Nanosized strontium aluminate phosphors prepared via a reverse microemulsion route
Resource
Materials Science and Engineering: B 140 (3): 218-221
Journal
Materials Science and Engineering: B
Journal Volume
140
Journal Issue
3
Pages
218-221
Date Issued
2007
Date
2007
Author(s)
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. © 2007 Elsevier B.V. All rights reserved.
Type
journal article
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