Show simple item record

Files in this item


Item metadata

dc.contributor.authorMichnowicz, Tomasz
dc.contributor.authorBorca, Bogdana
dc.contributor.authorPétuya, Rémi
dc.contributor.authorSchendel, Verena
dc.contributor.authorPristl, Marcel
dc.contributor.authorPentegov, Ivan
dc.contributor.authorKraft, Ulrike
dc.contributor.authorKlauk, Hagen
dc.contributor.authorWahl, Peter
dc.contributor.authorMutombo, Pingo
dc.contributor.authorJelínek, Pavel
dc.contributor.authorArnau, Andrés
dc.contributor.authorSchlickum, Uta
dc.contributor.authorKern, Klaus
dc.identifier.citationMichnowicz , T , Borca , B , Pétuya , R , Schendel , V , Pristl , M , Pentegov , I , Kraft , U , Klauk , H , Wahl , P , Mutombo , P , Jelínek , P , Arnau , A , Schlickum , U & Kern , K 2020 , ' Controlling single molecule conductance by a locally induced chemical reaction on individual thiophene units ' , Angewandte Chemie International Edition , vol. In press .
dc.identifier.otherPURE: 266264419
dc.identifier.otherPURE UUID: 075c637a-bc2e-44eb-a088-380bef132439
dc.identifier.otherRIS: urn:31FB3C0C7B18384FECF80899D9FD08A1
dc.identifier.otherScopus: 85079713656
dc.identifier.otherORCID: /0000-0002-8635-1519/work/70919916
dc.identifier.otherWOS: 000513999600001
dc.descriptionThe authors acknowledge the Emmy-Noether-Program of the Deutsche Forschungsgemeinschaft, the SFB 767, Core Program PN19-03 (contract number 21 N/08.02.2019) founded by the Romanian Ministry of Research and Innovation, Basque Departamento de Universidades e Investigación (grant no. IT-756-13), the Spanish Ministerio de Economía y Competitividad (grant no. FIS2013-48286-C2-8752-P and FIS2016-75862-P) andthe Operational Programme Research, Development and Education financed by European Structural and Investment Funds and the Czech Ministry of Education, Youth and Sports (Project No. SOLID21 CZ.02.1.01/0.0/0.0/16_019/0000760).en
dc.description.abstractAmong the prerequisites for the progress of single‐molecule‐based electronic devices are a better understanding of the electronic properties at the individual molecular level and the development of methods to tune the charge transport through molecular junctions. Scanning tunneling microscopy (STM) is an ideal tool not only for the characterization, but also for the manipulation of single atoms and molecules on surfaces. The conductance through a single molecule can be measured by contacting the molecule with atomic precision and forming a molecular bridge between the metallic STM tip electrode and the metallic surface electrode. The parameters affecting the conductance are mainly related to their electronic structure and to the coupling to the metallic electrodes. Here, the experimental and theoretical analyses are focused on single tetracenothiophene molecules and demonstrate that an in situ‐induced direct desulfurization reaction of the thiophene moiety strongly improves the molecular anchoring by forming covalent bonds between molecular carbon and copper surface atoms. This bond formation leads to an increase of the conductance by about 50 % compared to the initial state.
dc.relation.ispartofAngewandte Chemie International Editionen
dc.rightsCopyright © 2020 The Authors. Published by Wiley-VCH Verlag GmbH & Co. KGaA. This is an open access article under the terms of the Creative Commons Attribution‐NonCommercial‐NoDerivs License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non‐commercial and no modifications or adaptations are made.en
dc.subjectSingle-molecule conductanceen
dc.subjectCovalent-bond formationen
dc.subjectStrong anchoringen
dc.subjectQC Physicsen
dc.titleControlling single molecule conductance by a locally induced chemical reaction on individual thiophene unitsen
dc.typeJournal articleen
dc.description.versionPublisher PDFen
dc.contributor.institutionUniversity of St Andrews.School of Physics and Astronomyen
dc.contributor.institutionUniversity of St Andrews.Centre for Designer Quantum Materialsen
dc.contributor.institutionUniversity of St Andrews.Condensed Matter Physicsen
dc.description.statusPeer revieweden

This item appears in the following Collection(s)

Show simple item record