Morphology and luminescent properties of BaMgAl10O17:Eu2+ phosphor synthesized by a hydrothermal homogeneous precipitation method
Article first published online: 19 NOV 2012
Copyright © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
physica status solidi (a)
Volume 210, Issue 2, pages 378–382, February 2013
How to Cite
Zhang, Z. H., Chen, L., Gan, Q. H., Tian, Q., Chen, C. L. and Huang, Z. L. (2013), Morphology and luminescent properties of BaMgAl10O17:Eu2+ phosphor synthesized by a hydrothermal homogeneous precipitation method. Phys. Status Solidi A, 210: 378–382. doi: 10.1002/pssa.201228264
- Issue published online: 15 FEB 2013
- Article first published online: 19 NOV 2012
- Manuscript Accepted: 24 OCT 2012
- Manuscript Revised: 12 OCT 2012
- Manuscript Received: 28 APR 2012
- luminescent properties;
In this paper, we report a morphology controllable and energetically efficient route to prepare blue-emitting BaMgAl10O17:Eu2+ (BAM) phosphor, a hydrothermal homogeneous precipitation/calcinations method. Utilizing a urea homogeneous hydrolysis reaction within a sealed hydrothermal container with self-generated pressure, well-crystallized BAM with regular morphologies was obtained at a urea dosage of nurea:ncations = 7.5 and a calcining temperature of 1200 °C. The as-prepared phosphor was granular in shape and had an average particle size of about 0.1 µm without using any additional agents. With the template-directed function of polyethylene glycol or β-cyclodextrin, the as-prepared phosphors respectively, had rod-like and flake-like shapes. According to the photoluminescent results, rod-like or flake-like BAM showed similar luminescent characteristics with granular BAM except slightly stronger luminescent intensity. When the calcining temperature was raised to 1400 °C, the emission intensity of the sample prepared by hydrothermal homogeneous precipitation was stronger than that of commercial BAM.
Emission spectra of the produced BAM powders fired at (a) 1200 °C and (b) 1400 °C. The measured emission spectrum of commercial BAM powder is also plotted as (c) (λex = 254 nm).