Preparation and Characterization of Tb³⁺/Eu³⁺ Co-Doped Na₂O-Al₂O₃-SiO₂ Glass Ceramics

Abstract:

Tb³⁺/Eu³⁺ co-doped sodium nepheline transparent glass ceramics with the weight percentage composition of 27Na₂O-19Al₂O₃-23SiO₂-13H₃BO₃-6TiO₂-6ZrO₂-3Tb₄O₇-3Eu₂O₃ were prepared by melting crystallization method. The heat treatment system, crystal phase, micromorphology, transmittance and luminescent properties of the samples were tested and characterized by DSC, XRD, SEM, UV-Vis-NIR and fluorescence spectrometer, respectively. The results show that the optimum heat treatment condition of glass at 480°C nucleated 1h and 580°C grew 1h., the crystal phase was NaAlSiO₄(35-0424), and the incorporation of rare earth ions did not affect the crystal phase. The transmittance of glass ceramics in the visible area can reach 78%. The effect of different Tb³⁺/Eu³⁺ doping concentration on the luminescent properties of glass ceramic samples was discussed. It was found that there was a phenomenon of Tb³⁺ to Eu³⁺ energy transfer, and the luminescence effect was best when the percentage of mass of Tb³⁺/Eu³⁺ was 1:1.

• Periodical: Key Engineering Materials (Volume 768)
• Pages: 109-113
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.768.109
• Online since: April 2018
• Authors: Shuo Meng, Jian Xin Li, Hong Bo Zhang*, Xiang Yu Zou, Qin Lei Wei, Chun Hui Su
• Keywords: Glass Ceramic, NaAlSiO₄, Tb3+/Eu3+ Co-Doped

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