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International Scientific and Practical Conference
"Electronics and Information Technologies"
| Issue 10, Pages: B-37-B-40 |
| DOI: https://doi.org/10.30970/elit2018.B11 |
| Enhancement of the RE3+ Luminescence in the RE-Ag Co-doped Tetraborate Glasses |
| B. Padlyak, I. Kindrat, T. Padlyak, V. Adamiv |
| The Ag-doped Li2B4O7 and LiKB4O7 tetraborate glasses of high optical quality as well as Li2B4O7 glasses co-doped with rare earth (RE = Gd, Eu) and Ag were detailed studied by conventional electron paramagnetic resonance (EPR) and optical spectroscopy. Possible types of the Ag and RE paramagnetic and luminescence centers, their electronic and local structure in the Ag-doped and RE-Ag co-doped borate glasses were proposed based on the published data. The EPR and optical (absorption, emission, and luminescence excitation) spectra as well as luminescence decay kinetics of the Ag+, Gd3+, Eu3+ centers in the Li2B4O7:Ag, LiKB4O7:Ag, Li2B4O7:Gd,Ag, and Li2B4O7:Eu,Ag glasses were detailed investigated and analyzed. Significant enhancement of the Gd3+ and Eu3+ luminescence intensity in the Li2B4O7:RE,Ag glasses is explained by excitation energy transfer from Ag+ ions and Ag metallic nanoparticles to the RE3+ centers. |
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© Ivan Franko National University of Lviv, 2018
Developed and supported - Laboratory of high performance computing systems
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