Thermally boosted upconversion and downshifting luminescence in Sc2(MoO4)3:Yb/Er with two-dimensional negative thermal expansion
Jiangxi University of Technology · Jiangxi University of Science and Technology · +4 more institutions
Abstract
Abstract Rare earth (RE 3+ )-doped phosphors generally suffer from thermal quenching, in which their photoluminescence (PL) intensities decrease at high temperatures. Herein, we report a class of unique two-dimensional negative-thermal-expansion phosphor of Sc 2 (MoO 4 ) 3 :Yb/Er. By virtue of the reduced distances between sensitizers and emitters as well as confined energy migration with increasing the temperature, a 45-fold enhancement of green upconversion (UC) luminescence and a 450-fold enhancement of near-infrared downshifting (DS) luminescence of Er 3+ are achieved upon raising the temperature from 298 to 773 K. The thermally boosted UC and DS luminescence mechanism is systematically investigated…
Citation impact
- FWCI
- 18.99
- Percentile
- 100%
- References
- 58
Authors
9- JLJinsheng LiaoCorresponding
Jiangxi University of Technology, Jiangxi University of Science and Technology
- MWMinghua Wang
Jiangxi University of Science and Technology
- FLFulin Lin
Chinese Academy of Sciences, Xiamen Institute of Rare-earth Materials, Fujian Institute of Research on the Structure of Matter
- ZHZhuo Han
Jiangxi University of Science and Technology
- BFBiao Fu
Jiangxi University of Science and Technology
Topics & keywords
- Luminescence
- Phosphor
- Raman spectroscopy
- Materials science
- Photoluminescence
- Photon upconversion
- Thermal expansion
- Doping
- Affordable and clean energy