Development of red-emitting phosphors have gained enormous interest in recent year, due to their great potential for biological applications as well display panels and solid-state lighting. Here, we present luminescence spectroscopy deep-red-emitting CaAl12O19 (CA6) SrAl12O19 (SA6) nanocrystals doped with Eu3+. CA6:Eu3+ SA6:Eu3+ hexagonal nanoparticles (NPs) were prepared via a solvothermal rea...

The complexation of representative lanthanides with three calix[4]arenes functionalized with four pyrazine pendent arms containing different substituents such as carbamoyl dioctyl (), diisopropyl phosphonate (), and diphenyl phosphoryl () was investigated in water-saturated 1-butyl-3-methylimidazolium bis(trifluoromethanesulfonyl)imide (BumimTf2N) by absorption spectroscopy, luminescence spectr...

Nanosized rare earth phosphovanadate phosphors (Y(P,V)O(4):Eu(3+)) have been prepared by applying the organic-inorganic polymeric precursors methodology. Luminescent powders with tetragonal structure and different vanadate concentrations (0%, 1%, 5%, 10%, 20%, 50%, and 100%, with regard to the phosphate content) were then obtained for evaluation of their structural and spectroscopic properties....

UNLABELLED Undoped ZnO, Ce-doped ZnO, and (Li, Ce)-codoped ZnO nanophosphors were prepared by a sol-gel process. The effects of the additional doping with Li ions on the crystal structure, particle morphology, and luminescence properties of Ce-doped ZnO were investigated by X-ray diffraction, scanning electron microscopy, X-ray photoelectron spectroscopy, electron paramagnetic resonance spectro...

We have investigated the electrical and optical properties of the deep levels responsible for the 1.4–1.5 eV luminescence band usually observed in II–VI compounds. We compared the energy levels found by cathodoluminescence and junction spectroscopy methods for semi-insulating ~CdTe:Cl and Cd0.8Zn0.2Te! and semiconducting samples ~undoped CdTe!. The techniques utilized were deep level transient ...

This study is aimed at the acceleration of luminescence decay in Ce-doped garnet-type scintillators by heavy aliovalent codoping. Time-resolved photoluminescence spectroscopy a wide temperature range LuGAGG:Ce epitaxial layers...