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

Author(s)

Goncalves, R. F. ^[1] ; Godinho, M. J. ^[2] ; Marques, A. P. A. ^[1] ; Santos, M. R. C. ^[2] ; Rosa, I. L. V. ^[3] ; Longo, E. ; Li, M. Siu ^[4] ; Sa, J. L. S. ^[5] ; Cavalcante, L. S. ^[5]

Affiliation

^[1] Univ Fed Sao Paulo, BR-09972270 Sao Paulo - Brazil

^[2] Univ Fed Goias, Dept Quim, CAC, BR-75704020 Goias - Brazil

^[3] Univ Estadual Paulista, LIEC, DQ, BR-14801907 Sao Paulo - Brazil

^[4] Univ Sao Paulo, IFSC, BR-13560970 Sao Carlos, SP - Brazil

^[5] Univ Estadual Piaui, CCN DQ GERATEC, BR-64002150 Teresina, Piaui - Brazil

• Document type: Journal article
• Source: ELECTRONIC MATERIALS LETTERS; v. 11, n. 2, p. 193-197, MAR 2015.
• Web of Science Citations: 6

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 (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