Effect of manganese source material on characteristics of Zn 2SiO4:Mn phosphor particles prepared by spray pyrolysis

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Abstract

The type of manganese material used as an activator source affected the luminous characteristics of Z2SiO4:Mn phosphor particles in spray pyrolysis. The prepared Zn2SiO4:Mn particles had different optimum post-treatment temperatures and reduction conditions for obtaining the maximum photoluminescence intensity from the manganese source material used. The particles prepared from manganese nitrate and sulfate had higher photoluminescence intensities than the commercial product prepared by solid-state reaction method after post-treatment at 1200°C without using a reduction process. However, the maximum photoluminescence intensity under vacuum ultraviolet excitation was obtained from the particles prepared from manganese chloride, post-treated at 1120°C for 5 h and reduced at 775°C, which was 10% higher than that of the commercial product. Manganese source material also affected the decay time (τ10) of the Zn2SiO 4:Mn phosphor particles. The manganese chloride was favored for the formation of the phosphor particles having a short decay time and high brightness under vacuum ultraviolet excitation.

Original languageEnglish
Pages (from-to)233-234
Number of pages2
JournalJapanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
Volume44
Issue number1 A
DOIs
Publication statusPublished - 2005 Jan 1
Externally publishedYes

Fingerprint

Spray pyrolysis
Phosphors
phosphors
Manganese
pyrolysis
sprayers
manganese
Photoluminescence
photoluminescence
chlorides
Vacuum
vacuum
decay
products
Solid state reactions
excitation
nitrates
Luminance
Nitrates
sulfates

Keywords

  • Display
  • Phosphor
  • Photoluminescence
  • Spray pyrolysis

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

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title = "Effect of manganese source material on characteristics of Zn 2SiO4:Mn phosphor particles prepared by spray pyrolysis",
abstract = "The type of manganese material used as an activator source affected the luminous characteristics of Z2SiO4:Mn phosphor particles in spray pyrolysis. The prepared Zn2SiO4:Mn particles had different optimum post-treatment temperatures and reduction conditions for obtaining the maximum photoluminescence intensity from the manganese source material used. The particles prepared from manganese nitrate and sulfate had higher photoluminescence intensities than the commercial product prepared by solid-state reaction method after post-treatment at 1200°C without using a reduction process. However, the maximum photoluminescence intensity under vacuum ultraviolet excitation was obtained from the particles prepared from manganese chloride, post-treated at 1120°C for 5 h and reduced at 775°C, which was 10{\%} higher than that of the commercial product. Manganese source material also affected the decay time (τ10) of the Zn2SiO 4:Mn phosphor particles. The manganese chloride was favored for the formation of the phosphor particles having a short decay time and high brightness under vacuum ultraviolet excitation.",
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AU - Kang, Yun Chan

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N2 - The type of manganese material used as an activator source affected the luminous characteristics of Z2SiO4:Mn phosphor particles in spray pyrolysis. The prepared Zn2SiO4:Mn particles had different optimum post-treatment temperatures and reduction conditions for obtaining the maximum photoluminescence intensity from the manganese source material used. The particles prepared from manganese nitrate and sulfate had higher photoluminescence intensities than the commercial product prepared by solid-state reaction method after post-treatment at 1200°C without using a reduction process. However, the maximum photoluminescence intensity under vacuum ultraviolet excitation was obtained from the particles prepared from manganese chloride, post-treated at 1120°C for 5 h and reduced at 775°C, which was 10% higher than that of the commercial product. Manganese source material also affected the decay time (τ10) of the Zn2SiO 4:Mn phosphor particles. The manganese chloride was favored for the formation of the phosphor particles having a short decay time and high brightness under vacuum ultraviolet excitation.

AB - The type of manganese material used as an activator source affected the luminous characteristics of Z2SiO4:Mn phosphor particles in spray pyrolysis. The prepared Zn2SiO4:Mn particles had different optimum post-treatment temperatures and reduction conditions for obtaining the maximum photoluminescence intensity from the manganese source material used. The particles prepared from manganese nitrate and sulfate had higher photoluminescence intensities than the commercial product prepared by solid-state reaction method after post-treatment at 1200°C without using a reduction process. However, the maximum photoluminescence intensity under vacuum ultraviolet excitation was obtained from the particles prepared from manganese chloride, post-treated at 1120°C for 5 h and reduced at 775°C, which was 10% higher than that of the commercial product. Manganese source material also affected the decay time (τ10) of the Zn2SiO 4:Mn phosphor particles. The manganese chloride was favored for the formation of the phosphor particles having a short decay time and high brightness under vacuum ultraviolet excitation.

KW - Display

KW - Phosphor

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