Orange-red emitting praseodymium doped yttrium-molybdate nanophosphors for multifunctional applications

Synthesis and photoluminescent characterization of ceramic phosphors Li2MgGeO4:Ln3+ (Ln3+ = Pr3+ or Tm3+) under different excitation wavelengths

“…According to previous studies, different ceramic phosphors containing praseodymium ions, such as BaNb 2 O 6 , 30 CaWO 4 , 31 and Y 2 MoO 6 , 32 exhibit orange-red emission. However, results obtained for Sr 1.5 Ca 0.5 SiO 4 , 33 Ca 3 Y 2 Si 3 O 12 , 34 and CaSnO 3 (ref.…”

Chicken Egg Shell Waste Derived Calcium Oxide Based Nanohybrid For Rapid Removal of Heavy Metal Ions from Water: Green Synthesis, Kinetics and Reusability

“…Result obtained showed that SnO 2 @CaO (2.4 eV) nanohybrid has lower band gap as compared to parent nanoparticle SnO 2 (3.15 eV) and CaO (2.90 eV) (Figure 2Sa). With doping, the edge shifted towards higher energies due to the synergic impact and variable change in adsorption [62] . As the size of SnO 2 @CaO decrease, difference in energy levels reduced and width of bands gets shorter which shifts the adsorption spectrum towards red region.…”

“…With doping, the edge shifted towards higher energies due to the synergic impact and variable change in adsorption. [62] As the size of SnO 2 @CaO decrease, difference in energy levels reduced and width of bands gets shorter which shifts the adsorption spectrum towards red region. After doping similar trend was observed in Ni@ZnO (2.54 eV), ZnO@CdS (1.67 eV), ZnS@UF (1.8 eV), ZnO@UF (1.3 eV).…”