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(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

Structural, Electronic, Vibrational, and Topological Analysis of Single-Walled Zinc Oxide Nanotubes

Texto completo
Autor(es):
Marana, Naiara L. [1] ; Casassa, Silvia [2] ; Longo, Elson [3] ; Sambrano, Julio R. [1]
Número total de Autores: 4
Afiliação do(s) autor(es):
[1] Sao Paulo State Univ, UNESP, Modeling & Mol Simulat Grp, BR-17033360 Bauru, SP - Brazil
[2] Univ Turin, Dept Chem, Theoret Chem Grp, Turin - Italy
[3] Sao Paulo State Univ, UNESP, Inst Chem, BR-14801907 Araraquara, SP - Brazil
Número total de Afiliações: 3
Tipo de documento: Artigo Científico
Fonte: Journal of Physical Chemistry C; v. 120, n. 12, p. 6814-6823, MAR 31 2016.
Citações Web of Science: 11
Resumo

Single-walled armchair and zigzag ZnO nanotubes (SWZnONTs) have been studied via periodic computational simulations based on density functional theory with the B3LYP, HSE06, PBE0, and PWGGA functional and all-electron basis set. The influence of the diameter of the nanotubes was carried out with respect to the bond length (Zn-O), bond angles (Zn-O-Zn), energy strain, band gap, density of states (DOS), band structures, vibrational analysis, and topological analysis of the electron density according to the quantum theory of atoms in molecules applied to the solid state. Its nanotubes properties were compared with the ZnO bulk and (0001) monolayer surface. The topological analysis, infrared and Raman spectra, and its vibrational modes at increasing diameter are reported for the first time. Owing to these analysis, both chiralities with large diameter can be used interchangeably in semiconductor applications. These theoretical models can be extended to study further issues, such as the effects caused by the addition of dopant and the interaction of molecules inside and/or outside of the nanotube. (AU)

Processo FAPESP: 13/19289-0 - Oxi-redução de gases pelo catalisador TiO2 dopado com átomos de CE: um estudo computacional
Beneficiário:Julio Ricardo Sambrano
Linha de fomento: Auxílio à Pesquisa - Regular
Processo FAPESP: 13/19713-7 - Estudo computacional do óxido de zinco puro e dopado com metais de transição: bulk, superfícies, interfaces e nanotubos
Beneficiário:Naiara Letícia Marana
Linha de fomento: Bolsas no Brasil - Doutorado
Processo FAPESP: 13/07296-2 - CDMF - Centro de Desenvolvimento de Materiais Funcionais
Beneficiário:Elson Longo da Silva
Linha de fomento: Auxílio à Pesquisa - Centros de Pesquisa, Inovação e Difusão - CEPIDs