Novel Eu-Doped Glasses in the MoO-WO-LaO-BO System: Preparation, Structure and Photoluminescent Properties.

Novel multicomponent glasses with nominal compositions of (50-x)MoO:xWO:25LaO:25BO, x = 0, 10, 20, 30, 40, 50 mol% doped with 3 mol % EuO were prepared using a conventional melt-quenching method. Their structure, thermal behavior and luminescent properties were investigated by Raman spectroscopy, differential thermal analysis and photoluminescence spectroscopy. The optical properties of the glasses were investigated by UV-vis absorption spectroscopy and a determination of the refractive index.

Glass-Ceramic Materials with Luminescent Properties in the System ZnO-BO-NbO-EuO.

In this paper, the crystallization behavior of 50ZnO:47BO:3NbO:0.5EuO (G-0 h) glass has been investigated in detail by DSC, XRD and TEM analysis. The luminescent properties of the resulting glass-ceramics were also investigated.

Effect of the Addition of WO on the Structure and Luminescent Properties of ZnO-BO:Eu Glass.

Glasses with the compositions in mol % of 50ZnO:(50 - x)BO:0.5EuO:xWO, x = 0, 1, 3, 5 and 10 were obtained by applying the melt-quenching method and investigated by Raman spectroscopy, DSC analysis and photoluminescence (PL) spectroscopy. Raman spectra revealed that tungstate ions incorporate into the base zinc borate glass as tetrahedral [WO] groups, and octahedral [WØO] species with four bridging and two non-bridging oxygen atoms.

Structure and Luminescent Properties of Niobium-Modified ZnO-BO:Eu Glass.

The effect of the addition of NbO (up to 5 mol%) on the structure and luminescent properties of ZnO-BO glass doped with 0.5 mol% (1.32 × 10) EuO was investigated by applying infrared (IR), Raman and photoluminescence (PL) spectroscopy.

Network Structure and Luminescent Properties of ZnO-BO-BiO-WO:Eu Glasses.

In this study, we investigated the influence of BiO and WO on both structure and optical properties of 50ZnO:(49 - x)BO:1BiO:xWO; x = 1, 5, 10 glasses doped with 0.5 mol% EuO. IR spectroscopy revealed the presence of trigonal BØ units connecting superstructural groups, [BØO] metaborate groups, tetrahedral BØ units in superstructural groupings (Ø = bridging oxygen atom), borate triangles with nonbridging oxygen atoms, [WO] tetrahedral, and octahedral WO species.