Achieving High Quantum Efficiency Broadband NIR Mg 4 Ta 2 O 9 :Cr 3+ Phosphor Through Lithium‐Ion Compensation
Nanchang University · Chinese Academy of Sciences · +3 more institutions
Abstract
Abstract Ultra‐efficient broadband near‐infrared (NIR) phosphor‐converted light‐emitting diodes (pc‐LEDs) are urgently needed to improve the detection sensitivity and spatial resolution of current smart NIR spectroscopy‐based techniques. Nonetheless, the performance of NIR pc‐LED has severely limited owing to the external quantum efficiency (EQE) bottleneck of NIR light‐emitting materials. Herein, a blue LED excitable Cr 3+ ‐doped tetramagnesium ditantalate (Mg 4 Ta 2 O 9 , MT) phosphor is advantageously modified through lithium ion as a key efficient broadband NIR emitter to achieve high optical output power of the NIR light source. The emission spectrum encompasses the 700–1300 nm electromagnetic spectrum of…
Citation impact
- FWCI
- 15.85
- Percentile
- 100%
- References
- 45
Authors
10- SWShangwei Wang
Nanchang University, Chinese Academy of Sciences, Changchun Institute of Applied Chemistry, Jiangxi Academy of Environmental Sciences, Jiangxi Academy of Sciences
- RPRan PangCorresponding
Chinese Academy of Sciences, Changchun Institute of Applied Chemistry
- TTTao Tan
Chinese Academy of Sciences, Changchun Institute of Applied Chemistry, Jiangxi Academy of Environmental Sciences
- HWHaiyan Wu
Chinese Academy of Sciences, Changchun Institute of Applied Chemistry
- QWQi Wang
Chinese Academy of Sciences, Changchun Institute of Applied Chemistry, Jiangxi Academy of Environmental Sciences, Jiangxi Academy of Sciences
Topics & keywords
- Phosphor
- Materials science
- Optoelectronics
- Full width at half maximum
- Near-infrared spectroscopy
- Quantum efficiency
- Light-emitting diode
- Lithium (medication)
- Affordable and clean energy