Volodymyr T. Adamiv

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The high optical quality glasses with Li<sub>2</sub>B<sub>4</sub>O<sub>7</sub>:Eu, CaB<sub>4</sub>O<sub>7</sub>:Eu, and LiCaBO<sub>3</sub>:Eu compositions containing 0.5 and 1.0 mol. % Eu<sub>2</sub>O<sub>3</sub> have been obtained by standard glass technology. Using electron paramagnetic resonance (EPR) and optical spectroscopy it was shown that the Eu(More)
"The chromium site in doped glassy lithium tetraborate" (2014). Peter Dowben Publications. Paper 261. h i g h l i g h t s g r a p h i c a l a b s t r a c t Adoption of the Li þ site for chromium dopants in lithium tetraborate identified. Increased oxygen coordination for glass over the crystalline lithium tetraborate. Distortions about the doping chromium(More)
The four dopants (Nd, Gd, Dy, and Er) substitutionally occupy the Li + sites in lithium tetraborate (Li 2 B 4 O 7 : RE) glasses as determined by analysis of the extended X-ray absorption fine structure. The dopants are coordinated by 6-8 oxygen at a distance of 2.3 to 2.5 Å, depending on the rare earth. The inverse relationship between the RE-O coordination(More)
The series of V-doped glasses with Li<sub>2</sub>O-2B<sub>2</sub>O<sub>3</sub> (Li<sub>2</sub>B<sub>4</sub>O<sub>7</sub>), 1/2(Li<sub>2</sub>O-K<sub>2</sub>O-4B<sub>2</sub>O<sub>3</sub>), (LiKB<sub>4</sub>O<sub>7</sub>), CaO-2B<sub>2</sub>O<sub>3</sub> (CaB<sub>4</sub>O<sub>7</sub>) and 1/2(Li<sub>2</sub>O-2CaO-B<sub>2</sub>O<sub>3</sub>)(More)
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