Structure, Morphology, and Optical Properties of (Cal(1-3x)Eu(2x)) WO4 Microcrystals

Structure, Morphology, and Optical Properties of (Cal(1-3x)Eu(2x)) WO4 Microcrystals

Author Goncalves, R. F. Autor UNIFESP Google Scholar
Godinho, M. J. Google Scholar
Marques, A. P. A. Autor UNIFESP Google Scholar
Santos, M. R. C. Google Scholar
Rosa, I. L. V. Google Scholar
Longo, E. Google Scholar
Li, M. Siu Google Scholar
Sa, J. L. S. Google Scholar
Cavalcante, L. S. Google Scholar
Institution Universidade Federal de São Paulo (UNIFESP)
Universidade Federal de Goiás (UFG)
Univ Estadual Paulista
Universidade de São Paulo (USP)
Univ Estadual Piaui
Abstract In this letter, we report the efficient, surfactant-free, microwave-hydrothermal method of synthesizing calcium europium tungstate [(Ca1-3XEu2X) WO4, x= 0, 0.05, 0.01, 0.02, and 0.04] microcrystals. the structure and morphology were investigated using X-ray diffraction (XRD), Fourier-transform Raman (FT-Raman) spectroscopy, and field emission scanning electron microscopy (FE-SEM). XRD patterns and FT-Raman spectra indicated that all (Ca1-3Eu2X)WO4 microcrystals has a scheelite-type tetragonal
Keywords CaWO4
microcrystals
europium
microwave
Raman
photoluminescence
Language English
Sponsor Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
INCTMN
Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
Grant number FAPESP: 2013/07296-2
INCTMN: 2008/57872-1
CNPq: 573636/2008-7
CNPq: 304531/2013-8
Date 2015-03-01
Published in Electronic Materials Letters. Seoul: Korean Inst Metals Materials, v. 11, n. 2, p. 193-197, 2015.
ISSN 1738-8090 (Sherpa/Romeo, impact factor)
Publisher Korean Inst Metals Materials
Extent 193-197
Origin http://dx.doi.org/10.1007/s13391-014-4223-2
Access rights Closed access
Type Article
Web of Science ID WOS:000352043700004
URI http://repositorio.unifesp.br/handle/11600/38821

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