Search for: [Abstrakt = "Oxychloroborate glasses containing Dy3\+ ions in the B2O3–PbCl2–PbO–Al2O3–WO3 system were studied using X\-ray diffraction, Raman, FT\-IR, absorption, excitation and luminescence spectroscopy. The results concerning glass preparation, short\-range order structure and optical properties are reported. X\-ray diffraction analysis evidently indicates that the fully amorphous system was prepared. Coexistence of trigonal BO3 and tetrahedral BO4 units was evidenced by Raman and FT\-IR spectroscopy. The electronic states belonging to the 4f9 configuration of trivalent Dy3\+ were determined from the absorption and excitation spectra. The luminescence bands at 480, 573 and 662 nm were registered in oxychloride glasses, which correspond to transitions originating from the 4F9\/2 state to the 6HJ\/2 \(J = 11, 13, 15\) states of Dy3\+."]

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