MgAl2O4:Mn2+ Red-Emitting Phosphor: Influence of MgF2 Flux on the Microstructure and Luminescence Properties

Authors

  • Shan Li School of Chemistry and Chemical Engineering, Hirano Institute for Materials Innovation, Shanghai Jiao Tong University Dongchuan Road No.800, Shanghai, 200240, P. R. China
  • Shu-Yu Zhao School of Chemistry and Chemical Engineering, Hirano Institute for Materials Innovation, Shanghai Jiao Tong University Dongchuan Road No.800, Shanghai, 200240, P. R. China
  • Tian-Nan Ye Materials Research Center for Element Strategy, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midoriku, Yokohama, Kanagawa 226-8503, Japan
  • Xue-Yan Wu School of Materials Science and Engineering, Hirano Institute for Materials Innovation, Shanghai Jiao Tong University Dongchuan Road No.800, Shanghai, 200240, P. R. China
  • Kai-Xue Wang School of Chemistry and Chemical Engineering, Hirano Institute for Materials Innovation, Shanghai Jiao Tong University Dongchuan Road No.800, Shanghai, 200240, P. R. China
  • Xiao Wei School of Chemistry and Chemical Engineering, Hirano Institute for Materials Innovation, Shanghai Jiao Tong University Dongchuan Road No.800, Shanghai, 200240, P. R. China
  • Jie-Sheng Chen School of Chemistry and Chemical Engineering, Hirano Institute for Materials Innovation, Shanghai Jiao Tong University Dongchuan Road No.800, Shanghai, 200240, P. R. China

DOI:

https://doi.org/10.12974/2311-8717.2017.05.01.3

Keywords:

Magnesium aluminate, Manganese doping, Red phosphor, Solid state reaction, MgF2 Flux.

Abstract

A serial of Mn ions doped MgAl2O4 phosphors, exhibiting only red light centred at 650 nm, have been prepared by a solid state reaction (SSR) with and without MgF2 flux. These phosphors have been characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), and electron paramagnetic resonance (EPR) measurements. EPR result demonstrates that Mn ions exist as +2 valence. The emission intensity of the phosphors varies with Mn2+ concentration. The addition of MgF2 flux to the reactants enhances the luminescence properties through elevating the crystallinity, regulating the morphology and particle size of the MgAl2O4:Mn2+ phosphor. The phosphor MgAl2O4:0.10%Mn2+ with 12 wt% MgF2 flux shows the best emission performance. 

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Published

2017-02-27

How to Cite

Li, S., Zhao, S.-Y., Ye, T.-N., Wu, X.-Y., Wang, K.-X., Wei, X., & Chen, J.-S. (2017). MgAl2O4:Mn2+ Red-Emitting Phosphor: Influence of MgF2 Flux on the Microstructure and Luminescence Properties. Journal of Composites and Biodegradable Polymers, 5(1), 17–25. https://doi.org/10.12974/2311-8717.2017.05.01.3

Issue

Vol. 5 No. 1 (2017)

Section

Articles