Journal
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
Volume 60, Issue 26, Pages 14644-14649Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.202103612
Keywords
chemical unit cosubstitution; near-infrared emitting phosphor; night-vision; NIR spectroscopy; photoluminescence tuning
Categories
Funding
- Chinese Government [2017YFE0132300]
- Australian Government [2017YFE0132300]
- National Natural Science Foundation of China (NSFC) [51932009, 51720105015, 51929201, 52072349]
Ask authors/readers for more resources
Near-infrared (NIR) emitting phosphor materials have been widely used in optoelectronic and biomedical applications. This study introduces a new ultra-broadband NIR-emitting LiIn2SbO6:Cr3+ phosphor with tunable emission peak achieved through chemical unit cosubstitution, showing potential in night-vision and NIR spectroscopy techniques.
Near-infrared (NIR)-emitting phosphor materials have been extensively developed for optoelectronic and biomedical applications. Although Cr3+-activated phosphors have been widely reported, it is challenging to achieve ultra-broad and tunable NIR emission. Here, a new ultra-broadband NIR-emitting LiIn2SbO6:Cr3+ phosphor with emission peak at 965 nm and a full-width at half maximum of 217 nm is reported. Controllable emission tuning from 965 to 892 nm is achieved by chemical unit cosubstitution of [Zn2+-Zn2+] for [Li+-In3+], which can be ascribed to the upshift of T-4(2g) energy level due to the strengthened crystal field. Moreover, the emission is greatly enhanced, and the FWHM reaches 235 nm. The as-prepared luminescent tunable NIR-emitting phosphors have demonstrated the potential in night-vision and NIR spectroscopy techniques. This work proves the feasibility of chemical unit cosubstitution strategy in emission tuning of Cr3+-doped phosphors, which can stimulate further studies on the emission-tunable NIR-emitting phosphor materials.
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