Journal of Powder Materials

Article

[Korean]
Optical Properties of Spherical YAG:Ce³⁺ Phosphor Powders Synthesized by Atmospheric Plasma Spraying Method Appling PVA Solution Route and Domestic Aluminium Oxide Seed: Yong-Hyeon Kim, Sang-Jin Lee; J Powder Mater. 2023;30(5):424-430. Published online October 1, 2023; DOI: https://doi.org/10.4150/KPMI.2023.30.5.424

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Abstract PDF: YAG phosphor powders were fabricated by the atmospheric plasma spraying method with the spray-dried spherical YAG precursor. The YAG precursor slurry for the spray drying process was prepared by the PVA solution chemical processing utilizing a domestic easy-sintered aluminum oxide (Al₂O₃) powder as a seed. The homogenous and viscous slurry resulted in dense granules, not hollow or porous particles. The synthesized phosphor powders demonstrated a stable YAG phase, and excellent fluorescence properties of approximately 115% compared with commercial YAG:Ce³⁺ powder. The microstructure of the phosphor powder had a perfect spherical shape and an average particle s ize of a pprox imately 30 μm. As a r esult of t he PKG t est of t he YAG p hosphor p owder, t he s ynthesized phosphor powders exhibited an outstanding luminous intensity, and a peak wavelength was observed at 531 nm.

[Korean]
Synthesis of YAG:Ce³⁺ Phosphor Powders by Polymer Solution Route and Alumina Seed Application: Yong-Hyeon Kim, Sang-Jin Lee; J Korean Powder Metall Inst. 2013;20(1):37-42.; DOI: https://doi.org/10.4150/KPMI.2013.20.1.037

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YAG:Ce3+ phosphor powders were synthesized using a Al_2O_3 seed (average particle size: 5 µm) by the polymer solution route. PVA solution was added to the sol precursors consisting of the seed powder and metal nitrate salts for homogeneous mixing in atomic scale. All dried precursor gels were calcined at 500°C and then heated at 1400°Csim1500°C in N_2/H_2 atmosphere. The final powders were characterized by using XRD, SEM, PSA, PL and PKG test. All synthesized powders were crystallized to YAG phase without intermediate phases of YAM or YAP. The phosphor properties and morphologies of the synthesized powders were strongly dependent on the PVA content. Finally, the synthesized YAG:Ce3+ phosphor powder heated at 1500°C, which is prepared from 12:1 PVA content and has an average particle size of 15 µm, showed similar phosphor properties to a commercial phosphor powder.

Citations

Citations to this article as recorded by

Optimization of LiNiCoMnO2 Cathode Material Synthesis Using Polyvinyl Alcohol Solution Method for Improved Lithium-Ion Batteries
Ha Eun Kang, Tae Min Park, Sung Geun Song, Young Soo Yoon, Sang Jin Lee
Nanomaterials.2024; 14(13): 1096. CrossRef
Optical Properties of Spherical YAG:Ce³⁺ Phosphor Powders Synthesized by Atmospheric Plasma Spraying Method Appling PVA Solution Route and Domestic Aluminium Oxide Seed
Yong-Hyeon Kim, Sang-Jin Lee
journal of Korean Powder Metallurgy Institute.2023; 30(5): 424. CrossRef
Pulverization and Densification Behavior of YAG Powder Synthesized by PVA Polymer Solution Method
Hyun-Ho Im, Sang-Jin Lee
Korean Journal of Materials Research.2020; 30(11): 573. CrossRef
Effect of PVA Polymerization on Synthesis of YAG:Ce3+Phosphor Powders Prepared by a Solid-liquid Hybrid Route
A-Reum Kim, Sang-Jin Lee
Journal of the Korean Ceramic Society.2014; 51(5): 424. CrossRef

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