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- Title
Effect of AlN addition on the photoluminescence and phosphorescence properties of SrAl<sub>2</sub>O<sub>4</sub> :Eu<sup>2+</sup>,Dy<sup>3+</sup> phosphors.
- Authors
Lan Ma; Zhiguo Xia; Quanlin Liu
- Abstract
The effect of AlN addition on the phase structures and luminescence properties of SrAl2O4Eu2+; Dy3+ phosphor has been discussed. SrAl2+xO4Nx : 0.02Eu2+; 0.03Dy3+ (x = 0 to 0.3) phosphors have been synthesized by a solid-state reaction. X-ray powder diffraction shows that the phase structures of as-prepared SrAl2+xO4Nx : 0.02Eu2+ : 0.03Dy3+ remain invariable with the SrAl2O4 phase when the content of AlN is below 0.3. With the addition of AlN, photoluminescence intensities of SrAl2+xO4Nx : 0.02Eu2+; 0.03Dy3+ phosphors decrease with increasing x; however, the afterglow phosphorescence intensities obviously increased. The mechanism of the enhanced phosphorescence properties was also discussed.
- Subjects
ALUMINUM nitride; ALUMINUM compounds spectra; EUROPIUM spectra; SOLID-state lasers; X-ray diffraction; PHOSPHORESCENCE; PHOTOLUMINESCENCE
- Publication
Optical Engineering, 2015, Vol 54, Issue 6, p1
- ISSN
0091-3286
- Publication type
Article
- DOI
10.1117/1.OE.54.6.067105