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- Title
Preparation and luminescence properties of SrZr(PO):Dy single-phase full-color phosphor.
- Authors
Zhang, Zhi-wei; Liu, Lu; Wang, Yue-hui; Song, Shi-tao; Wang, Dong-jun
- Abstract
Novel single-phase white-light-emitting SrZr(PO):Dy phosphors for light-emitting diode (LED) applications were synthesized by conventional solid-state reactions. The phases and luminescent properties of the obtained SrZr(PO):Dy phosphors were characterized. The results show that the luminescence spectra excited by 350 nm consist of two characteristic blue and yellow bands, corresponding to the F → H and F → H transitions of Dy, respectively. When x > 0.02, the concentration quenching effect occurred, and the critical transfer distance (R) was ~19.247 Å. The energy transfer of the Dy ions is the electric dipole-dipole interaction mechanism. The International Commission on Illumination chromaticity coordinates for SrZr(PO): xDy phosphors were located in the white region. The developed phosphor has great potential as a single-component white-light-emitting phosphor for UV-LEDs.
- Subjects
STRONTIUM compounds; DYSPROSIUM; PHOSPHORS; CHEMICAL synthesis; ZIRCONIUM compounds synthesis; SPECTRUM analysis; LIGHT emitting diodes; DIPOLE-dipole interactions
- Publication
Journal of Materials Science: Materials in Electronics, 2015, Vol 26, Issue 6, p4202
- ISSN
0957-4522
- Publication type
Article
- DOI
10.1007/s10854-015-2967-6