Photoluminescence properties of Ho3+ ion in lithium-fluoroborate glass containing different modifier oxides
2014
Trivalent holmium (0.5 mol%) doped lithium fluoro-borate glasses with the chemical compositions 49.5Li2B4O7−20BaF2−10NaF−20MO (where M=Mg, Ca, Cd and Pb), 49.5Li2B4O7−20BaF2−10NaF−10MgO−10CaO and 49.5Li2B4O7−20BaF2−10NaF−10CdO−10PbO were synthesized and investigated their photoluminescence properties. The variation in chemical composition by varying modifier oxides causes changes in the structural spectroscopic behavior of Ho3+ ions. These changes are examined by UV-VIS- NIR and luminescence spectroscopic techniques. The visible luminescence spectra were obtained by exciting samples at 409 nm radiation.
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