Controlling the electronic properties of 2D/3D pillared graphene and glass-like carbon: Via metal atom doping
Slepchenkov M. M., Shmygin D. S., Zhang G., Glukhova O. E.
Nanoscale
Vol.11, Issue35, P. 16414-16427
Опубликовано: 2019
Тип ресурса: Статья
Аннотация:
We present the results of investigation of the nanopore filling of planar layered and bulk pillared graphene (PGR) as well as films and 3D samples of glass-like porous carbon (GLC) with potassium atoms. The patterns of charge transfer, electronic structure, and shift of the Fermi level during the filling of nanopores with potassium atoms are established. It is found that the greatest charge transfer from potassium atoms to the carbon framework is observed in PGR with a density of 1.1-1.4 g cm-3 (that is, with a nanopore volume of 1300-1800 nm3) regardless of the framework topology. The maximum charge transfer occurs already when the mass fraction of potassium is 12 wt[%]. At the same potassium concentration, a maximum shift of the Fermi level to zero by ∼3 eV occurs in a bilayer PGR film with a density of 1.4 g cm-3. Thus, our work shows for the first time that the electronic properties of nanoporous materials doped with alkaline earth metals (in particular, potassium) can be controlled
Ключевые слова:
Atoms; Carbon films; Charge transfer; Electronic properties; Electronic structure; Fermi level; Filling; Glass; Nanopores; Plasma interactions; Porous materials; Potassium; Semiconductor doping; Carbon framework; Glass-like carbon; Mass fraction; Nano-porous materials; Porous carbons; Potassium atoms; Potassium concentrations; Potassium doping; Graphene
Язык текста: Английский
ISSN: 2040-3372
Slepchenkov M. M.
Shmygin D. S.
Zhang G.
Glukhova O. E. Ol`ga Evgenyevna 1970-
Слепченков М. М.
Шмyгин Д. С.
Жанг Г.
Глухова О. Е. Ольга Евгеньевна 1970-
Controlling the electronic properties of 2D/3D pillared graphene and glass-like carbon: Via metal atom doping
Текст визуальный непосредственный
Nanoscale
Vol.11, Issue35 P. 16414-16427
2019
Статья
Atoms Carbon films Charge transfer Electronic properties Electronic structure Fermi level Filling Glass Nanopores Plasma interactions Porous materials Potassium Semiconductor doping Carbon framework Glass-like carbon Mass fraction Nano-porous materials Porous carbons Potassium atoms Potassium concentrations Potassium doping Graphene
We present the results of investigation of the nanopore filling of planar layered and bulk pillared graphene (PGR) as well as films and 3D samples of glass-like porous carbon (GLC) with potassium atoms. The patterns of charge transfer, electronic structure, and shift of the Fermi level during the filling of nanopores with potassium atoms are established. It is found that the greatest charge transfer from potassium atoms to the carbon framework is observed in PGR with a density of 1.1-1.4 g cm-3 (that is, with a nanopore volume of 1300-1800 nm3) regardless of the framework topology. The maximum charge transfer occurs already when the mass fraction of potassium is 12 wt[%]. At the same potassium concentration, a maximum shift of the Fermi level to zero by ∼3 eV occurs in a bilayer PGR film with a density of 1.4 g cm-3. Thus, our work shows for the first time that the electronic properties of nanoporous materials doped with alkaline earth metals (in particular, potassium) can be controlled