Multi-ratio optical thermometry and energy storage characteristics of Yb3+/Er3+/Tm3+ doped BaNb2O6 transparent glass-ceramics

(K0.5Bi0.5)(Mg1/3Nb2/3)O3‐modified Sr0.7Bi0.2TiO3 lead‐free ceramics for energy storage applications

“…Xing et al reported the energy storage properties of BaNb 2 O 6 :Yb 3+ /Er 3+ /Tm 3+ transparent glass–ceramics. The recoverable energy density ( W rec ) of 0.99 J/cm 3 , the power density ( W power ) of (225.3 MW/cm 3 ), and the ultrafast discharge rate ( T 0.9 ≤ 15.8 ns) are observed at 700 kV/cm 9 …”

“…The recoverable energy density (W rec ) of 0.99 J/cm 3 , the power density (W power ) of (225.3 MW/cm 3 ), and the ultrafast discharge rate (T 0.9 ≤ 15.8 ns) are observed at 700 kV/cm. 9 Similarly, the incorporation of Ag 2 O into niobate-based glass-ceramics demonstrates a high discharge energy density (W rec ) 3.62 J/cm 3 and ultrafast discharge rate (t 0.9 ∼ 6.8 ns) resulting in ultrahigh power density (∼1054.8 MW/cm 3 ) at 800 kV/cm. The temperature stability is observed from 20 to 120 • C. These characteristics indicate that this glass-ceramic is an excellent material for pulsed power technology.…”

Achieving Efficient Optical Thermometry in Terbium‐Doped Highly Transparent Ceramics

“…[3,4] Of particular interest in the non-contact mode is luminescence thermometry which employs several temperature-dependent luminescence parameters and thus can extract information about the local temperature of a medium. [5][6][7][8][9] Within the realm of opticalbased methodologies, the optical thermometry based on the thermal response from excited states stands out as an especially robust and yet easily measurable representative to creating innovative and wellperforming thermometers. [6,[10][11][12] This is attributed to the fact that the excitation spectra provide more information about the higher excited levels of luminescent centers that might not be detectable in the emission spectrum.…”