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Journal of Spectroscopy
Volume 2013, Article ID 312519, 5 pages
http://dx.doi.org/10.1155/2013/312519
Research Article

Photoluminescence Spectroscopic Study of BaMgAl10O17:Eu Phosphor Coated with CaF2 via a Sol-Gel Process

1School of Material Science and Engineering, Xi’an University of Technology, Xi’an 710048, China
2School of Physical Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
3IRICO Group Corporation, Xianyang 712000, China

Received 30 June 2012; Accepted 21 January 2013

Academic Editor: Paola Luches

Copyright © 2013 Feng Li et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

CaF2 coatings on the surface of BaMgAl10O17:Eu (BAM) were prepared by a sol-gel process, and the optical properties and antithermal degradation properties were analyzed by photoluminescence spectra recorded under 254 nm and 147 nm excitation. The results indicate that BAM particles were successfully coated with CaF2 and CaF2 coatings show an interesting property to enhance the blue emission intensity of BAM. The optimum antithermal degradation properties were obtained at the weight ratio 0.4 wt% under 254 nm excitation and 0.3 wt% under 147 nm excitation, respectively.