Comparison of the Luminescent Properties of Y3Al5O12:Pr Crystals and Films

Zorenko, T.; Gorbenko, V.; Nizankovskiy, S.; Zorenko, Yuriy

doi:10.12693/aphyspola.133.948

Cited by 7 publications

(2 citation statements)

References 15 publications

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“… a All the band gap values are expressed in electronvolts. E exp,av exc = 6.90 eV is the averaged value between those reported in refs , , , and − . …”

Section: Modeling Of Eg Versus Xal Data For Y3(ga(1–x)al X )5o12 (Yag...mentioning

confidence: 99%

Band Gap Modeling of Different Ternary and Quaternary Alumina Garnet Phases Y₃(Al_xGa_1–x)₅O₁₂ (YAGG) and Lu₃(Al_xGa_1–x)₅O₁₂ (LuAGG). A Semiempirical Approach

et al. 2022

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A further generalization to quaternary oxide systems of the modeling equation of optical band gap values, based on the semiempirical correlation between the differences in the electronegativity of oxygen and the average cationic electronegativity, proposed some years ago, has been carried out by expanding the approach recently employed for ternary mixed oxides. The choice of oxide polymorphs and their influence on the fitting procedure of an experimental data set is evidenced by a detailed discussion of the fitting process of the literature's experimental band gap data pertaining two quaternary oxide systems of the garnet family, namely, Y 3 (Al x Ga 1−x ) 5 O 12 (YAGG) and Lu 3 (Al x Ga 1−x ) 5 O 12 (LuAGG), playing an important role in several engineering applications. The two investigated systems, moreover, span a quite large range of band gap energy values (from ∼5.5 to ∼7.5 eV), as a function of the Al/Ga ratio, allowing a rigorous test of the proposed modeling equation. Based on the wide existing literature on the presence of excitonic effects in the investigated systems some empirical correlations between an optical gap and a band gap in the presence of excitonic effects are suggested, too, which could provide some rationale to overcome the discrepancies frequently encountered in comparing band gap values reported in the literature for the same materials. The results of this work confirm the ability of this semiempirical approach in providing good agreement between experimental and theoretical band gap values also for very complex systems, where more sophisticated density functional theory-based methods face some difficulties in predicting the correct values.

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“… a All the band gap values are expressed in electronvolts. E exp,av exc = 6.90 eV is the averaged value between those reported in refs , , , and − . …”

Section: Modeling Of Eg Versus Xal Data For Y3(ga(1–x)al X )5o12 (Yag...mentioning

confidence: 99%

Band Gap Modeling of Different Ternary and Quaternary Alumina Garnet Phases Y₃(Al_xGa_1–x)₅O₁₂ (YAGG) and Lu₃(Al_xGa_1–x)₅O₁₂ (LuAGG). A Semiempirical Approach

et al. 2022

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“…On the contrary, the YAG-SCFs are completely free of such defects due to their much lower temperature of formation (≈1000 °C). [43][44][45]…”

Section: Resultsmentioning

confidence: 99%

YAG:Tb@YAG:Pr Single Crystalline Dual‐Layer Phosphor. An Alternative Approach to Multimodal Wide Range Luminescence Thermometry

Jedoń,

Zych,

Zeler

et al. 2024

Advanced Optical Materials

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The SC‐YAG:Tb@YAG:Pr‐SCF composite epitaxial structure consisting of a 1 mm thick single crystal substrate of YAG:Tb garnet and a thin (9 µm) single crystalline film of YAG:Pr garnet is fabricated, and its luminescent properties are examined toward luminescence thermometry. The possibility to efficiently excite, individually or simultaneously, the Tb3+ and Pr3+ dopants by their intense allowed 4f→5d transitions is executed to reach relative thermal sensitivity higher than 1% K−1 over the range of temperatures as wide as 100–625 K and above 0.5% K−1 over 13–650 K. The obtained results demonstrate that using intra‐ and inter‐configurational emission transitions of Pr3+ and other lanthanides makes it possible to design wide‐range luminescence thermometers with high sensitivity spanning the entire operating limits.

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Ga-modified YAG:Pr3+ dual-mode tunable luminescence thermometers

Bolek

Zeler

Brites

et al. 2021

Chemical Engineering Journal

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Comparison of the Luminescent Properties of Y₃Al₅O₁₂:Pr Crystals and Films

Cited by 7 publications

References 15 publications

Band Gap Modeling of Different Ternary and Quaternary Alumina Garnet Phases Y₃(Al_xGa_1–x)₅O₁₂ (YAGG) and Lu₃(Al_xGa_1–x)₅O₁₂ (LuAGG). A Semiempirical Approach

Band Gap Modeling of Different Ternary and Quaternary Alumina Garnet Phases Y₃(Al_xGa_1–x)₅O₁₂ (YAGG) and Lu₃(Al_xGa_1–x)₅O₁₂ (LuAGG). A Semiempirical Approach

YAG:Tb@YAG:Pr Single Crystalline Dual‐Layer Phosphor. An Alternative Approach to Multimodal Wide Range Luminescence Thermometry

Ga-modified YAG:Pr3+ dual-mode tunable luminescence thermometers

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Comparison of the Luminescent Properties of Y3Al5O12:Pr Crystals and Films

Cited by 7 publications

References 15 publications

Band Gap Modeling of Different Ternary and Quaternary Alumina Garnet Phases Y3(AlxGa1–x)5O12 (YAGG) and Lu3(AlxGa1–x)5O12 (LuAGG). A Semiempirical Approach

Band Gap Modeling of Different Ternary and Quaternary Alumina Garnet Phases Y3(AlxGa1–x)5O12 (YAGG) and Lu3(AlxGa1–x)5O12 (LuAGG). A Semiempirical Approach

YAG:Tb@YAG:Pr Single Crystalline Dual‐Layer Phosphor. An Alternative Approach to Multimodal Wide Range Luminescence Thermometry

Ga-modified YAG:Pr3+ dual-mode tunable luminescence thermometers

Contact Info

Product

Resources

About

Comparison of the Luminescent Properties of Y₃Al₅O₁₂:Pr Crystals and Films

Band Gap Modeling of Different Ternary and Quaternary Alumina Garnet Phases Y₃(Al_xGa_1–x)₅O₁₂ (YAGG) and Lu₃(Al_xGa_1–x)₅O₁₂ (LuAGG). A Semiempirical Approach

Band Gap Modeling of Different Ternary and Quaternary Alumina Garnet Phases Y₃(Al_xGa_1–x)₅O₁₂ (YAGG) and Lu₃(Al_xGa_1–x)₅O₁₂ (LuAGG). A Semiempirical Approach