Unraveling the electronic properties of graphene with substitutional oxygen 2021 (English)In: Current Opinion in Chemical Engineering, E-ISSN 2211-3398, Vol. 8, no 4, article id 045035Article in journal (Refereed) Published

Abstract [en]

We show abrupt changes in the electronic properties of graphene with different types of binding to oxygen. Whereas oxygen bonded to the basal plane in the form of functional groups p-type dopes graphene, we prove that substitutional (i.e. in-plane) oxygen n-type dopes it. Moreover, we determine that impurity scattering potentials introduced by these substitutional atoms are notably larger than those of conventional donors, e.g. nitrogen. Both facts ultimately result in a conduction asymmetry in the system with holes being scattered more strongly than electrons. These findings provide essential insights into the impact of oxygen in carbon nanomaterials such as graphene oxide, oxidized carbon nanotubes or novel two-dimensional pi-conjugated organic frameworks, promising compounds for a wide range of applications including flexible electronics, catalysis, energy storage or biomedicine.

Place, publisher, year, edition, pages

IOP PUBLISHING LTD , 2021. Vol. 8, no 4, article id 045035

Keywords [en]

carbon allotropes; substitutional oxygen; graphene; oxygen implantation; doping; electronic properties

National Category

Materials Chemistry

Identifiers

URN: urn:nbn:se:liu:diva-180375DOI: 10.1088/2053-1583/ac28abISI: 000703270000001OAI: oai:DiVA.org:liu-180375DiVA, id: diva2:1603935

Note

Funding Agencies|Danish National Research FoundationDanmarks Grundforskningsfond [DNRF103]; EU Graphene Flagship Core 2 [785219]; EU Graphene Flagship Core 3 [785219]; Villum Young Investigator Program [19130]; Programma per Giovani Ricercatori-Rita Levi Montalcini 2017; NAS of Ukraine [0120U102265]; Provincial Council of Gipuzkoa [2021-CIEN-000070-01]; Basque Department of Education [PIBA-2020-1-0014]; VinnovaVinnova [201902878]; Spanish Ministry of Science and InnovationSpanish Government [PID2019-107338RB-C66]; European Union (EU) through Horizon 2020 (FET-Open project SPRING Grant) [863098]; MICINN Ramon y Cajal program [RYC2019-028443-I]

Available from: 2021-10-18 Created: 2021-10-18 Last updated: 2023-03-31

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Sahalianov, Ihor

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Laboratory of Organic ElectronicsFaculty of Science & Engineering

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