In this study, Y3Al5O12:Eu3+ red phosphors were synthesized at different temperatures using a solid state reaction method. The crystal structures, surface and optical properties of the investigated Xray diffraction (XRD), field emission scanning electron microscope (FE-SEM), photoluminescence (PL) analyses. From XRD results, structure was determined to be cubic. maximum spectra observed for pho...

Main thrust of this work includes exploring lanthanide luminescence for structural probe, synthesizing white light emitting materials and understanding defect induced emission in nanomaterials. Refractory materials like zirconia and thoria doped with Eu3+ have been synthesized at a low temperature using reverse micellar route and investigated the photoluminescence properties of Eu doped ThO2 an...

Facile preparation of YVO4 films was hydrothermally achieved within 1 h by using layered yttrium hydroxide (Y2(OH)5NO3·nH2O) as the sacrificial precursor in presence excess NaVO3 at pH~8, without subsequent heat treatment. Detailed structures and optical properties products were obtained a combination XRD, FT-IR, FE-SEM, HR-TEM, PLE/PL techniques. The phase morphological evolution from Y2(OH)5N...

Rare-earth based luminescent materials are key functional components for the rational design of light-conversion smart devices. Stable Eu3+-doped strontium fluoride (SrF2) nanoparticles were prepared at room temperature in ethylene glycol. Their luminescence depends on Eu content and changes after heat treatment. The crystallinity heat-treated material increases comparison with as-synthesized s...

Seven-coordinate, pentagonal-bipyramidal (PBP) complexes [Ln(bbpen)Cl] and [Ln(bbppn)Cl], in which Ln = Tb3+ (products I II), Eu3+ (III IV), Gd3+ (V VI), with bbpen2– N,N′-bis(2-o...

Scientists are increasingly interested in new inorganic luminescence materials that could be excited with near-infrared (NIR) radiation. These can used as luminescent thermometers, bio-imaging agents, anti-counterfeiting pigments, etc. In this manuscript, we report the synthesis and investigation of optical properties two series K2Gd(PO4)(WO4):20%Tb3+ (KGPW): first, KGPW:20%Tb3+ doped 1–20% Eu3...

Core/shell (C/S)-structured upconversion nanophosphor (UCNP)-incorporated polymer waveguide-based flexible transparent displays are demonstrated. Bright green- and blue-emitting Li(Gd,Y)F4:Yb,Er and Li(Gd,Y)F4:Yb,Tm UCNPs are synthesized via solution chemical route. Their upconversion luminescence (UCL) intensities are enhanced by the formation of C/S structure with LiYF4 shell. The Li(Gd,Y)F4:...