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

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

Author de Almeida, Maciel Salomao Google Scholar
Bezerra dos Santos, Maria Aparecida Google Scholar
Goncalves, Rosana de Fatima Autor UNIFESP Google Scholar
de Cassia Santos, Maria Rita Google Scholar
de Azevedo Marques, Ana Paula Autor UNIFESP Google Scholar
Longo, Elson Google Scholar
La Porta, Felipe de Almeida Google Scholar
Pinatti, Ivo Mateus Google Scholar
Penha Silva, Maya Dayana Google Scholar
Godinho, Mario Junior Google Scholar
Abstract 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.
Keywords Gd(OH)(3)
GdOOH
Gd2O3
nanorods
Language English
Sponsor Brazilian agency FAPESP-CDMF [2013/07296-2]
Brazilian agency FAPESP [2013/07437-5]
Brazilian agency CAPES/PROCAD [182441]
Brazilian agency CNPq [554580/2010-1, 485518/2013-9]
Brazilian agency FAPEG
Grant number FAPESP:2013/07296-2
2013/07437-5
CAPES:182441
CNPq:554580/2010-1
485518/2013-9
Date 2016
Published in Materials Research-Ibero-American Journal Of Materials. Sao Carlos, v. 19, n. 5, p. 1155-1161, 2016.
ISSN 1516-1439 (Sherpa/Romeo, impact factor)
Publisher Univ Fed Sao Carlos, Dept Engenharia Materials
Extent 1155-1161
Origin http://dx.doi.org/10.1590/1980-5373-MR-2016-0252
Access rights Open access Open Access
Type Article
Web of Science ID WOS:000385626000027
SciELO ID S1516-14392016000501155 (statistics in SciELO)
URI http://repositorio.unifesp.br/handle/11600/51067

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