Exclusive Substitutional Nitrogen Doping on Graphene Decoupled from an Insulating Substrate | Zendy

Juan Carlos MorenoLópez | Zendy; Filippo Fedi | Zendy; Giacomo Argentero | Zendy; Marco Carini | Zendy; Johnny Chimborazo | Zendy; Jannik C. Meyer | Zendy; Thomas Pichler | Zendy; Aurelio MateoAlonso | Zendy; Paola Ayala | Zendy

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Exclusive Substitutional Nitrogen Doping on Graphene Decoupled from an Insulating Substrate

Author(s) -

Juan Carlos MorenoLópez,

Filippo Fedi,

Giacomo Argentero,

Marco Carini,

Johnny Chimborazo,

Jannik C. Meyer,

Thomas Pichler,

Aurelio MateoAlonso,

Paola Ayala

Publication year - 2020

Publication title -

the journal of physical chemistry c

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.401

H-Index - 289

eISSN - 1932-7455

pISSN - 1932-7447

DOI - 10.1021/acs.jpcc.0c06415

Subject(s) - graphene , substrate (aquarium) , materials science , doping , condensed matter physics , dispersion (optics) , nanotechnology , fermi level , chemical physics , optoelectronics , chemistry , physics , quantum mechanics , oceanography , geology , electron

The on-surface synthesis of atomically flat N-doped graphene on oxidized copper is presented. Besides circumventing the almost standard use of metallic substrates for growth, this method allows producing graphene with ∼2.0 at % N in a substitutional configuration directly decoupled from the substrate. Angle-resolved photoemission shows a linear energy-momentum dispersion where the Dirac point lies at the Fermi level. Additionally, the N functional centers can be selectively tailored in sp 2 substitutional configuration by making use of a purpose-made molecular precursor: dicyanopyrazophenanthroline (C 16 H 6 N 6 ).

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