Controlled synthesis and the effects of Gd 3+ substitution, calcination, and particle size on photoluminescence of (Y 0.95− x Gd x Tb 0.05 ) 2 O 3 green phosphor spheres

Local Structure Regulation in Near-Infrared Persistent Phosphor of ZnGa2O4:Cr3+ to Fabricate Natural-Light Rechargeable Optical Thermometer

“…To characterize the band gap, the diffuse reflectance ( R ∞ ) of ZGMG was performed and converted by the Kubelka–Munk function , Moreover, the [ F ( R ∞ ) h υ] 2 verses h υ plots were made according to the function ,− where A is a constant, and h υ and E g are the incident photon energy and the band-gap energy, respectively. Figure demonstrates the E g values for different contents at 1400 °C and x = 0.25 samples calcined at different temperatures.…”

Luminescent properties of Eu3+-activated Gd2ZnTiO6 double perovskite red-emitting phosphors for white light-emitting diodes and field emission displays

“…Up to date, lots of inorganic materials, such as molybdates, tungstates, titanates, oxides, and silicates, have been successfully developed for luminescent host materials. [15][16][17][18][19][20] Especially, doubly ordered perovskites, with the general formula of AA 0 BB 0 O 6 , A 2 BB 0 O 6 , and AB 1/3 B 0 2/3 O 3 , have attracted great attention due to their stable crystalline structure and high thermal stability which make them suitable for luminescent host materials. [21][22][23][24][25] Among them, Gd 2 ZnTiO 6 has been recently reminded due to the discovery of its monoclinic structure.…”

Photoluminescence properties of (Eu, Tb, Tm) co-doped PbMoO4 obtained by sonochemical synthesis

“…Groups of functional materials are emerging based on the control of particle size and morphology. These characteristics are controlled from the synthesis parameters of the materials, such as: reagent concentration, precursor pH, reaction temperature and time and synthesis method [4].…”