Role of Metal Centers in Tuning the Electronic Properties of Graphene-Based Conductive Interfaces

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dc.authoridTrzaskowski, Bartosz/0000-0003-2385-1476
dc.authoridKargul, Joanna/0000-0003-1410-1905
dc.authoridUnlu, Cumhur Gokhan/0000-0003-2554-5886
dc.authoridOsella, Silvio/0000-0001-8541-1914
dc.contributor.authorOsella, Silvio
dc.contributor.authorKiliszek, Malgorzata
dc.contributor.authorHarputlu, Ersan
dc.contributor.authorUnlu, Cumhur G.
dc.contributor.authorOcakoglu, Kasim
dc.contributor.authorTrzaskowski, Bartosz
dc.contributor.authorKargul, Joanna
dc.date.accessioned2025-03-17T12:25:55Z
dc.date.available2025-03-17T12:25:55Z
dc.date.issued2019
dc.departmentTarsus Üniversitesi
dc.description.abstractA major bottleneck in the fabrication of efficient bio-organic nanoelectronic devices resides in the strong charge recombination that is present at the different interfaces forming the complex system. An efficient way to overcome this bottleneck is to add a self-assembled monolayer (SAM) of molecules between the biological material and electrode that promotes an efficient direct electron transfer while minimizing wasteful processes of charge recombination. In this work, the presence of a pyrene-nitrilotriacetic acid layer carrying different metal centers as the SAM is physisorbed on graphene is fully described by means of electrochemical analysis, field-emission scanning electron microscopy, photoelectrochemical characterization, and theoretical calculations. Our multidisciplinary study reveals that the metal center holds the key role in the efficient electron transfer at the interface. While Ni2+ is responsible for the electron transfer from the SAM to graphene, Co2+ and Cu2+ force an opposite transfer from graphene to SAM. Moreover, since Cu2+ inhibits the electron transfer due to a strong charge recombination, Co2+ seems to be the transition metal of choice for the efficient electron transfer.
dc.description.sponsorshipPolish National Science Center [UMO-2015/19/P/ST4/03636 (POLONEZ 1)]; European Union's Horizon 2020 research, and the innovation program under the Marie Sklodowska-Curie grant [665778]; Polish National Center for Research and Development [DZP/POLTUR-1/50/2016, 5/POLTUR-1/2016]; Scientific and Technological Research Council of Turkey, TUBITAK [215M389]; Interdisciplinary Center for Mathematical and Computational Modelling (ICM, University of Warsaw) [G53-8, GA-69-26, GA7316]
dc.description.sponsorshipS.O. acknowledges the financial support from the Polish National Science Center (grant UMO-2015/19/P/ST4/03636 (POLONEZ 1)), the funding from the European Union's Horizon 2020 research, and the innovation program under the Marie Sklodowska-Curie grant agreement no. 665778. J.K. and M.K. acknowledge the financial support from the Polish National Center for Research and Development (grant no. DZP/POLTUR-1/50/2016, agreement no. 5/POLTUR-1/2016 to JK), while KO and EH are supported by the Scientific and Technological Research Council of Turkey, TUBITAK (grant no. 215M389 to K.O.) within the framework of 1st Bilateral Polish-Turkish POLTUR program. We thank Sebastian MaCkowski (Nicolaus Copernicus University, Poland) and his team for helpful discussions and collaboration. We are also grateful to Renata Bilewicz and Agnieszka Wieckowska (Faculty of Chemistry, University of Warsaw) for many helpful discussions and access to some of their electrochemical equipment important for this study. The calculations were partially performed at the Interdisciplinary Center for Mathematical and Computational Modelling (ICM, University of Warsaw) under the G53-8, GA-69-26, and GA7316 computational grants.
dc.identifier.doi10.1021/acs.jpcc.9b00170
dc.identifier.endpage8632
dc.identifier.issn1932-7447
dc.identifier.issn1932-7455
dc.identifier.issue14
dc.identifier.scopus2-s2.0-85064342513
dc.identifier.scopusqualityQ1
dc.identifier.startpage8623
dc.identifier.urihttps://doi.org/10.1021/acs.jpcc.9b00170
dc.identifier.urihttps://hdl.handle.net/20.500.13099/1924
dc.identifier.volume123
dc.identifier.wosWOS:000464768600016
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherAmer Chemical Soc
dc.relation.ispartofJournal of Physical Chemistry C
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.snmzKA_WOS_20250316
dc.subjectPhotosystem-I
dc.subjectFunctionalization
dc.subjectAdsorption
dc.subjectDeposition
dc.subjectMonolayers
dc.subjectCells
dc.titleRole of Metal Centers in Tuning the Electronic Properties of Graphene-Based Conductive Interfaces
dc.typeArticle

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