The novel YbNbO4:Er3+ phosphors were firstly synthesized through the hydrothermal method by adding LiOH·H2O as flux in H2O/EG system. showed agglomerated irregular polygons coexisting with some tiny grains. XRD and Raman spectra measured to understand phase structure crystal growth mechanism of phosphors. upconversion (UC) emission spectra, pump power dependency UC studied under 980 nm excitati...

Waste fluorescent powder contains a large amount of rare earth elements, which have high value for recovery and utilization. In order to achieve the rapid efficient leaching elements in these waste phosphors, microwave-assisted Y Eu from phosphor with hydrochloric acid was studied. The maximum rates (99.84%) (89.82%) were obtained at 600 W microwave power, 60 min radiation time °C. kinetics sho...

Benzannulated N ? ?? O-chelating ligands enable facile formation of remarkably bright orange-emitting Pt( ii ) phosphors with very long-lived excited states.