Abstract
The effect of LiCl flux on the luminescence characteristics, crystallinity and morphology of Y2O3:Eu phosphor particles was investigated. The maximum PL intensity of particles directly prepared at 1300 °C from solution with LiCl flux was 50% higher than that of particles prepared from solution without flux. The PL intensities of particles prepared at 700 and 900 °C from flux solution were 200 and 134% of those of particles prepared from solution without flux at the same preparation temperatures. Activation of Eu dopant was fully occurred even at 700 °C when LiCl flux was used while high temperature above 1100 °C was required without flux, LiCl flux played an important role of improving activation degree of Eu dopant into Y2O3 host and reducing defects of particles.
Original language | English |
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Pages (from-to) | 1661-1665 |
Number of pages | 5 |
Journal | Journal of the European Ceramic Society |
Volume | 22 |
Issue number | 9-10 |
DOIs | |
Publication status | Published - 2002 Sept |
Externally published | Yes |
Keywords
- Flux
- LiCl flux
- Phosphor
- Photoluminescence
- Spray pyrolysis
- YO:Eu
ASJC Scopus subject areas
- Ceramics and Composites
- Materials Chemistry