Journal of Powder Materials (한국분말재료학회지)

The Korean Powder Metallurgy & Materials Institute (한국분말재료학회 (*구 분말야금학회))
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Optical Properties of Spherical YAG:Ce3+ Phosphor Powders Synthesized by Atmospheric Plasma Spraying Method Appling PVA Solution Route and Domestic Aluminium Oxide Seed

PVA 용액법과 국산 산화알루미늄을 적용하여 대기 플라즈마 용사법으로 합성된 구형의 YAG:Ce3+ 형광체의 발광특성

  • Yong-Hyeon Kim (The Research Institute of Ceramic Industry Technology, Mokpo National University) ;
  • Sang-Jin Lee (The Research Institute of Ceramic Industry Technology, Mokpo National University)
  • 김용현 (목포대학교 세라믹산업기술연구소) ;
  • 이상진 (목포대학교 세라믹산업기술연구소)
  • Received : 2023.10.01
  • Accepted : 2023.10.26
  • Published : 2023.10.28
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Abstract

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 size of approx imately 30 ㎛. As a result of the PKG test of the YAG phosphor powder, the synthesized phosphor powders exhibited an outstanding luminous intensity, and a peak wavelength was observed at 531 nm.

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Acknowledgement

이 연구는 2023년도 산업통상자원부 및 산업기술평가관리원(KEIT) 연구비 지원에 의한 연구임(과제번호 : 20012914)

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