Comparison of YAG: Eu phosphor synthesized by supercritical water and solid-state methods in a batch reactor

Min Jae Yoon; Jung Hyun In; Hyeon Cheol Lee; Chang Ha Lee

doi:10.1007/BF02705938

Comparison of YAG: Eu phosphor synthesized by supercritical water and solid-state methods in a batch reactor

Min Jae Yoon, Jung Hyun In, Hyeon Cheol Lee, Chang Ha Lee

Department of Chemical and Biomolecular Engineering

Research output: Contribution to journal › Article

12 Citations (Scopus)

Abstract

Phosphor yttrium aluminum garnet (Y₃Al₅O ₁₂, YAG) doped with Eu (10 at%) was synthesized by supercritical water (SCW) and solid-state methods in a batch reactor. The crystals, morphologies and luminescent properties of the phosphors obtained from different pH conditions in the SCW were studied. Pure YAG phase was successfully synthesized at the alkaline condition in the SCW without formation of intermediate phases, while the size and luminescent property of YAG: Eu were strongly affected by pH condition. The luminescent intensity of YAG: Eu by the SCW method without further thermal treatment is stronger than that by the solid-state method with thermal treatment.

Original language	English
Pages (from-to)	842-846
Number of pages	5
Journal	Korean Journal of Chemical Engineering
Volume	23
Issue number	5
DOIs	https://doi.org/10.1007/BF02705938
Publication status	Published - 2006 Sep 1

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All Science Journal Classification (ASJC) codes

Chemistry(all)
Chemical Engineering(all)

Cite this

Yoon, M. J., In, J. H., Lee, H. C., & Lee, C. H. (2006). Comparison of YAG: Eu phosphor synthesized by supercritical water and solid-state methods in a batch reactor. Korean Journal of Chemical Engineering, 23(5), 842-846. https://doi.org/10.1007/BF02705938

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abstract = "Phosphor yttrium aluminum garnet (Y3Al5O 12, YAG) doped with Eu (10 at%) was synthesized by supercritical water (SCW) and solid-state methods in a batch reactor. The crystals, morphologies and luminescent properties of the phosphors obtained from different pH conditions in the SCW were studied. Pure YAG phase was successfully synthesized at the alkaline condition in the SCW without formation of intermediate phases, while the size and luminescent property of YAG: Eu were strongly affected by pH condition. The luminescent intensity of YAG: Eu by the SCW method without further thermal treatment is stronger than that by the solid-state method with thermal treatment.",

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10.1007/BF02705938