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(CeTb)MgAl11O19 Phosphor Particles Prepared by Spray Pyrolysis from Spray Solution Containing Citric Acid and Ethylene Glycol
- Source :
- Japanese Journal of Applied Physics. 44:4975
- Publication Year :
- 2005
- Publisher :
- IOP Publishing, 2005.
-
Abstract
- (CeTb)MgAl11O19 (CTMA) phosphor particles were prepared by spray pyrolysis from polymeric precursor solutions under severe preparation conditions. Citric acid and ethylene glycol used as polymeric precursors formed as-prepared and post-treated (CeTb)MgAl11O19 phosphor particles with a spherical shape and a dense morphology. The CTMA phosphor particles prepared from polymeric precursor solutions at 1600°C had a completely spherical shape, a dense morphology, and a nonaggregated morphology after post-treatment at 1400°C. The CTMA phosphor particles prepared from the polymeric precursor solution had a lower impurity content than those prepared from a pure aqueous solution. All the phosphor particles prepared from the polymeric precursor solution had higher photoluminescence intensities than those prepared from the pure aqueous solution at all temperatures. The photoluminescence intensity of the CTMA phosphor particles prepared from the polymeric precursor solution was 108% that of the phosphor particles prepared from the pure aqueous solution at 1600°C.
- Subjects :
- Photoluminescence
Morphology (linguistics)
Aqueous solution
Materials science
Inorganic chemistry
technology, industry, and agriculture
General Engineering
General Physics and Astronomy
Phosphor
macromolecular substances
Spray pyrolysis
chemistry.chemical_compound
chemistry
Chemical engineering
Impurity
Citric acid
Ethylene glycol
Subjects
Details
- ISSN :
- 13474065 and 00214922
- Volume :
- 44
- Database :
- OpenAIRE
- Journal :
- Japanese Journal of Applied Physics
- Accession number :
- edsair.doi...........fea0efe93971fefc2764b384e520b192