Ce3+ - doped Y2SiO5 nanophosphors were successfully produced by Sol-Gel process. To study the influence of temperature on structure and luminescence Y2SiO5:Ce3+, we annealed xerogels at temperatures 800, 900, 950, 1000, 1050 1250 °C. The X-ray diffraction technique (XRD), field emission scanning electron microscopy (FEG-SEM), Fourier transform infrared spectroscopy (FTIR) steady photoluminescen...

We provide measurements to support our earlier report of continuous wave fiber lasing in a small core Ce3+-doped selenide chalcogenide SIF (step index fiber) core: Ge-As-Ga-Se glass, doped with 500 ppmw (parts-per-million by weight) cerium (III). In-band pumping Ce3+ fiber, bulk glass and ground geometries, at 4.15 μm wavelength, gives MIR (mid-infrared) photoluminescence spanning 3.40–5.80 cor...

Two series of (Gd, Y, Yb)3Al2Ga3O12 quintuple compounds with a garnet structure and solely doped Ce Tb were prepared in the form ceramics by sintering oxygen at 1600 °C for two hours studied interaction activator ions ytterbium entering matrix. It was shown that photoluminescence scintillation Ce3+ are completely suppressed, predominantly tunneling ionization through charge transfer state (CTS)...

Meeting the high demand for lanthanide-doped luminescent nanocrystals across a broad range of fields hinges upon the development of a robust synthetic protocol that provides rapid, just-in-time nanocrystal preparation. However, to date, almost all lanthanide-doped luminescent nanomaterials have relied on direct synthesis requiring stringent controls over crystal nucleation and growth at elevate...

The traditional solid-state technique was used to create LaBSiO5 phosphors doped with Ce3+ and Tb3+ at 1,100 °C. These phosphors' phase purity luminous characteristics are looked at. Under ultraviolet (UV) light stimulation, LaBSiO5: emit bright green light, whereas samples incorporated blue-violet light. With UV ray as well illumination. 5d-4f shift for is responsible the radiation, while 5D4→...

Lanthanide (Ln3+)-doped near infrared (NIR)-II luminescent nanoprobes have shown great promise in many technological fields, but are currently limited by the low absorption efficiency of Ln3+ due to forbidden 4f→4f transition. Herein, we report a novel NIR-II nanoprobe based on efficient energy transfer from Ce3+ Er3+ and Nd3+ sub-10 nm SrS nanocrystals (NCs), which excitable using commercial b...

The redox performance of CeO2 - x nanocrystals (nanoceria) is always accompanied by the switching of cerium oxidation state between Ce3+ and Ce4+. We monitored Ce3+ → Ce4+ oxidation of nanoceria stimulated by oxidant in aqueous colloidal solutions controlling the luminescence of Ce3+ ions located at different distances from nanoceria surface. The observed Ce3+ luminescence changes indicate that...