Novel Gd(OH)(3), GdOOH and Gd2O3 Nanorods: Microwave-Assisted Hydrothermal Synthesis and Optical Properties

We present a study of the controlled synthesis and optical properties of single-crystals Gd(OH)(3), GdOOH and Gd2O3 nanorods. In this work, Gd(OH)(3) nanorods were synthesized by a simple and fast microwave-assisted hydrothermal method. This process combined with the thermal decomposition oxidation...

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Detalles Bibliográficos
Autores: Almeida, Maciel Salomao de, Bezerra dos Santos, Maria Aparecida, Goncalves, Rosana de Fatima, Cassia Santos, Maria Rita de, Azevedo Marques, Ana Paula de, Longo, Elson [UNESP], La Porta, Felipe de Almeida, Pinatti, Ivo Mateus, Penha Silva, Maya Dayana, Godinho, Mario Junior
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2016
País:Brasil
Institución:Universidade Estadual Paulista (UNESP)
Repositorio:Repositório Institucional da UNESP
Idioma:inglés
OAI Identifier:oai:repositorio.unesp.br:11449/165340
Acceso en línea:http://dx.doi.org/10.1590/1980-5373-MR-2016-0252
http://hdl.handle.net/11449/165340
Access Level:acceso abierto
Palabra clave:Gd(OH)(3)
GdOOH
Gd2O3
nanorods
Descripción
Sumario:We present a study of the controlled synthesis and optical properties of single-crystals Gd(OH)(3), GdOOH and Gd2O3 nanorods. In this work, Gd(OH)(3) nanorods were synthesized by a simple and fast microwave-assisted hydrothermal method. This process combined with the thermal decomposition oxidation of Gd(OH)(3) nanorods as precursors enabled the preparation of single-crystalline GdOOH and Gd2O3 structures with well-defined morphology at low temperatures. The crystal structure dependence on the optical properties was investigated. We observed a green shift effect on the photoluminescence (PL) emission spectra from Gd(OH)(3) to Gd2O3 nanorods, which can be attributed to different types of surface defects, as well as intrinsic properties that contribute significantly to the modified PL behavior.

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