Raman spectroscopy of Ce3+ doped Lu3Al5O12 single crystalline films grown onto Y3Al5O12 substrate

Dewo, Wioletta; Gorbenko, V.; Zorenko, Yu.; Runka, Tomasz

doi:10.1016/j.omx.2019.100029

Cited by 4 publications

(5 citation statements)

References 27 publications

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“…The characteristic luminescence of Mn 4+ ions, related to the 2 E → 4 A 2 transitions, should be observed at 696 nm (14,370 cm –1 ), see also ref. Additional lines recorded for the excitation in the near-infrared region (785 nm) in the range of 11,000–11,600 cm –1 are attributed to the electronic transitions of Nd 3+ ions as unintentional impurities …”

Section: Resultsmentioning

confidence: 73%

Mn-Doped XAlO₃ (X = Y, Tb) Single-Crystalline Films Grown onto YAlO₃ Substrates: Raman Spectroscopy Study toward Visualization of Mechanical Stress

et al. 2021

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Single-crystalline films (SCFs) of perovskites TbAlO3 (TbAP) and YAlO3 (YAP) doped with Mn ions were grown using the liquid-phase epitaxy (LPE) method on YAlO3 single-crystal (SC) substrates and investigated using Raman spectroscopy. The cross-section of the above-mentioned epitaxial structures was probed to obtain Raman signals of TbAP:Mn, YAP:Mn SCFs, and the YAP SC substrate. The undisturbed Raman signals of TbAP:Mn and YAP:Mn were recorded. For the TbAP:Mn sample, due to the difference in lattice constants between the SCF and the substrate, significant changes in the Raman spectra were observed. Over the interface between the SCF and the substrate, called the transition layer, gradual changes in the Raman spectra were observed. The changes are connected with the replacement of Tb3+ ions with Y3+ cations and are manifested as shifts of the modes assigned to translational, librational, and internal vibrations. Angular-dependent measurements of polarized spectra allowed determination of the TbAP:Mn SCF orientation in the ac plane (010). High-resolution luminescence spectra confirmed electronic transition attributed to Tb3+ cations and Nd3+ trace impurities in the YAP substrate. The Raman map recorded for the region close to the transition layer showed a shift of the Raman band at 552 cm–1 (YAP) related to the changes in the lattice constants and mechanical stress.

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Section: Resultsmentioning

confidence: 73%

Mn-Doped XAlO₃ (X = Y, Tb) Single-Crystalline Films Grown onto YAlO₃ Substrates: Raman Spectroscopy Study toward Visualization of Mechanical Stress

et al. 2021

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“…Recently, the graduated change in the peak positions in the confocal Raman spectra and features of rare-earth dopant luminescence was observed in the LuAG:Ce SCF grown onto YAG substrates with respective misfit between the garnet lattices about of 0.7%. [18] Therefore, we can also expect similarly changes in the mechanical and optical properties of the TbAG:Ce SCF, starting from SCF/substrate border towards the main volume of film. Such studies of TbAG/YAG epitaxial structures have been performed and the results of these investigations will be published soon.…”

Section: Resultsmentioning

confidence: 88%

“…Such studies of TbAG/YAG epitaxial structures have been performed and the results of these investigations will be published soon. [19] 2.2. Absorption, Luminescence, and Photoconversion Properties of TbAG:Ce SCF/YAG:Ce SC Composite Color Converters…”

Section: Resultsmentioning

confidence: 99%

Composite Color Converters Based on Tb₃Al₅O₁₂:Ce Single‐Crystalline Films and Y₃Al₅O₁₂:Ce Crystal Substrates

Markovskyi

Gorbenko

Zorenko

et al. 2021

Physica Rapid Research Ltrs

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The development of a novel composite phosphor converter based on singlecrystalline films of Tb 3 Al 5 O 12 :Ce garnet and Y 3 Al 5 O 12 :Ce single-crystal substrate is reported. The liquid phase epitaxy growth method is chosen for the fabrication of the Tb 3 Al 5 O 12 :Ce/Y 3 Al 5 O 12 :Ce epitaxial structures with excellent photoconversion properties for application in white light-emitting diodes (LEDs). The influence of Ce 3þ concentration and thickness of Y 3 Al 5 O 12 :Ce substrate as well as the thickness of Tb 3 Al 5 O 12 :Ce films on the photoconversion properties is investigated for the construction of warm white LEDs prototypes based on the developed composite phosphor converters.

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“…Because the A 1g mode of the LuAG crystal at 797 cm −1 originates from the significant stretching of the tetrahedral and octahedral bonds, it is affected more by strain than other low frequency modes. [37][38][39] The peak position of the A 1g mode was selected as the index, and the peak positions were fitted with the Lorentz function. The variations of the Raman shift are shown in Fig.…”

Section: Internal Stress and Infrared Transmittance Of The Luag Scfsmentioning

confidence: 99%

Anisotropic bubble defects and stress distribution in LuAG single-crystal fibers grown by the laser-heated pedestal growth method

et al. 2022

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Raman spectroscopy of Ce3+ doped Lu3Al5O12 single crystalline films grown onto Y3Al5O12 substrate

Cited by 4 publications

References 27 publications

Mn-Doped XAlO₃ (X = Y, Tb) Single-Crystalline Films Grown onto YAlO₃ Substrates: Raman Spectroscopy Study toward Visualization of Mechanical Stress

Mn-Doped XAlO₃ (X = Y, Tb) Single-Crystalline Films Grown onto YAlO₃ Substrates: Raman Spectroscopy Study toward Visualization of Mechanical Stress

Composite Color Converters Based on Tb₃Al₅O₁₂:Ce Single‐Crystalline Films and Y₃Al₅O₁₂:Ce Crystal Substrates

Anisotropic bubble defects and stress distribution in LuAG single-crystal fibers grown by the laser-heated pedestal growth method

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Raman spectroscopy of Ce3+ doped Lu3Al5O12 single crystalline films grown onto Y3Al5O12 substrate

Cited by 4 publications

References 27 publications

Mn-Doped XAlO3 (X = Y, Tb) Single-Crystalline Films Grown onto YAlO3 Substrates: Raman Spectroscopy Study toward Visualization of Mechanical Stress

Mn-Doped XAlO3 (X = Y, Tb) Single-Crystalline Films Grown onto YAlO3 Substrates: Raman Spectroscopy Study toward Visualization of Mechanical Stress

Composite Color Converters Based on Tb3Al5O12:Ce Single‐Crystalline Films and Y3Al5O12:Ce Crystal Substrates

Anisotropic bubble defects and stress distribution in LuAG single-crystal fibers grown by the laser-heated pedestal growth method

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Mn-Doped XAlO₃ (X = Y, Tb) Single-Crystalline Films Grown onto YAlO₃ Substrates: Raman Spectroscopy Study toward Visualization of Mechanical Stress

Mn-Doped XAlO₃ (X = Y, Tb) Single-Crystalline Films Grown onto YAlO₃ Substrates: Raman Spectroscopy Study toward Visualization of Mechanical Stress

Composite Color Converters Based on Tb₃Al₅O₁₂:Ce Single‐Crystalline Films and Y₃Al₅O₁₂:Ce Crystal Substrates