Journal
LASER & PHOTONICS REVIEWS
Volume 15, Issue 11, Pages -Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/lpor.202100392
Keywords
chemical substitution; green-emitting phosphor; narrow-band emission; site engineering
Categories
Funding
- National Natural Science Foundation of China [51972118, 51961145101]
- International Cooperation Project of National Key Research and Development Program of China [2021YFE0105700]
- Guangzhou Science & Technology Project [202007020005]
- State Key Laboratory of Luminescent Materials and Devices [Skllmd-2021-09]
- Local Innovative and Research Teams Project of Guangdong Pearl River Talents Program [2017BT01x137]
- RFBR [19-52-80003]
Ask authors/readers for more resources
This study developed a narrow-band green-emitting phosphor through engineering design, demonstrating its potential application for wide color gamut displays.
It remains a critical challenge to develop narrow-band emitters for wide color gamut displays. Herein, it is designed by the selective site occupancy engineering and an unprecedented narrow-band green-emitting phosphor is prepared through chemical substitution. By introducing Ga3+ ions into Sr2LiAlO4:Eu2+ phosphor, the distribution of Eu2+ ions in Sr1 and Sr2 sites is effectively controlled, and only one type of luminescent centers Eu-(Sr1)(2+) is remained in Sr2LiAl0.6Ga0.4O4:Eu2+ due to the compression effect of Sr2O(8) polyhedra. Sr2LiAl0.6Ga0.4O4:Eu2+ phosphor presents an extremely narrow-band green emission centered at 512 nm with a full-width at half-maximum of only 40 nm. The wide color gamut (107% National Television System Committee) of the as-fabricated white liquid crystal displays and the vivid figures captured from the projector demonstrate the potential application of narrow-band emitter for wide-color gamut displays. This work provides the design principles of realizing narrow-band emission by selective site occupancy engineering and can set the stage for the exploring of Eu2+-activated phosphor for high definition displays.
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