Effect of the Li₂O: ZnO ratio on the kinetics of cathode luminescence and optical properties of phosphate glass activated by Dy ³⁺

Elena Fedorovna Polisadova, H. A. Othman, V. M. Lisitsyn

Division for Materials Science

Research output: Contribution to journal › Article

Abstract

Synthesis of glass system with the composition (mol. %) 50P ₂O₅-(50 - x)Li₂O - xZnO + 5 wt % Dy ₂O₃ has been described. IR absorption spectra and the kinetics of cathodeluminescence at x ranges from 0 up to 50 has been investigated. With the replacement of Li by Zn, a decrease of the oxygen ions' packing density and the average phosphate chain length could be observed. The increase of the ZnO quantity in the glass composition results in the luminescence decay time decreased from 240 to 50 μs in the 481 and 573 nm bands: here, the branching coefficient for the ⁴F_9/2 energy level undergoes changes. The luminescence kinetics are well described by the Inokyti-Hiroyama model for the dipole-dipole mechanism.

Original language	English
Pages (from-to)	138-143
Number of pages	6
Journal	Glass Physics and Chemistry
Volume	40
Issue number	2
DOIs	https://doi.org/10.1134/S1087659614020151
Publication status	Published - 1 Jan 2014

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Keywords

decay kinetics
dysprosium ion
excitation energy transfer
luminescence
oxygen packing density
phosphate chain length
phosphate glass

ASJC Scopus subject areas

Ceramics and Composites
Condensed Matter Physics
Materials Chemistry

Cite this

Polisadova, E. F., Othman, H. A., & Lisitsyn, V. M. (2014). Effect of the Li₂O: ZnO ratio on the kinetics of cathode luminescence and optical properties of phosphate glass activated by Dy ³⁺. Glass Physics and Chemistry, 40(2), 138-143. https://doi.org/10.1134/S1087659614020151

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title = "Effect of the Li2O: ZnO ratio on the kinetics of cathode luminescence and optical properties of phosphate glass activated by Dy 3+",

abstract = "Synthesis of glass system with the composition (mol. {\%}) 50P 2O5-(50 - x)Li2O - xZnO + 5 wt {\%} Dy 2O3 has been described. IR absorption spectra and the kinetics of cathodeluminescence at x ranges from 0 up to 50 has been investigated. With the replacement of Li by Zn, a decrease of the oxygen ions' packing density and the average phosphate chain length could be observed. The increase of the ZnO quantity in the glass composition results in the luminescence decay time decreased from 240 to 50 μs in the 481 and 573 nm bands: here, the branching coefficient for the 4F9/2 energy level undergoes changes. The luminescence kinetics are well described by the Inokyti-Hiroyama model for the dipole-dipole mechanism.",

keywords = "decay kinetics, dysprosium ion, excitation energy transfer, luminescence, oxygen packing density, phosphate chain length, phosphate glass",

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AU - Polisadova, Elena Fedorovna

AU - Othman, H. A.

AU - Lisitsyn, V. M.

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AB - Synthesis of glass system with the composition (mol. %) 50P 2O5-(50 - x)Li2O - xZnO + 5 wt % Dy 2O3 has been described. IR absorption spectra and the kinetics of cathodeluminescence at x ranges from 0 up to 50 has been investigated. With the replacement of Li by Zn, a decrease of the oxygen ions' packing density and the average phosphate chain length could be observed. The increase of the ZnO quantity in the glass composition results in the luminescence decay time decreased from 240 to 50 μs in the 481 and 573 nm bands: here, the branching coefficient for the 4F9/2 energy level undergoes changes. The luminescence kinetics are well described by the Inokyti-Hiroyama model for the dipole-dipole mechanism.

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10.1134/S1087659614020151