Brightness and decay time of Zn2SiO4:Mn phosphor particles with spherical shape and fine size

Yun Chan Kang, H. D. Park

Research output: Contribution to journalArticle

48 Citations (Scopus)

Abstract

Green-light-emitting Zn2SiO4:Mn phosphor particles were synthesized by modified large-scale spray pyrolysis using a colloidal solution containing fumed silica particles. The particles had a fine size, filled morphology, spherical shape and non-aggregation characteristics even after post-treatment at 1150°C. The luminescence characteristics of Zn2SiO4:Mn phosphor particles having spherical shape, such as brightness and decay time under VUV excitation light, were investigated as a function of Mn content. The luminescence intensity exhibits a maximum at 5 mol% Mn-doped powder. The decay time increases consistently with decreasing Mn content and more saturated color coordinates are obtained with the composition having 12 mol% Mn. As a consequence, the 10 mol% Mn-doped powder proved to provide a good combination of favorable luminance and acceptable decay time. The influence of post-treatment temperature on the decay time and photoluminescence characteristics of Zn2SiO4:Mn particles was also investigated. Particles post-treated at 1155°C had the maximum photoluminescence intensity, which was identical to 113% that of the commercial product, and a comparable decay time of 5.8 ms.

Original languageEnglish
Pages (from-to)529-532
Number of pages4
JournalApplied Physics A: Materials Science and Processing
Volume77
Issue number3-4
DOIs
Publication statusPublished - 2003 Aug 1
Externally publishedYes

Fingerprint

Phosphors
Powders
phosphors
Luminescence
Luminance
Photoluminescence
brightness
Methyl Green
Spray pyrolysis
decay
Silicon Dioxide
Silica
Color
Chemical analysis
luminescence
photoluminescence
luminance
Temperature
pyrolysis
sprayers

ASJC Scopus subject areas

  • Materials Science(all)
  • Physics and Astronomy (miscellaneous)

Cite this

Brightness and decay time of Zn2SiO4:Mn phosphor particles with spherical shape and fine size. / Kang, Yun Chan; Park, H. D.

In: Applied Physics A: Materials Science and Processing, Vol. 77, No. 3-4, 01.08.2003, p. 529-532.

Research output: Contribution to journalArticle

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