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(Reference retrieved automatically from SciELO through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

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

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Maciel Salomão de Almeida ; Maria Aparecida Bezerra dos Santos ; Rosana de Fátima Gonçalves ; Maria Rita de Cássia Santos ; Ana Paula de Azevedo Marques ; Elson Longo ; Felipe de Almeida La Porta ; Ivo Mateus Pinatti ; Maya Dayana Penha Silva ; Mario Junior Godinho
Total Authors: 10
Document type: Journal article
Source: MATERIALS RESEARCH-IBERO-AMERICAN JOURNAL OF MATERIALS; v. 19, n. 5, p. 1155-1161, Out. 2016.

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. (AU)

FAPESP's process: 13/07296-2 - CDMF - Center for the Development of Functional Materials
Grantee:Elson Longo da Silva
Support type: Research Grants - Research, Innovation and Dissemination Centers - RIDC
FAPESP's process: 13/07437-5 - Production and characterization of nanostructures ceramic materials pure and hybrids
Grantee:Ana Paula de Azevedo Marques
Support type: Regular Research Grants