Zinc blende versus wurtzite ZnS nanoparticles: control of the phase and optical properties by tetrabutylammonium hydroxide

Autor(es)

La Porta, F. A. ^{[1, 2]} ; Andres, J. ^[1] ; Li, M. S. ^[3] ; Sambrano, J. R. ^[4] ; Varela, J. A. ^[2] ; Longo, E. ^[2]

Afiliação do(s) autor(es)

^[1] Univ Jaume 1, Dept Analyt & Phys Chem, Castellon de La Plana 12071 - Spain

^[2] UNESP, Inst Quim, BR-14801970 Araraquara, SP - Brazil

^[3] Univ Sao Paulo, Dept Fis, BR-13560970 Sao Carlos, SP - Brazil

^[4] UNESP, Lab Simulacao Mol, BR-17033360 Bauru, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: Physical Chemistry Chemical Physics; v. 16, n. 37, p. 20127-20137, 2014.
• Citações Web of Science: 49

Resumo

The influence of tetrabutylammonium hydroxide on the phase composition (cubic zinc blende versus hexagonal wurtzite) of ZnS nanoparticles was studied. The ZnS nanoparticles were prepared by a microwave-assisted solvothermal method, and the phase structure and optical properties along with the growth process of ZnS nanoparticles were studied. We report XRD, FE-SEM, EDXS, UV-vis and PL measurements, and first-principles calculations based on TDDFT methods in order to investigate the structural and electronic properties and the growth mechanism of ZnS nanostructures. The effects as well as the merits of microwave heating on the process and characteristics of the obtained ZnS nanostructures and their performance are reported. (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
• Modalidade de apoio: Auxílio à Pesquisa - Regular
• Processo FAPESP: 13/07296-2 - CDMF - Centro de Desenvolvimento de Materiais Funcionais
• Beneficiário: Elson Longo da Silva
• Modalidade de apoio: Auxílio à Pesquisa - Centros de Pesquisa, Inovação e Difusão - CEPIDs