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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.)

Exploring effects of microwave-assisted thermal annealing on optical properties of Zn2GeO4 nanostructured films

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Autor(es):
Suzuki, V. Y. [1] ; de Paula, N. H. [1] ; Goncalves, R. [2] ; Li, M. S. [3] ; Pereira, E. C. [2] ; Longo, E. [2] ; La Porta, F. A. [1]
Número total de Autores: 7
Afiliação do(s) autor(es):
[1] Fed Technol Univ Parana, Lab Nanotechnol & Computat Chem, Ave Pioneiros 3131, BR-86036370 Londrina, PR - Brazil
[2] Univ Fed Sao Carlos, INCTMN UFSCar, POB 676, BR-13565905 Sao Carlos, SP - Brazil
[3] Univ Sao Paulo, Inst Fis Sao Carlos, BR-13560970 Sao Carlos, SP - Brazil
Número total de Afiliações: 3
Tipo de documento: Artigo Científico
Fonte: MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS; v. 246, p. 7-12, JUL 2019.
Citações Web of Science: 0
Resumo

Herein, we present a study about the effect of microwave-assisted thermal treatment on the optical properties of Zn2GeO4 (ZGO) nanostructured films. These films were prepared using the following strategy: (i) ZGO nanorods were synthesized using the hydrothermal method, (ii) the obtained nanorods suspension was deposited on FTO substrates by casting, and (iii) the samples were microwave-annealed for 120 min at different temperatures of 250, 350 or 450 degrees C. These films were characterized by X-ray diffraction (XRD). A rhombohedral structure was obtained at all temperatures. However, there are different structural distortions in both the tetrahedral {[}ZnO4] and {[}GeO4] clusters. This change leads to alterations in the optical properties, which were characterized using ultraviolet-visible diffuse reflectance (UV-vis) and photoluminescence (PL). The results showed an interesting way to modulate some important properties for designing new optoelectronic devices. (AU)

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