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Journals / Sakarya University Journal of Science / 2026 / Volume: 25 Issue: 4

Photoluminescence Investigation of Tb Doped Yb2O3 Phosphors Produced by Precipitation Method

Fatma Unal(HİTİT ÜNİVERSİTESİ)0000-0003-4476-2544
Pages
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Publication Date
2021-08-30
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

However, the dopant rate was more effective on the PL intensity than the CS.

📌 3 Key Takeaways

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Objective & Hypothesis:Un-doped and Tb doped ytterbium oxide (Yb 2 O 3 :Tb 3+ ) particles with different dopant rates (2, 4, 6 and 8 at. %) were produced by precipitation method, subsequently by calcination at 1000 °C for 2 h.
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Key Findings & Data:The crystal structure of all the particles had cubic Yb 2 O 3 structure.
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Conclusion & Impact:However, the dopant rate was more effective on the PL intensity than the CS.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Terbium doped ytterbium oxide phosphors · photoluminescence emission · precipitation method

Abstract

Un-doped and Tb doped ytterbium oxide (Yb 2 O 3 :Tb 3+ ) particles with different dopant rates (2, 4, 6 and 8 at. %) were produced by precipitation method, subsequently by calcination at 1000 °C for 2 h. The crystal structure of all the particles had cubic Yb 2 O 3 structure. The presence of Tb ion in Yb 2 O 3 host structure has been proven from the XRD results. The crystal structure expanded compared to un-doped Yb 2 O 3 particles with the dopant addition confirming lattice parameter (LP) values. LP and crystallite size (CS) values were in the range of 10.428 – 10.596 Å and 16 – 25 nm, respectively. Only one sharp peak was observed at 506 nm corresponding to 5 D 4 – 7 F 6 transition (green emission) from photoluminescence (PL) spectra of the phosphor particles. The PL emission intensities were strongly dependent on both CS and dopant rate. However, the dopant rate was more effective on the PL intensity than the CS.

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Cite This Article

Unal, F. (2021). Photoluminescence Investigation of Tb Doped Yb2O3 Phosphors Produced by Precipitation Method. Sakarya University Journal of Science, Volume: 25 Issue: 4. https://doi.org/10.16984/saufenbilder.895402

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