Yb3+/Tm3+ co-doped NaNbO3 nanocrystals as three-photon-excited luminescent nanothermometers

Up-conversion luminescence and optical temperature-sensing properties of Er3+-doped perovskite Na0.5Bi0.5TiO3 nanocrystals

“…Rare-earth (RE) doped materials have been used as optical temperature sensor for biological systems and particularly environment because of their outstanding upconversion (UC) emission properties [1][2][3][4]. This kind of temperature sensing technique is based on the temperature-dependent fluorescence intensity ration (FIR) of UC emission from RE ions [5].…”

Spectral tuning via multi-phonon-assisted stokes and anti-stokes excitations in LaF3: Tm3+ nanoparticles

“…4. It is worth mentioning that the temperature has a big effect on the ratio of NIR to blue luminescence, which is important for potential application in thermal sensors [52,53].…”

Effect of pH of Precursor on Up/Downconversion and Cathodoluminescence of Gd2O3:Ho3+/Yb3+ Phosphor and Magneto‐Optic Studies

“…The up/downconversion emission from rare earth ion finds several applications discussed in the literature . In up/downconversion process, the emitted color is determined by the selection of dopants ion concentration and their combinations . Availability of lower phonon energy phosphors has greatly expanded the utility of Ho 3+ as a dominant activator dopant due to its favorable energy level scheme.…”