Synthesis and luminescent properties of Eu3+ doped Y2WO6 nanophosphors

Oxygen Vacancy Effect on Photoluminescence Properties of Self-Activated Yttrium Tungstate

“…Thus, it is experimentally shown that the emission band peak position depends on the calcination atmosphere, peaking at 441 nm for samples calcined at 1200 °C in the air and at 446 nm for the samples calcined in Ar, respectively. These emission bands around 450 nm under ultraviolet irradiation mainly originate from charge transfer transitions in the WO 6 6– groups. − With the changing of calcination temperature and atmosphere, the shape of the emission band remains basically the same. Moreover, the powders calcined in Ar also show strong near-infrared emission in the range 1500–1700 nm under near-ultraviolet or visible light excitations, while the samples calcined in the air have very weak infrared luminescence, as shown in Figure a,b.…”

“…Recently, yttrium tungstate (Y 2 WO 6 ) has been studied as a useful negative thermal expansion and luminescent material. − For the photoluminescence properties of Y 2 WO 6 crystal, most authors focus on uranium and lanthanum (Ln=Er, Sm, Eu, and Dy) doped Y 2 WO 6 systems. − The luminescence origin of these systems was ascribed to WO 6 6– groups and doping ions. By combining emissions from both WO 6 6– group and Sm 3+ , white emission was obtained. , However, self-activated luminescence of the matrix was not investigated in detail.…”

Electronic, structural, and optical properties of Y2WO6, a host material for inorganic phosphors

“…The up conversion process in Y2WO6 based phosphors [28][29][30][31] has also received some attention, with suggestions for application in solar cells [32] or optical thermometry [33][34][35]. Y2WO6 has also been found to be a suitable matrix for the fabrication of phosphors with a controlled structure at the nanoscale [36][37][38][39][40][41].…”

Transparent glass–ceramics with (Eu3+,Yb3+):YNbO4 nanocrystals: Crystallization, structure, optical spectroscopy and cooperative upconversion

“…It is used in commercial blue phosphors, such as BaMgAl 10 O 17 [11]. Various dielectric hosts in the form of nano-powders [12][13][14][15][16], films [17][18][19], crystals [20][21][22], glasses [23][24][25][26][27] and glass-ceramics (GCs) [28][29][30][31][32][33][34][35][36][37] were studied for Eu-doping to improve the emission efficiency, as well as to tune the color properties; and the list is ever growing.…”