Abstract
ZnGa2O4:Mn phosphor particles of spherical shape, clean surface, filled morphology, and improved photoluminescence characteristics were prepared by a modified spray pyrolysis technique and the effect of precursor type on the luminescence intensity of ZnGa2O4:Mn was investigated. The morphology control of ZnGa2O4:Mn phosphor particles in spray pyrolysis was attempted by using the stable colloidal solution obtained by the liquid phase reaction method as a spraying solution. The ZnGa2O4:Mn particles prepared from the colloidal solution had a spherical shape, clean surface, and filled morphology even after post-treatment at 1200°C. The ZnGa2O4:Mn particles prepared from Zn chloride and Mn acetate showed the maximum photoluminescence intensity, which was 24% higher than that of particles prepared from Zn nitrate and Mn nitrate.
Original language | English |
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Pages (from-to) | 4559-4562 |
Number of pages | 4 |
Journal | Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers |
Volume | 41 |
Issue number | 7 A |
DOIs | |
Publication status | Published - 2002 Jul |
Externally published | Yes |
Keywords
- Colloidal solution
- Phosphor
- Photoluminescence
- Spray pyrolysis
- ZnGaO:Mn
ASJC Scopus subject areas
- General Engineering
- General Physics and Astronomy