Journal
JOURNAL OF LUMINESCENCE
Volume 132, Issue 7, Pages 1701-1704Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jlumin.2012.02.006
Keywords
Double perovskite structure; Red phosphor; Chromaticity coordinate
Categories
Funding
- 973 Program of China [2009CB939903]
- NSF of China [20901083, 50902143, 61076062, 50821004]
- STC of Shanghai [0952nm06500, 10520706700, 10JC1415800]
Ask authors/readers for more resources
A novel red phosphor La2MgTiO6:xEu(3+) was successfully synthesized by the conventional solid state method. Excited by ultraviolet (395 nm) and blue (465 nm) light, La2MgTiO6:xEu(3+) exhibits intense red emission. Due to the lack of inversion symmetry at the doping sites, the dominant emission peak is from the transition D-5(0) -> F-7(2). Non-radiative transitions were demonstrated to be from dipole-dipole interactions and the critical distance was estimated to be similar to 9.19 angstrom. When Eu3+ ions' concentration reaches 15%, the emission intensity is about three times higher than that of the conventional phosphor Y2O3:Eu3+. The Commission International de L'Eclairage chromaticity coordinate was calculated to be x=0.657 and y=0.343. All the results indicate that La2MgTiO6:xEu(3+) has superior luminescence properties. (C) 2012 Elsevier B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available