp. 1053-10537 | ||||||||
DOI: | 10.1021/acs.nanolett.1c04172 | ||||||||
Status: | Peer Reviewed | ||||||||
Publication Status: | Published | ||||||||
Reuse Statement (publisher, data, author rights): | “This document is the Accepted Manuscript version of a Published Work that appeared in final form in Nano Letters, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see [insert ACS Articles on Request author-directed link to Published Work, see ACS Articles on Request ].” | ||||||||
Access rights to Published version: | Restricted or Subscription Access | ||||||||
Date of first compliant deposit: | 31 January 2022 | ||||||||
Date of first compliant Open Access: | 1 December 2022 |
Request changes or add full text files to a record
Repository staff actions (login required)
View Item |
Downloads
Downloads per month over past year