Dy:YAG phosphor coating using the solution precursor plasma spray process

Dianying Chen, Eric H. Jordan, Michael W. Renfro, Maurice Gell

Research output: Contribution to journalArticlepeer-review

21 Scopus citations

Abstract

Dy:YAG phosphor coatings were deposited using the solution precursor plasma spray process. The phase composition, microstructure, and photoluminescent properties of the as-deposited coatings were investigated. X-ray diffraction analysis confirmed that the coating is mainly composed of the YAG phase with a small amount of an intermediate YAP phase. Scanning electron microscopy micrograph revealed that the as-sprayed coating has columnar structures with a thickness of ∼60 μm. The measurement of photoluminescent properties indicated that the phosphor coating exhibits two predominant emission regions: a blue region (470-500 nm) and a yellow region (560-600 nm), which are assigned to 4F9/2-6H15/2 and 4F9/2-6H13/2 transitions, respectively.

Original languageEnglish
Pages (from-to)268-271
Number of pages4
JournalJournal of the American Ceramic Society
Volume92
Issue number1
DOIs
StatePublished - Jan 2009

ASJC Scopus subject areas

  • Ceramics and Composites
  • Materials Chemistry

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