ZnO architectures synthesized by a microwave-assisted hydrothermal method and their photoluminescence properties

Nenhuma Miniatura disponível

Data

2010-06-03

Orientador

Coorientador

Pós-graduação

Curso de graduação

Título da Revista

ISSN da Revista

Título de Volume

Editor

Elsevier B.V.

Tipo

Artigo

Direito de acesso

Acesso restrito

Resumo

Zinc oxide (ZnO) architectures were synthesized by an efficient Microwave-Assisted Hydrothermal (MAH) method using a cationic surfactant, cetyltrimethylammonium bromide (CTAB), as the structure-directing template. The ZnO nanostructures and microstructures were obtained under hydrothermal conditions using microwave radiation (2.45 GHz) at 130 degrees C for 30 min. ZnO samples prepared at the same temperature for 60, 120 and 180 min were also obtained. Scanning and transmission electron microscopy techniques confirm that these samples are composed of one-dimensional structures with a hexagonal cross-section grow in the (0002) direction. In addition, Fourier Transform Raman spectroscopy and photoluminescence (PL) measurements were used to investigate the structural changes evolving into ZnO crystals. Using the MAH method, ZnO was obtained at a lower temperature and a shorter time compared to the conventional hydrothermal method. (C) 2010 Elsevier B.V. All rights reserved.

Descrição

Idioma

Inglês

Como citar

Solid State Ionics. Amsterdam: Elsevier B.V., v. 181, n. 15-16, p. 775-780, 2010.

Itens relacionados