Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1531411 | Materials Science and Engineering: B | 2007 | 4 Pages |
Abstract
Nanosized strontium aluminate phosphors co-activated by Eu2+ and Dy3+ were prepared via a novel reverse microemulsion process. This new synthesis technique lowered the synthesis temperature of SrAl2O4: Eu2+, Dy3+ phosphors to as low as 900 °C, and also reduced the particle size to the nanometer scale (around 40 nm). In the microemulsion process, the constituent cations were trapped by numerous nano-scaled micelles, leading to a shortening of the inter-diffusion length and enhancement of the precursor reactivity. The excitation intensity and emission peaks of nanosized SrAl2O4: Eu2+, Dy3+ phosphors significantly increased with increasing heating temperatures.
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Authors
Chung-Hsin Lu, Shih-Yen Chen, Chia-Hao Hsu,