Korean Journal of Materials Research (한국재료학회지)

Materials Research Society of Korea (한국재료학회)
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Preparation of Green-Light Emitting BAM:Mn Phosphor Particles by High Temperature Spray Pyrolysis

고온 분무열분해 공정에 의한 녹색 발광의 BAM:Mn 형광체 합성

  • Ju Seo Hee (Department of Chemical Engineering, Konkuk University) ;
  • Koo Hye Young (Department of Chemical Engineering, Konkuk University) ;
  • Kim Do Youp (Department of Chemical Engineering, Konkuk University) ;
  • Kang Yun Chan (Department of Chemical Engineering, Konkuk University)
  • Published : 2005.08.01
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Abstract

Green-light emitting $BaMgAl_{10}O_{19}:Mn^{2+}$ (BAM:Mn) phosphor particles were prepared by spray Pyrolysis. The effect of reactor temperature and flow rate of carrier gas in the spray Pyrolysis on the morphology, crystallinity and photoluminescence characteristics under vacuum ultraviolet were investigated. The morphology of the as-Prepared Particles obtained by spray Pyrolysis had spherical shape and non-aggregation characteristics regardless of the reactor temperature. The spherical shape of the as-prepared Particles obtained by spray pyrolysis at low temperature disappeared after Post-treatment. On the other hand the as-Prepared Particles obtained by spray Pyrolysis at $1600^{\circ}C$ maintained spherical shape and non-aggregation characteristics after post-treatment at $1400^{\circ}C$ for 3 h under reducing atmosphere. The BAM:Mn Phosphor Particles Prepared by spray Pyrolysis at different reactor temperatures had pure crystal structure and high photoluminescence intensities under vacuum ultraviolet after post-treatment. BAM:Mn phosphor particles prepared by spray Pyrolysis at low How rate of carrier gas had complete spherical shape and filed morphology and high photoluminescence intensity after post-treatment under reducing atmosphere.

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References

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