Journal
JOURNAL OF LUMINESCENCE
Volume 251, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.jlumin.2022.119188
Keywords
Li3Sc1.92(PO4)(3):0.08Cr(3+); Near-infrared phosphor; Ultra-broad band
Categories
Funding
- National Natural Science Foundation of China [62127816]
- Science and Technology Program of Guangzhou, China [202002030091, 202102080261]
- National Key R & D Program of China [2018YFB1801001]
- Guangdong Introducing Innovative and Enterpreneurial Teams of The Pearl River Talent Recruitment Program [2019ZT08X340]
- Research and Development Plan in Key Areas of Guangdong Province [2018B010114002]
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An ultra-broad band NIR emitting phosphor Li3Sc1.92(PO4)(3):0.08Cr(3+) with a good FWHM performance has been reported. It has great potential in areas such as night vision and NIR spectroscopy.
The near-infrared phosphor converted light-emitting diodes (NIR pc-LEDs) have been broadly used in the fields of night vision, biomedicine, nondestructive testing and food analysis. Over the past few years, many Cr3+ doped NIR phosphorus has been reported. However, the realization of ultra-broad band NIR emission with high quantum efficiency remains a great challenge. Here, we report an ultra-broad band NIR emitting phosphor Li3Sc1.92(PO4)(3):0.08Cr(3+) with a full width at half maximum (FWHM) of 240 nm. The reason for the ultra-broad emission band is that the host Li3Sc2(PO4)(3) provides two different kinds of ScO6 octahedral sites for Cr3+ ions to occupy. This FWHM is better than most NIR emitting phosphors reported so far. Our research indicates that Li3Sc2(PO4)(3):Cr3+ phosphors have great potential in night vision and NIR spectroscopy.
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