Zobrazeno 1 - 10
of 23
pro vyhledávání: '"V B Gutan"'
Autor:
E. M. Zvrva, V. B. Gutan, O. Ya. Manashirov, S. A. Ambrozvich, A. N. Lobanov, A. N. Gorgobiani
Publikováno v:
Inorganic Materials. 49:487-491
We have proposed, experimentally demonstrated, and implemented a technique for producing a new photostimulated blue-green phosphor with increased photostimulated luminescence intensity via additional doping of the Sr4Al14O25:Eu,Tm phosphor with La3+.
Publikováno v:
Inorganic Materials. 49:278-282
We have studied the key features of the luminescence spectra and kinetics of (Y1 − x Tm x )2O2S solid solutions in the range 400–2000 nm under laser excitation at 790 and 810 nm. The results have been used to develop a series of IR phosphors “i
Publikováno v:
Inorganic Materials. 48:721-726
We have established the key trends in the variation of the intensity of the visible and IR luminescence of (Y1 − x − y − zYbxTmyErz)2O2S solid solutions in relation to their composition under laser excitation at λ = 0.940 μm. The results obta
Publikováno v:
Inorganic Materials. 47:1384-1390
We have determined the composition range of solid solutions in the binary system YPO4-YbPO4 and identified the key trends in the composition dependence of their IR Stokes luminescence intensity and decay time in the range 0.96–1.1 μm. The results
Publikováno v:
Inorganic Materials. 47:1006-1011
We have identified general relationships between the spectral and kinetic properties of the IR Stokes luminescence bands of Y1 − x − yNdxPryPO4 solid solutions in the spectral range 0.86–1.40 μm under 0.810-μm laser excitation. The results ha
Publikováno v:
Bulletin of the Lebedev Physics Institute. 37:304-308
The ranges of the existence of solid solutions in binary systems Ln2O2S-Yb2O2S(Ln = Y, La, Gd) were found and main features of variations of Stokes IR luminescence intensity of Ln2O2S·Yb in the range of 0.96–1.1 µm were determined depending on th
Publikováno v:
Inorganic Materials. 46:889-895
We describe a series of efficient “invisible” IR phosphors based on ytterbium and yttrium phosphates, differing in spectral sensitivity in the ranges 0.8–0.84 and 1.5–1.6 μm. These phosphors are of considerable practical interest and can be
Publikováno v:
Inorganic Materials. 46:770-775
We have studied the luminescence of various classes of Er3+-doped inorganic phosphors under IR excitation. The highest IR Stokes luminescence efficiency in the range 1.5–1.6 μm is offered by Yb0.99Er0.01PO4 (xenotime structure). This efficient IR
Publikováno v:
Inorganic Materials. 45:1289-1294
The photoluminescence, luminescence excitation, and phosphorescence spectra of SrAl2O4:Eu2+,Dy3+ and Sr4Al14O25:Eu2+,Dy3+ powder phosphors have been studied in detail at 80 and 300 K. A conceptual model is proposed for strontium-aluminate-based optic
Autor:
Mishik A. Kazaryan, A. N. Georgobiani, Yu. P. Timofeev, V. B. Gutan, O. Ya. Manashirov, A. V. Krotov
Publikováno v:
Inorganic Materials. 45:1166-1170
Ce3+ doping of Y2O2S:Er3+ can be used to suppress the visible anti-Stokes luminescence of the phosphor under excitation in the range 0.90–0.98 µm. We take advantage of this effect to create a new, efficient “invisible” IR phosphor emitting in