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

Synthesis of Pr3+-doped CaTiO3 using polymeric precursor and microwave-assisted hydrothermal methods: A comparative study

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Author(s):
Goncalves, R. F. [1, 2] ; Lima, A. R. F. [3] ; Godinho, M. J. [4, 2] ; Moura, A. P. [4] ; Espinosa, J. [2] ; Longo, E. [4] ; Marques, A. P. A. [1]
Total Authors: 7
Affiliation:
[1] UNIFESP Univ Fed Sao Paulo, BR-09972270 Diadema, SP - Brazil
[2] UFG Univ Fed Goias, Dept Quim CAC, BR-75704020 Catalao, Go - Brazil
[3] LIEC Univ Fed Sao Carlos, BR-13565905 Sao Carlos, SP - Brazil
[4] LIEC IQ Univ Estadual Paulista, BR-14801907 Araraquara, SP - Brazil
Total Affiliations: 4
Document type: Journal article
Source: CERAMICS INTERNATIONAL; v. 41, n. 10, A, p. 12841-12848, DEC 2015.
Web of Science Citations: 12
Abstract

Praseodymium-doped calcium titanate, CaTiO3:Pr3+, powders (0 and 2 mol% Pr3+ ions) were synthesized using the polymeric precursor and microwave-assisted hydrothermal methods. Both methods appear to be efficient in preparing photoluminescence materials because they require low temperatures and very short reaction times. Several characterization techniques were used to evaluate the influence of structural disorder on the reactions and properties of the materials produced. X-ray diffraction and Rietveld refinement were used to confirm that syntheses were successful. Raman spectroscopy revealed significant details of the structures of the materials produced. FE-SEM images were used to determine the shapes and dimensions of the products. Morphologies were found to be dependent on the synthesis method used. PL spectra showed Pr3+ emission lines at approximately 612 nm when the CT:Pr3+ powders were excited with a 350.7 nm laser. These lines correspond to D-1(2)-> H-3(4) transitions. (C) 2015 Elsevier Ltd and Techna Group Sr.!. All rights reserved. (AU)

FAPESP's process: 08/57872-1 - National Institute for Materials Science in Nanotechnology
Grantee:Elson Longo da Silva
Support type: Research Projects - Thematic Grants
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