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Sb-, Dy-, and Eu-doped oxyfluoride silicate glasses for light emitting diodes

Abstract : A series of Sb-, Dy-, and Eu-doped oxyfluoride silicate glasses for light emitting diodes (LEDs) applications were prepared via the melt-quenching method, and studied by a) photoluminescence emission and excitation spectra, b) decay curves, c) Commission Internationale de L'Eclairage (CIE) chromaticity coordinates, and d) correlated color temperatures (CCTs). We discover the energy transfer from Sb3+ to Dy3+ ions occurs in Sb/Dy co-doped glass. We also find the emission behavior of Sb3+ single doped glass is dependent on the excitation wavelength. Furthermore, the white light emission can be achieved in Sb/Dy/Eu co-doped oxyfluoride silicate glasses under ultraviolet (UV) light excitation. The results presented here demonstrate that the as-prepared Sb/Dy/Eu doped oxyfluoride silicate glasses may serve as a potential candidate for LEDs-based lighting
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Submitted on : Tuesday, November 24, 2015 - 3:31:43 PM
Last modification on : Thursday, March 5, 2020 - 2:05:19 PM
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Chaofeng Zhu, Xianghua Zhang, Hongli Ma, Claire Timlin. Sb-, Dy-, and Eu-doped oxyfluoride silicate glasses for light emitting diodes. Journal of Alloys and Compounds, Elsevier, 2015, 647, pp.880--885. ⟨10.1016/j.jallcom.2015.05.186⟩. ⟨hal-01231148⟩

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