Impact of momentum mismatch on 2D van der Waals tunnel field-effect transistors

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dc.contributor.author Cao, Jiang
dc.contributor.author Logoteta, Demetrio
dc.contributor.author Pala, Marco G.
dc.contributor.author Cresti, Alessandro
dc.date.accessioned 2018-01-09T15:06:28Z
dc.date.available 2018-01-09T15:06:28Z
dc.date.issued 2017-12-14
dc.identifier.citation Cao, J., Logoteta, D., Pala, M. G. and Cresti, A. (2017) ‘Impact of momentum mismatch on 2D van der Waals tunnel field-effect transistors’, Journal of Physics D: Applied Physics, In Press, doi: 10.1088/1361-6463/aaa1b6 en
dc.identifier.startpage 1 en
dc.identifier.endpage 12 en
dc.identifier.issn 0022-3727
dc.identifier.uri http://hdl.handle.net/10468/5252
dc.identifier.doi 10.1088/1361-6463/aaa1b6
dc.description.abstract We numerically investigate electron quantum transport in 2D van der Waals tunnel field-effect-transistors in the presence of lateral momentum mismatch induced by lattice mismatch or rotational misalignment between the two-dimensional layers. We show that a small momentum mismatch induces a threshold voltage shift without altering the subthreshold swing. On the contrary, a large momentum mismatch produces significant potential variations and ON-current reduction. Short-range scattering, such as that due to phonons or system edges, enables momentum variations, thus enhancing interlayer tunneling. The coupling of electrons with acoustic phonons is shown to increase the ON current without affecting the subthreshold swing. In the case of optical phonons, the ON-current increase is accompanied by a subthreshold swing degradation due to the inelastic nature of the scattering. en
dc.description.sponsorship Agence Nationale de la Recherche (project n. ANR-13-NANO0009-01 “NOODLES”) en
dc.format.mimetype application/pdf en
dc.language.iso en en
dc.publisher IOP Publishing en
dc.rights © 2017 IOP Publishing Ltd. This is an author-created, un-copyedited version of an article accepted for publication in J. Phys. D: Appl. Phys. The publisher is not responsible for any errors or omissions in this version of the manuscript or any version derived from it. The Version of Record is available online at https://doi.org/10.1088/1361-6463/aaa1b6. As the Version of Record of this article is published on a subscription basis, this Accepted Manuscript is available for reuse under a CC BY-NC-ND 3.0 licence after the 12 month embargo period. en
dc.rights.uri https://creativecommons.org/licences/by-nc-nd/3.0 en
dc.subject Tunnel field-effect-transistor en
dc.subject Non-equilibrium Green’s function en
dc.subject 2D transition metal dichalcogenides en
dc.subject van der Waals heterostructures en
dc.title Impact of momentum mismatch on 2D van der Waals tunnel field-effect transistors en
dc.type Article (peer-reviewed) en
dc.internal.authorcontactother Jiang Cao, Tyndall National Institute, University College Cork, Cork, Ireland. +353-21-490-3000 Email: jiang.cao@tyndall.ie en
dc.internal.availability Full text available en
dc.check.info Access to this article is restricted until 12 months after publication by request of the publisher. en
dc.check.date 2018-12-14
dc.description.version Accepted Version en
dc.contributor.funder Agence Nationale de la Recherche en
dc.description.status Peer reviewed en
dc.identifier.journaltitle Journal of Physics D: Applied Physics en
dc.internal.copyrightchecked !!CORA!! en


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© 2017 IOP Publishing Ltd. This is an author-created, un-copyedited version of an article accepted for publication in J. Phys. D: Appl. Phys. The publisher is not responsible for any errors or omissions in this version of the manuscript or any version derived from it. The Version of Record is available online at https://doi.org/10.1088/1361-6463/aaa1b6. As the Version of Record of this article is published on a subscription basis, this Accepted Manuscript is available for reuse under a CC BY-NC-ND 3.0 licence after the 12 month embargo period. Except where otherwise noted, this item's license is described as © 2017 IOP Publishing Ltd. This is an author-created, un-copyedited version of an article accepted for publication in J. Phys. D: Appl. Phys. The publisher is not responsible for any errors or omissions in this version of the manuscript or any version derived from it. The Version of Record is available online at https://doi.org/10.1088/1361-6463/aaa1b6. As the Version of Record of this article is published on a subscription basis, this Accepted Manuscript is available for reuse under a CC BY-NC-ND 3.0 licence after the 12 month embargo period.
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