Idioma:

Raman evidence for pressure-induced formation of diamondene

Martins, Luiz Gustavo Pimenta ; Matos, Matheus J S ; Paschoal, Alexandre R ; Freire, Paulo T C ; Andrade, Nadia F ; Aguiar, Acrísio L ; Kong, Jing ; Neves, Bernardo R A ; de Oliveira, Alan B ; Mazzoni, Mário S C ; Filho, Antonio G Souza ; Cançado, Luiz Gustavo

Nature communications, 2017-07, Vol.8 (1), p.96-9, Article 96 [Periódico revisado por pares]

England: Nature Publishing Group

Texto completo disponível

Citações Citado por

Enviar para

Título:
Raman evidence for pressure-induced formation of diamondene
Autor: Martins, Luiz Gustavo Pimenta ; Matos, Matheus J S ; Paschoal, Alexandre R ; Freire, Paulo T C ; Andrade, Nadia F ; Aguiar, Acrísio L ; Kong, Jing ; Neves, Bernardo R A ; de Oliveira, Alan B ; Mazzoni, Mário S C ; Filho, Antonio G Souza ; Cançado, Luiz Gustavo
Assuntos: Chemical vapor deposition ; Diamond films ; Diamonds ; Experiments ; Graphene ; Graphite ; High pressure ; Lasers ; Phase transitions ; Pressure ; Raman spectroscopy ; Spectroscopy ; Spectrum analysis ; Thin films
É parte de: Nature communications, 2017-07, Vol.8 (1), p.96-9, Article 96
Notas: ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
Descrição: Despite the advanced stage of diamond thin-film technology, with applications ranging from superconductivity to biosensing, the realization of a stable and atomically thick two-dimensional diamond material, named here as diamondene, is still forthcoming. Adding to the outstanding properties of its bulk and thin-film counterparts, diamondene is predicted to be a ferromagnetic semiconductor with spin polarized bands. Here, we provide spectroscopic evidence for the formation of diamondene by performing Raman spectroscopy of double-layer graphene under high pressure. The results are explained in terms of a breakdown in the Kohn anomaly associated with the finite size of the remaining graphene sites surrounded by the diamondene matrix. Ab initio calculations and molecular dynamics simulations are employed to clarify the mechanism of diamondene formation, which requires two or more layers of graphene subjected to high pressures in the presence of specific chemical groups such as hydroxyl groups or hydrogens.The synthesis of two-dimensional diamond is the ultimate goal of diamond thin-film technology. Here, the authors perform Raman spectroscopy of bilayer graphene under pressure, and obtain spectroscopic evidence of formation of diamondene, an atomically thin form of diamond.
Editor: England: Nature Publishing Group
Idioma: Inglês

Links

View this record in MEDLINE/PubMed

Voltar para lista de resultados

Realização: Logos de Redes Sociais:

Raman evidence for pressure-induced formation of diamondene

Martins, Luiz Gustavo Pimenta ; Matos, Matheus J S ; Paschoal, Alexandre R ; Freire, Paulo T C ; Andrade, Nadia F ; Aguiar, Acrísio L ; Kong, Jing ; Neves, Bernardo R A ; de Oliveira, Alan B ; Mazzoni, Mário S C ; Filho, Antonio G Souza ; Cançado, Luiz Gustavo

England: Nature Publishing Group

Buscando em bases de dados remotas. Favor aguardar.