Autor: |
Luewarasirikul, Narun, Meejitpaisan, Piyachat, Kaewkhao, Jakrapong |
Zdroj: |
Key Engineering Materials; January 2016, Vol. 675 Issue: 1 p376-379, 4p |
Abstrakt: |
Lanthanum calcium phosphate glasses doped with Eu3+ ions in compositions 20La2O3:10CaO:(70-x)P2O5:xEu2O3 (where x = 0.05, 0.10, 0.50 and 1.50 mol%) were prepared by melt-quenching technique. The density and molar volume measurements were carried out at room temperature. The absorption spectra were investigated in the UV-Vis-NIR region from 200 to 2500 nm. The emission spectra of Eu3+-doped glasses centered at 590 nm (5D0→7F1), 612 nm (5D0→7F2), 652 nm (5D0→7F3) and 699 nm (5D0→7F4) have been observed with 393 nm excitation wavelength. |
Databáze: |
Supplemental Index |
Externí odkaz: |
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