Abstract
Nano-sized Y2O3: Eu phosphor powders were prepared by spray pyrolysis. The precursor powders with a hollow morphology and thin walled structure were obtained from the spray solution with ethylenediaminetetraacetic acid, citric acid and boric acid turned into the Y2O3: Eu phosphor powders with mean sizes of 140 and 450 nm at high post-treatment temperatures of 1050 and 1150 °C. The optimum concentrations of ethylenediaminetetraacetic acid and citric acid to prepare the nano-sized Y2O3: Eu phosphor powders were each 0.1M. The Y2O3: Eu phosphor powders had regular morphologies and narrow size distributions. The mean crystallite sizes of the phosphor powders post-treated at temperatures of 1050 and 1150 oC were 40 and 44 nm. The phosphor powder post-treated at a temperature of 1050 oC had the highest photoluminescence intensity under vacuum ultraviolet illumination.
Original language | English |
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Pages (from-to) | 656-659 |
Number of pages | 4 |
Journal | Journal of Ceramic Processing Research |
Volume | 11 |
Issue number | 6 |
Publication status | Published - 2010 |
Externally published | Yes |
Keywords
- Display materialintroduction
- Nano powder
- Phosphor
- Spray pyrolysis
ASJC Scopus subject areas
- Ceramics and Composites