Sequential Electron Transport and Vibrational Excitations in an Organic Molecule Coupled to Few-Layer Graphene Electrodes

Graphene electrodes are promising candidates to improvereproducibility and stability in molecular electronics through new electrode−molecule anchoring strategies. Here we report sequentialelectron transport in few-layer graphene transistors containing individualcurcuminoid-based molecules anchored t...

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Autores: Burzurí, Enrique, Island, Joshua O, Díaz Torres, Raúl, Fursina, Alexandra, González Campo, Arántzazu, Roubeau, Olivier, Teat, Simon J., Aliaga-Alcalde, Núria, Ruiz Sabín, Eliseo, van der Zant, Herre S. J.
Tipo de recurso: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2016
País:España
Institución:Universidad de Barcelona
Repositorio:Dipòsit Digital de la UB
OAI Identifier:oai:diposit.ub.edu:2445/114055
Acceso en línea:https://hdl.handle.net/2445/114055
Access Level:acceso abierto
Palabra clave:Electrònica molecular
Grafè
Elèctrodes
Molecular electronics
Graphene
Electrodes
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spelling Sequential Electron Transport and Vibrational Excitations in an Organic Molecule Coupled to Few-Layer Graphene ElectrodesBurzurí, EnriqueIsland, Joshua ODíaz Torres, RaúlFursina, AlexandraGonzález Campo, ArántzazuRoubeau, OlivierTeat, Simon J.Aliaga-Alcalde, NúriaRuiz Sabín, Eliseovan der Zant, Herre S. J.Electrònica molecularGrafèElèctrodesMolecular electronicsGrapheneElectrodesGraphene electrodes are promising candidates to improvereproducibility and stability in molecular electronics through new electrode−molecule anchoring strategies. Here we report sequentialelectron transport in few-layer graphene transistors containing individualcurcuminoid-based molecules anchored to the electrodes via π −π orbital bonding. We show the coexistence of inelastic co-tunneling excitations with single-electron transport physics due to an intermediate molecule−electrode coupling; we argue that an intermediate electron−phononcoupling is the origin of these vibrational-assisted excitations. Theseexperimental observations are complemented with density functionaltheory calculations to model electron transport and the interaction between electrons and vibrational modes of thecurcuminoid molecule. We find that the calculated vibrational modes of the molecule are in agreement with theexperimentally observed excitationsAmerican Chemical Society2016info:eu-repo/semantics/articleinfo:eu-repo/semantics/acceptedVersionapplication/pdfhttps://hdl.handle.net/2445/114055Articles publicats en revistes (Química Inorgànica i Orgànica)reponame:Dipòsit Digital de la UBinstname:Universidad de BarcelonaInglésVersió postprint del document publicat a: https://doi.org/10.1021/acsnano.5b07382ACS Nano, 2016, vol. 10, p. 2521-2527https://doi.org/10.1021/acsnano.5b07382info:eu-repo/grantAgreement/EC/FP7/618082(c) American Chemical Society , 2016info:eu-repo/semantics/openAccessoai:diposit.ub.edu:2445/1140552026-05-27T06:46:51Z
dc.title.none.fl_str_mv Sequential Electron Transport and Vibrational Excitations in an Organic Molecule Coupled to Few-Layer Graphene Electrodes
title Sequential Electron Transport and Vibrational Excitations in an Organic Molecule Coupled to Few-Layer Graphene Electrodes
spellingShingle Sequential Electron Transport and Vibrational Excitations in an Organic Molecule Coupled to Few-Layer Graphene Electrodes
Burzurí, Enrique
Electrònica molecular
Grafè
Elèctrodes
Molecular electronics
Graphene
Electrodes
title_short Sequential Electron Transport and Vibrational Excitations in an Organic Molecule Coupled to Few-Layer Graphene Electrodes
title_full Sequential Electron Transport and Vibrational Excitations in an Organic Molecule Coupled to Few-Layer Graphene Electrodes
title_fullStr Sequential Electron Transport and Vibrational Excitations in an Organic Molecule Coupled to Few-Layer Graphene Electrodes
title_full_unstemmed Sequential Electron Transport and Vibrational Excitations in an Organic Molecule Coupled to Few-Layer Graphene Electrodes
title_sort Sequential Electron Transport and Vibrational Excitations in an Organic Molecule Coupled to Few-Layer Graphene Electrodes
dc.creator.none.fl_str_mv Burzurí, Enrique
Island, Joshua O
Díaz Torres, Raúl
Fursina, Alexandra
González Campo, Arántzazu
Roubeau, Olivier
Teat, Simon J.
Aliaga-Alcalde, Núria
Ruiz Sabín, Eliseo
van der Zant, Herre S. J.
author Burzurí, Enrique
author_facet Burzurí, Enrique
Island, Joshua O
Díaz Torres, Raúl
Fursina, Alexandra
González Campo, Arántzazu
Roubeau, Olivier
Teat, Simon J.
Aliaga-Alcalde, Núria
Ruiz Sabín, Eliseo
van der Zant, Herre S. J.
author_role author
author2 Island, Joshua O
Díaz Torres, Raúl
Fursina, Alexandra
González Campo, Arántzazu
Roubeau, Olivier
Teat, Simon J.
Aliaga-Alcalde, Núria
Ruiz Sabín, Eliseo
van der Zant, Herre S. J.
author2_role author
author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Electrònica molecular
Grafè
Elèctrodes
Molecular electronics
Graphene
Electrodes
topic Electrònica molecular
Grafè
Elèctrodes
Molecular electronics
Graphene
Electrodes
description Graphene electrodes are promising candidates to improvereproducibility and stability in molecular electronics through new electrode−molecule anchoring strategies. Here we report sequentialelectron transport in few-layer graphene transistors containing individualcurcuminoid-based molecules anchored to the electrodes via π −π orbital bonding. We show the coexistence of inelastic co-tunneling excitations with single-electron transport physics due to an intermediate molecule−electrode coupling; we argue that an intermediate electron−phononcoupling is the origin of these vibrational-assisted excitations. Theseexperimental observations are complemented with density functionaltheory calculations to model electron transport and the interaction between electrons and vibrational modes of thecurcuminoid molecule. We find that the calculated vibrational modes of the molecule are in agreement with theexperimentally observed excitations
publishDate 2016
dc.date.none.fl_str_mv 2016
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/acceptedVersion
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/2445/114055
url https://hdl.handle.net/2445/114055
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Versió postprint del document publicat a: https://doi.org/10.1021/acsnano.5b07382
ACS Nano, 2016, vol. 10, p. 2521-2527
https://doi.org/10.1021/acsnano.5b07382
info:eu-repo/grantAgreement/EC/FP7/618082
dc.rights.none.fl_str_mv (c) American Chemical Society , 2016
info:eu-repo/semantics/openAccess
rights_invalid_str_mv (c) American Chemical Society , 2016
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv American Chemical Society
publisher.none.fl_str_mv American Chemical Society
dc.source.none.fl_str_mv Articles publicats en revistes (Química Inorgànica i Orgànica)
reponame:Dipòsit Digital de la UB
instname:Universidad de Barcelona
instname_str Universidad de Barcelona
reponame_str Dipòsit Digital de la UB
collection Dipòsit Digital de la UB
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,301603

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