Abstract
To develop new inorganic multifunctional materials, a series of Yb3+/Er3+ doped precursor glasses (PGs) were fabricated through melt quenching technique, and a novel niobate transparent photoelectric glass ceramic (GC) was gained via controlled crystallization of PG. Compared with PG, the up-conversion (UC) luminescence performance is significantly increased in GC. Utilizing the temperature dependence of the emission intensity of Er3+ ions, the dual-mode optical temperature measurement is realized through fluorescence intensity ratio (FIR) methods. The ultimate absolute sensitivity (Sa-max) and relative sensitivity (Sr-max) based on the thermal/non-thermal coupling energy levels (TCELs/NTCELs) are 0.68 %K−1 and 0.85% K−1, respectively. Moreover, the single-layer capacitor made of GC can release energy density of 0.83 J/cm3 (@600 kV/cm) and power density of 210 MW/cm3. This work indicates that niobate transparent glass ceramics are expected to be applied in the optical thermometry and pulse energy storage field.
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