B. Dunn—contributing editor
The Luminescence Properties of Eu3+-Doped Borotungstate Gd4B2WO12 Phosphors
Article first published online: 4 APR 2011
© 2011 The American Ceramic Society
Journal of the American Ceramic Society
Volume 94, Issue 10, pages 3380–3385, October 2011
How to Cite
Zhu, R., Huang, Y. and Seo, H. J. (2011), The Luminescence Properties of Eu3+-Doped Borotungstate Gd4B2WO12 Phosphors. Journal of the American Ceramic Society, 94: 3380–3385. doi: 10.1111/j.1551-2916.2011.04502.x
This work was supported by Mid-Career Researcher Program through National Research Foundation (NRF) grant funded by the Ministry of Education, Science and Technology (MEST) (No. 2009-0078682).
- Issue published online: 4 OCT 2011
- Article first published online: 4 APR 2011
- Manuscript No. 28947. Received November 19, 2010; approved February 12, 2011.
The new red-emitting phosphors of Eu3+-doped borotungstate Gd4B2WO12 were prepared by the high-temperature solid-state reaction. The phosphors were characterized by X-ray powder diffraction technique. The photoluminescence excitation and emission spectra, the fluorescence decay curves and the dependence of luminescence intensity on temperature were investigated. The phosphor can be efficiently excited by near UV light to realize an intense red luminescence (618 nm) corresponding to the electric dipole transition 5D07F2 of Eu3+ ions. The crystallographic site-occupations of the Eu3+ ions in Eu4B2WO12 were investigated by the site-selective excitation and emission spectra, and the fluorescence decay curves in the 5D07F0 region using a pulsed, tunable, and narrowband dye laser. The concentration quenching of the red luminescence together with the thermal stability were discussed on the base of the Eu3+ site-distributions in Eu4B2WO12 host.