. "Preparation and physical properties of luminescent 80GeSe(2) center dot (20-x)Sb2Se3 center dot xSb(2)Te(y):Pr2Se3 glasses; x=0, 1, 3, 10; y=2, 3, 4." . "0022-2313" . . . "Homogeneous glasses of the system 80GeSe(2) center dot (20-x)Sb2Se3 center dot xSb(2)Te(y):0.03Pr(2)Se(3) glasses; x=0, 1, 3, 10; y=2, 3, 4 were prepared. The glasses with x=0-3 are very stable without any crystallization for T { 600 degrees C. The T-g values (261-309 degrees C) and the E-g(opt) values (1.30-1.70 eV) are decreasing with the Te content. The index of refraction is high (2.55-2.73 for 2200 nm), it is increasing with increasing Te content. The Raman spectra revealed presence of GeSe4/2 tetrahedra, Ge2Se6/2 bi-tetrahedra and SbSe3/2 trigonal pyramids in studied glasses. The tellurium atoms are forming SbSe2Te and SbSeTe2 distorted pyramids. The strong luminescence corresponding to 4f transitions in Pr3+ ions was found in spectral regions (1100-1450 nm, 1500-1700 nm, 1750-2000, 2000-2600 nm and 3600-5200 nm; lambda(exc)=980, 1050 and 1550 nm). The intensities of luminescence bands depend on their composition."@en . "000313393300090" . "[3FFE38A47C23]" . "Preparation and physical properties of luminescent 80GeSe(2) center dot (20-x)Sb2Se3 center dot xSb(2)Te(y):Pr2Se3 glasses; x=0, 1, 3, 10; y=2, 3, 4."@en . . "MID IR luminescence; chalcogenide glasses"@en . . . . . "RIV/00216275:25310/13:39896065" . "25310" . "NL - Nizozemsko" . . "8"^^ . . "RIV/00216275:25310/13:39896065!RIV14-MSM-25310___" . "Feb 2013" . "134" . "5"^^ . "Frumarov\u00E1, Bo\u017Eena" . . "Parchanski, V\u00E1clav" . "Oswald, Ji\u0159\u00ED" . "10.1016/j.jlumin.2012.07.029" . . "I, P(GA203/09/0827), P(LH11101)" . "Kincl, Miloslav" . . "Preparation and physical properties of luminescent 80GeSe(2) center dot (20-x)Sb2Se3 center dot xSb(2)Te(y):Pr2Se3 glasses; x=0, 1, 3, 10; y=2, 3, 4." . "98958" . . . "Journal of Luminescence" . "2"^^ . "Frumar, Miloslav" . "Homogeneous glasses of the system 80GeSe(2) center dot (20-x)Sb2Se3 center dot xSb(2)Te(y):0.03Pr(2)Se(3) glasses; x=0, 1, 3, 10; y=2, 3, 4 were prepared. The glasses with x=0-3 are very stable without any crystallization for T { 600 degrees C. The T-g values (261-309 degrees C) and the E-g(opt) values (1.30-1.70 eV) are decreasing with the Te content. The index of refraction is high (2.55-2.73 for 2200 nm), it is increasing with increasing Te content. The Raman spectra revealed presence of GeSe4/2 tetrahedra, Ge2Se6/2 bi-tetrahedra and SbSe3/2 trigonal pyramids in studied glasses. The tellurium atoms are forming SbSe2Te and SbSeTe2 distorted pyramids. The strong luminescence corresponding to 4f transitions in Pr3+ ions was found in spectral regions (1100-1450 nm, 1500-1700 nm, 1750-2000, 2000-2600 nm and 3600-5200 nm; lambda(exc)=980, 1050 and 1550 nm). The intensities of luminescence bands depend on their composition." . . "Preparation and physical properties of luminescent 80GeSe(2) center dot (20-x)Sb2Se3 center dot xSb(2)Te(y):Pr2Se3 glasses; x=0, 1, 3, 10; y=2, 3, 4."@en . . .