Experimental and theoretical studies of Dy3+ doped alkaline earth aluminosilicate glasses

The Structure of Gd3+-Doped Li2O and K2O Containing Aluminosilicate Glasses from Molecular Dynamics Simulations

“…The luminescence lifetime decreases with increasing network modifier oxide (NMO) concentration, i.e., with increasing molecular weight, density, and refractive index of the glass composition, in metaluminous glasses, i.e., where the molar concentration of NMO and Al 2 O 3 are equal, but increases with increasing NMO concentration in many, although not all, peralkaline glasses, i.e., where the molar concentration of NMO is higher than that of Al 2 O 3 . This effect has so far been observed for Sm 3+ , Eu 3+ , Dy 3+ and Tb 3+ doped glasses [10][11][12][13][14][15].…”

“…, denoted as 30Li and 30K, respectively. Since in experimental investigations very similar correlations of luminescence properties and the glass composition was observed irrespective of the rare earth ion used (Sm 3+ , Eu 3+ , Dy 3+ , Tb 3+ ) [10][11][12][13][14][15], Gd 3+ was chosen as model rare-earth ion because of its similar ionic radius (Sm 3+ (0.96 Å), Eu 3+ (0.95 Å), Gd 3+ (0.94 Å), Tb 3+ (0.92 Å), Dy 3+ (0.91 Å) [43]) and the available interatomic potential parameters. All structure models contain approximately 1 mol% Gd 2 O 3 .…”

“…This has been shown for Yb 3+ doped aluminosilicate glasses as compared to phosphate or fluoride phosphate glasses and even to monocrystalline CaF 2 [9]. Recently, a number of systematic studies on the compositional effects on the optical properties of Sm 3+ [10][11][12], Eu 3+ [12,13], Dy 3+ [14], Tb 3+ [15], Er 3+ [16], and Yb 3+ [9,17] doped aluminosilicate glasses were reported. It has been shown that in addition to the OH concentration, the base glass composition also has a great influence on the optical properties, such as luminescence lifetime and spectral shape of absorption and emission.…”

Current trends in the use of rare earth metals and their compounds in metallurgy and production of optical materials

“…Так, ряд исследований посвящен разработке боратных и силикатных стекол, легированных РЗМ, для применения в оптоэлектронике [17][18][19]. Наиболее часто для легирования таких стекол используют диспрозий (Dy 3+ ).…”

“…Однако ведутся исследования по использованию и других РЗМ (индивидуальных или смеси нескольких). Например, в качестве легирующих компонентов в силикатных стеклах в настоящее время используют также Sm 3+ , Eu 3+ , Tb 3+ [17,18].…”