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2010 | 117 | 3 | 466-470
Article title

Distribution of Pb^{2+} Ions in PbF_{2}-Doped CaF_{2} Crystals

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Abstracts
EN
Calcium fluoride crystals doped with various concentrations of PbF_{2} have been grown using the Bridgman technique. The optical absorption spectra reveal the characteristic UV absorption bands of the Pb^{2+} ions. The distribution of the Pb^{2+}-ions along four crystals has been investigated using the optical absorption method. Taking into account the relationship between the optical absorption coefficient and the concentration of the impurities in the samples, the effective segregation coefficient of the Pb^{2+} ions has been calculated. Our study shows that the effective segregation coefficient of the Pb^{2+} ions in CaF_{2} host depends on the dopant concentration, and varies between 0.85 and 1.15, for 0.5 mol%PbF_{2} and 3 mol%PbF_{2}-doped CaF_{2}, respectively.
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Contributors
author
  • Department of Physics, West University of Timisoara, Bd. V. Parvan 4, Timisoara 300223, Romania
author
  • Department of Physics, West University of Timisoara, Bd. V. Parvan 4, Timisoara 300223, Romania
author
  • Department of Physics, West University of Timisoara, Bd. V. Parvan 4, Timisoara 300223, Romania
author
  • Department of Physics, West University of Timisoara, Bd. V. Parvan 4, Timisoara 300223, Romania
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Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.bwnjournal-article-appv117n307kz
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