DataVXACS NanoPaper
journal article·2015-09-22

Electronic and Chemical Properties of Donor, Acceptor Centers in Graphene

Mykola Telychko, Pingo Mutombo, Pablo Merino, Prokop Hapala, Martin Ondráček, François C. Bocquet, Jessica Sforzini, Oleksandr Stetsovych, Martin Vondráček, Pavel Jelínek, Martin Švec

ACS Nano· Volume 9· Issue 9
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Source abstract

Abstract

Chemical doping is one of the most suitable ways of tuning the electronic properties of graphene and a promising candidate for a band gap opening. In this work we report a reliable and tunable method for preparation of high-quality boron and nitrogen co-doped graphene on silicon carbide substrate. We combine experimental (dAFM, STM, XPS, NEXAFS) and theoretical (total energy DFT and simulated STM) studies to analyze the structural, chemical, and electronic properties of the single-atom substitutional dopants in graphene. We show that chemical identification of boron and nitrogen substitutional defects can be achieved in the STM channel due to the quantum interference effect, arising due to the specific electronic structure of nitrogen dopant sites. Chemical reactivity of single boron and nitrogen dopants is analyzed using force-distance spectroscopy by means of dAFM.
Source: openalex_inverted_index · Quality: baseline

Research context

Nanomaterials

OpenAlex topics: Graphene research and applications · Molecular Junctions and Nanostructures · Carbon Nanotubes in Composites

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Institute of Physics, Academy of Sciences of the Czech Republic, Cukrovarnická 10, CZ 16200, Prague, Czech Republic

Faculty of Mathematics and Physics, Charles University, V Holešovičkách 2, Praha 8, Czech Republic

Max Planck Institute for Solid State Research, Heisenberg Strasse 1, 70569 Stuttgart, Germany

Peter Grünberg Institut (PGI-3), Forschungszentrum Jülich, 52425 Jülich, Germany

Jülich-Aachen Research Alliance (JARA); Fundamentals of Future Information Technology, 52425 Jülich, Germany

Institute of Physics, Academy of Sciences of the Czech Republic, Na Slovance 2, 10, CZ 18228, Prague, Czech Republic

Funding

Helmholtz Association · Ministerstva ?kolstv?, Ml?de?e A Telov?chovy · Czech Science Foundation

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