Electronic properties of graphene nanoribbons with defects

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Autores: Rallis, Konstantinos|||0000-0003-0501-5554, Dimitrakis, Panagiotis, Karafydillis, Ioannis, Rubio Sola, Jose Antonio|||0000-0003-1625-1472, Sirakoulis, Georgios
Formato: artículo
Fecha de publicación:2021
País:España
Recursos:Universitat Politècnica de Catalunya (UPC)
Repositorio:UPCommons. Portal del coneixement obert de la UPC
Idioma:inglés
OAI Identifier:oai:upcommons.upc.edu:2117/360552
Acesso em linha:https://hdl.handle.net/2117/360552
https://dx.doi.org/10.1109/TNANO.2021.3055135
Access Level:acceso abierto
Palavra-chave:Nanoelectronics
Graphene
Defects
Graphene nanoribbons (GNRs)
Nanoscale devices
Non-equilibrium green ’s function (NEGF)
Nanoelectrònica
Grafè
Àrees temàtiques de la UPC::Enginyeria electrònica::Microelectrònica
Àrees temàtiques de la UPC::Enginyeria dels materials::Materials funcionals::Materials elèctrics i electrònics
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spelling Electronic properties of graphene nanoribbons with defectsRallis, Konstantinos|||0000-0003-0501-5554Dimitrakis, PanagiotisKarafydillis, IoannisRubio Sola, Jose Antonio|||0000-0003-1625-1472Sirakoulis, GeorgiosNanoelectronicsGrapheneDefectsGrapheneGraphene nanoribbons (GNRs)NanoelectronicsNanoscale devicesNon-equilibrium green ’s function (NEGF)NanoelectrònicaGrafèÀrees temàtiques de la UPC::Enginyeria electrònica::MicroelectrònicaÀrees temàtiques de la UPC::Enginyeria dels materials::Materials funcionals::Materials elèctrics i electrònics© 2021 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes,creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.Graphene nanoribbons (GNRs) are the most important emerging Graphene structures for nanoelectronic and sensor applications. GNRs with perfect lattices have been extensively studied, but fabricated GNRs contain lattice defects the effect of which on their electronic properties has not been studied extensively enough. In this paper, we apply the Non-Equilibrium Green's function (NEGF) method combined with tight-binding Hamiltonians to investigate the effect of lattice defects on the conductance of GNRs. We specifically study, butterfly shaped GNRs, which operate effectively as switches, and have been used in CMOS-like architectures. The cases of the most usual defects, namely the single and double vacancy have been analytically examined. The effect of these vacancies was computed by placing them in different regions and with various numbers on GNR nano-devices, namely edges, main body, contacts and narrow regions. The computation results are presented in the form of energy dispersion diagrams as well as diagrams of maximum conductance as a function of the number of lattice defects. We also present results on the defect tolerance of the butterfly shaped GNR devices.Peer Reviewed20212021-01-2720222022-01-25journal articlehttp://purl.org/coar/resource_type/c_6501AMhttp://purl.org/coar/version/c_ab4af688f83e57aainfo:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/2117/360552https://dx.doi.org/10.1109/TNANO.2021.3055135reponame:UPCommons. Portal del coneixement obert de la UPCinstname:Universitat Politècnica de Catalunya (UPC)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2info:eu-repo/semantics/openAccessoai:upcommons.upc.edu:2117/3605522026-05-27T15:37:01Z
dc.title.none.fl_str_mv Electronic properties of graphene nanoribbons with defects
title Electronic properties of graphene nanoribbons with defects
spellingShingle Electronic properties of graphene nanoribbons with defects
Rallis, Konstantinos|||0000-0003-0501-5554
Nanoelectronics
Graphene
Defects
Graphene
Graphene nanoribbons (GNRs)
Nanoelectronics
Nanoscale devices
Non-equilibrium green ’s function (NEGF)
Nanoelectrònica
Grafè
Àrees temàtiques de la UPC::Enginyeria electrònica::Microelectrònica
Àrees temàtiques de la UPC::Enginyeria dels materials::Materials funcionals::Materials elèctrics i electrònics
title_short Electronic properties of graphene nanoribbons with defects
title_full Electronic properties of graphene nanoribbons with defects
title_fullStr Electronic properties of graphene nanoribbons with defects
title_full_unstemmed Electronic properties of graphene nanoribbons with defects
title_sort Electronic properties of graphene nanoribbons with defects
dc.creator.none.fl_str_mv Rallis, Konstantinos|||0000-0003-0501-5554
Dimitrakis, Panagiotis
Karafydillis, Ioannis
Rubio Sola, Jose Antonio|||0000-0003-1625-1472
Sirakoulis, Georgios
author Rallis, Konstantinos|||0000-0003-0501-5554
author_facet Rallis, Konstantinos|||0000-0003-0501-5554
Dimitrakis, Panagiotis
Karafydillis, Ioannis
Rubio Sola, Jose Antonio|||0000-0003-1625-1472
Sirakoulis, Georgios
author_role author
author2 Dimitrakis, Panagiotis
Karafydillis, Ioannis
Rubio Sola, Jose Antonio|||0000-0003-1625-1472
Sirakoulis, Georgios
author2_role author
author
author
author
dc.subject.none.fl_str_mv Nanoelectronics
Graphene
Defects
Graphene
Graphene nanoribbons (GNRs)
Nanoelectronics
Nanoscale devices
Non-equilibrium green ’s function (NEGF)
Nanoelectrònica
Grafè
Àrees temàtiques de la UPC::Enginyeria electrònica::Microelectrònica
Àrees temàtiques de la UPC::Enginyeria dels materials::Materials funcionals::Materials elèctrics i electrònics
topic Nanoelectronics
Graphene
Defects
Graphene
Graphene nanoribbons (GNRs)
Nanoelectronics
Nanoscale devices
Non-equilibrium green ’s function (NEGF)
Nanoelectrònica
Grafè
Àrees temàtiques de la UPC::Enginyeria electrònica::Microelectrònica
Àrees temàtiques de la UPC::Enginyeria dels materials::Materials funcionals::Materials elèctrics i electrònics
description © 2021 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes,creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
publishDate 2021
dc.date.none.fl_str_mv 2021
2021-01-27
2022
2022-01-25
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
AM
http://purl.org/coar/version/c_ab4af688f83e57aa
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/2117/360552
https://dx.doi.org/10.1109/TNANO.2021.3055135
url https://hdl.handle.net/2117/360552
https://dx.doi.org/10.1109/TNANO.2021.3055135
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:UPCommons. Portal del coneixement obert de la UPC
instname:Universitat Politècnica de Catalunya (UPC)
instname_str Universitat Politècnica de Catalunya (UPC)
reponame_str UPCommons. Portal del coneixement obert de la UPC
collection UPCommons. Portal del coneixement obert de la UPC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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