Zn2SiO4:Mn phosphor particles prepared by spray pyrolysis using a filter expansion aerosol generator

Yun Chan Kang, S. B. Park

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Abstract

Manganese-doped zinc silicate phosphor particles were prepared by spray pyrolysis using FEAG (Filter Expansion Aerosol Generator) process. The characteristics of cathodoluminescence, crystallinity, and morphology of Zn2SiO4:Mn particles were investigated. The as-prepared and calcined particles were spherical shape and 1 micrometer in diameter, and aggregation between particles was not observed even after calcination at high temperature. The particles prepared at 600 °C had amorphous phase, and zinc oxide peaks appeared at 700 °C. The peaks of the β-Zn2SiO4 with orthorhombic structure was obtained at 1000 °C. Pure phase willemite structure was obtained after calcination at 1200 °C for 5 h when adding the 80-90% of stoichiometric amount of zinc nitrate. The maximum cathodoluminescence (CL) intensity of particles was obtained at 1.3 mol% doping concentration of Mn. The particles calcined at 1200 °C for 5 h has the maximum CL intensity of 198 cd/m2.

Original languageEnglish
Pages (from-to)1143-1151
Number of pages9
JournalMaterials Research Bulletin
Volume35
Issue number7
DOIs
Publication statusPublished - 2000 Jan 1
Externally publishedYes

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ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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