Emerging ultra-narrow-band cyan-emitting phosphor for white LEDs with enhanced color rendition
Beijing University of Technology · University of Science and Technology Beijing · +5 more institutions
Abstract
Abstract Phosphor-converted white LEDs rely on combining a blue-emitting InGaN chip with yellow and red-emitting luminescent materials. The discovery of cyan-emitting (470–500 nm) phosphors is a challenge to compensate for the spectral gap and produce full-spectrum white light. Na 0.5 K 0.5 Li 3 SiO 4 :Eu 2+ (NKLSO:Eu 2+ ) phosphor was developed with impressive properties, providing cyan emission at 486 nm with a narrow full width at half maximum (FWHM) of only 20.7 nm, and good thermal stability with an integrated emission loss of only 7% at 150 °C. The ultra-narrow-band cyan emission results from the high-symmetry cation sites, leading to almost ideal cubic coordination for UCr 4 C 4 -type compounds.…
Citation impact
- FWCI
- 27.44
- Percentile
- 100%
- References
- 36
Authors
7- MZMing ZhaoCorresponding
Beijing University of Technology, University of Science and Technology Beijing
- HLHongxu Liao
Beijing University of Technology, University of Science and Technology Beijing
- МSМaxim S. Моlokeev
Institute of Physics, Far Eastern State Transport University, Siberian Federal University
- YZYayun Zhou
State Key Laboratory of Luminescent Materials and Devices, South China University of Technology
- QZQinyuan Zhang
State Key Laboratory of Luminescent Materials and Devices, South China University of Technology
Topics & keywords
- Cyan
- Phosphor
- Light-emitting diode
- Optoelectronics
- White light
- Materials science
- Optics
- Physics