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Preparation and optical properties of Na+/Eu3+ Co-doped CaO-WO3-SiO2 transparent glass-ceramics



  1. School of Physics. Changchun Normal University, Changchun 130031, China
  2. School of Material Science and Engineering, Changchun University of Science and Technology, Changchun 130022, China


Eu3+ doped CaO-WO3-SiO2 transparent glass-ceramics were prepared by melting crystallization method, and characterized by differential scanning calorimetry (DSC), scanning electron microscopy (SEM), X-ray diffraction (XRD) and fluorescence spectroscopy. The heat treatment conditions of glass ceramics were determined. The crystal phase of glass ceramics is CaWO4 (41-1431). As the crystallization time increased, the content and the size of crystals increased and the crystal shape transformed from sphere to irregular polyhedron and small amount of hexagon. Eu3+ doped CaO-WO3-SiO2 glass ceramics show strong red light emission. According to the effect of Eu3+ as ion microprobe, it was confirmed that Eu3+ has already entered the crystalline field. Under the same heat treatment conditions, the strongest intensity of luminescence was obtained with 5wt% of Eu3+ doped. The effect of Na+ on luminescent properties of the glass-ceramics was also investigated and it was proved that Na+ was helpful to efficiency of the luminescence..


Rare earth, CaWO4, Glass-ceramics, Luminescence.

Submitted at: March 20, 2019
Accepted at: April 9, 2020


QINLEI WEI, CHAOYU MA, MENGJIE ZHAO, GUOZHONG REN, CHUNHUI SU, Preparation and optical properties of Na+/Eu3+ Co-doped CaO-WO3-SiO2 transparent glass-ceramics, Journal of Optoelectronics and Advanced Materials Vol. 22, Iss. 3-4, pp. 181-186 (2020)