Optical investigation in shuttle like BaMoO4:Er3+–Yb3+ phosphor in display and temperature sensing

Thermal and pump power effect in SrMoO4:Er3+-Yb3+ phosphor for thermometry and optical heating

“…Zhang et al reported that the 2 H 11/2 level is also populated from the 4 S 3/2 level by a fast thermalization between these two states [25]. The population transfer from the 4 S 3/2 level to the 2 H 11/2 level is very rapid under the application of external temperature and the transfer of population between two thermally coupled levels is quasi-thermal type [20,28]. Therefore, the well known Boltzmann distribution can be used to describe the thermalization between the two thermally coupled levels by ignoring the effect of self absorption of the fluorescence [33].…”

“…The temperature sensing study has been performed in the Er 3+ doped different hosts viz. Y 2 O 3 , Gd 2 O 3 , La 2 O 3 , BaMoO 4 , Yb 2 Ti 2 O 7 , etc., by using NIR laser diode excitation [8,[15][16][17][18][19][20].…”

Wide‐range thermometry based on green up‐conversion luminescence of K3LuF6:Yb3+/Er3+ bulk oxyfluoride glass ceramics

“…Compared to other fluorescence‐based thermometry (such as fluorescence intensity, fluorescence lifetime, and peak position), optical thermometry using FIR method with better antijamming capability and improved sensitivity is considered as a promising approach for optical thermometers . Operating as “non‐contact”, such optical thermometry is particularly favorable for the temperature measurement in electromagnetically and thermal harsh environment, such as building fire detections, biological imaging systems, and micro/nanoscale temperature measurement …”

“…Currently, among these materials mentioned above, the temperature‐sensing ability varies remarkably in different hosts . MOFs with insufficient stability generally restrict testing temperature to physiological temperature range .…”

SrMoO4:Er3+-Yb3+ upconverting phosphor for photonic and forensic applications

“…[11][12][13]. The molybdates and tungstates are considered as familiar scheelite-type tetragonal hosts for the preparation of REs doped phosphors [14,15]. The strontium molybdate (SrMoO 4 ), having scheelite type structure in which Mo is coordinated by four O 2-atoms in tetrahedral symmetry is a low phonon frequency (~ 800 cm -1 ) host of band gap ~ 3.72 eV [16].…”