Photoluminescence of Eu³⁺ Ions in Lu₃(Ga,In)₅O₁₂:Eu³⁺ Films Grown by LPE Method

Abstract:

High quality thin epitaxial films of Lu₃(Ga,In)₅O₁₂:Eu³⁺ were grown by liquid phase epitaxy (LPE) method from Bi₂O₃-based flux. Excitation and emission spectra as well as luminescence decay kinetics of Lu₃(Ga,In)₅O₁₂:Eu³⁺ epitaxial films were studied under UV excitation. The photoluminescence spectra of Eu³⁺ ions in Lu₃(Ga,In)₅O₁₂:Eu³⁺ are characteristic to the f→f transition in the Eu³⁺ ions that occupied dodecahedral sites in the garnet structure. The efficient energy transfer between Bi³⁺→Eu³⁺ is observed at the excitation of Lu₃(Ga,In)₅O₁₂:Eu³⁺ films in Bi³⁺ excitation band with maximum at 288 nm. The Eu³⁺ decay curves of all investigated films show non-single exponential behavior at room temperature.

• Periodical: Solid State Phenomena (Volume 230)
• Pages: 166-171
• DOI: https://doi.org/10.4028/www.scientific.net/SSP.230.166
• Online since: June 2015
• Authors: Andriy Luchechko*, I.I. Syvorotka, Yaroslav Zakharko, Igor M. Syvorotka
• Keywords: Decay Time, Epitaxial Films, Eu³⁺ Ions, Liquid-Phase Epitaxy, Lu₃(Ga,In)₅O₁₂ Garnet, Photoluminescence (PL)

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