SrW(1-x)MoxO4 solid solutions: Modulation of structural and photoluminescent properties and white light emission
Abstract: SrW(1-x)MoxO4 (x = 0, 0.25, 0.5, 0.75, 1) inorganic phosphors were synthesized by the microwave-hydrothermal method (MHM). Structural changes are evaluated by changes in the crystal lattice parameters of SrW(1-x)MoxO4 solid solution. The SrWO4 → SrMoO4 transition occurs gradually, observing an evolution of the ν2(Ag)● (at 918 cm−1) active mode in opposition to the decrease of the ν2(Ag)♦ (at 884 cm−1) mode by the Raman spectra. The color quality of the phosphors and the photometric parameters were estimated using the spectral energy distribution functions of the SrW(1-x)MoxO4 phosphors. The adjustment in chemical composition by the W:Mo molar ratio enabled producing adjustable optical properties. A transition in the emission characteristics of the color (blue → yellow → white) was observed. This versatility seen in phosphors is well accepted when it comes to the development of multifunctional materials.
Author(s): Lovisa, L.X.; Dos Santos, D.F. ; Santiago, A.A.G.; Siu Li M.; Longo, E.; Bomio, M.R.D.; Motta, F.V.
Optical Materials
Published: December 2022, Volume 134, Part A, 113166
DOI: https://doi.org/10.1016/j.optmat.2022.113166
CDMF
The CDMF, hosted at the Federal University of São Carlos (UFSCar), is one of the Research, Innovation and Dissemination Centers (RIDC) supported by the São Paulo State Research Support Foundation (Fapesp), and also receives investment from the National Council Scientific and Technological Development (CNPq), from the National Institute of Science and Technology of Materials in Nanotechnology (INCTMN).
