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Combining Nitrogen Doping and Vacancies for Tunable Resonant States in Graphite.
Demba, Demba; Karn, Abhishek; Chacon, Cyril; Girard, Yann; Repain, Vincent; Bellec, Amandine; Amara, Hakim; Lang, Philippe; Lagoute, Jérôme.
Afiliación
  • Demba D; Université Paris Cité, Laboratoire Matériaux et Phénomènes Quantiques, CNRS, F-75013, Paris, France.
  • Karn A; Université Paris Cité, Laboratoire Matériaux et Phénomènes Quantiques, CNRS, F-75013, Paris, France.
  • Chacon C; Université Paris Cité, Laboratoire Matériaux et Phénomènes Quantiques, CNRS, F-75013, Paris, France.
  • Girard Y; Université Paris Cité, Laboratoire Matériaux et Phénomènes Quantiques, CNRS, F-75013, Paris, France.
  • Repain V; Université Paris Cité, Laboratoire Matériaux et Phénomènes Quantiques, CNRS, F-75013, Paris, France.
  • Bellec A; Université Paris Cité, Laboratoire Matériaux et Phénomènes Quantiques, CNRS, F-75013, Paris, France.
  • Amara H; Université Paris Cité, Laboratoire Matériaux et Phénomènes Quantiques, CNRS, F-75013, Paris, France.
  • Lang P; Laboratoire d'Etude des Microstructures, ONERA-CNRS, UMR104, Université Paris-Saclay, BP 72, Châtillon Cedex, 92322, France.
  • Lagoute J; Université Paris Cité, ITODYS, CNRS, UMR 7086, 15 rue Jean-Antoine de Baïf, 75205, Paris Cedex 13, France.
Chemphyschem ; 25(21): e202400221, 2024 Nov 04.
Article en En | MEDLINE | ID: mdl-39121096
ABSTRACT
We investigate the combination of nitrogen doping and vacancies in highly ordered pyrolytic graphite (HOPG), to engineer defect sites with adjustable electronic properties. We combine scanning tunneling microscopy and spectroscopy and density functional theory calculations to reveal the synergistic effects of nitrogen and vacancies in HOPG. Our findings reveal a remarkable shift of the vacancy-induced resonance peak from an unoccupied state in pristine HOPG to an occupied state in nitrogen-doped HOPG. This shift directly correlates with the shift of the charge neutrality point resulting from the n-doping induced by substitutional nitrogen. These results open new avenues for defect engineering in graphite or graphene and achieving novel functionalities for chemical activity or electronic properties.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Chemphyschem Asunto de la revista: BIOFISICA / QUIMICA Año: 2024 Tipo del documento: Article País de afiliación: Francia Pais de publicación: Alemania
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Chemphyschem Asunto de la revista: BIOFISICA / QUIMICA Año: 2024 Tipo del documento: Article País de afiliación: Francia Pais de publicación: Alemania