Preparation, luminescence properties and energy transfer of Tm3+ and Tm3+-Eu3+ doped glass-ceramics containing NaY(MoO4)2

Abstract

A series of Tm3+ mono-doped and Tm3+-Eu3+ co-doped transparent glass-ceramics (GCs) containing NaY(MoO4)2 crystal phase was synthesized by melt quenching and glass crystallization. The optimal heat treatment condition, crystal structure, microscopic morphology, transmittance, luminescent properties and energy transfer of samples were studied using DSC, XRD, SEM, spectrophotometer and fluorescence spectrometer, respectively. When the Tm3+ mono-doped concentration is 0.4%, the emission intensity is the strongest at 456 ​nm due to 1D2→3F4 transition of Tm3+. Energy transfer from Tm3+ to Eu3+ is observed by fluorescence spectra of Tm3+-Eu3+ co-doped GCs, and the optimal doping concentrations of Tm3+ and Eu3+ are 0.4% and 1.3%, respectively. In addition, the Tm3+-Eu3+ co-doped GCs can achieve tunable emission from blue to purple by adjusting the doping concentration of Eu3+. These results indicate that Tm3+ mono-doped and Tm3+-Eu3+ co-doped GCs have potential applications in the field of color display.