Improvement of luminescence properties in Zn<sub>2.1</sub>Mg<sub>0.9</sub>Ta<sub>2</sub>O<sub>8</sub>:Cr<sup>3+</sup> by the cation substitution and its application in biological nondestructive testing and night vision lighting
Recently, it is of great significance to explore near-infrared (NIR) phosphor with more application prospects. In this work, a series of Zn<sub>2.1 </sub>Mg<sub>(0.9 - y)</sub>Ga<sub>y</sub>Sn<sub>y</sub>Ta<sub>(2 - y)</sub>O<sub>8</sub>:0.003Cr<sup>3+</sup> NIR broadband phosphors with high quantum yields and high thermal stability are discovered by uniquely replacing [Mg<sup>2+</sup>-Ta<sup>5+</sup>] in Zn<sub>2.1</sub>Mg<sub>0.9</sub>Ta<sub>2</sub>O<sub>8</sub> with [Ga<sup>3+</sup>-Sn<sup>4+</sup>]. Under 460 nm excitation, Zn<sub>2.1</sub>Mg<sub>0.85</sub>Ga<sub>0.05</sub>Sn<sub>0.05</sub>Ta<sub>1.95</sub>O<sub>8</sub>: 0.003Cr<sup>3+</sup> depicts the 600-1100 nm broadband emission with a full-width at half maximum (FWHM) of 210 nm, and the quantum yields can reach 61.2%. Finally, the phosphor was mixed with epoxy resin and encapsulated in a 460 nm blue light emitting diode (LED) chip to convert the NIR LED by phosphor (NIR pc-LED), which was applied in the field of biological nondestructive testing and night vision lighting.
Authors
- Hao Suo (ORCID: https://orcid.org/0000-0002-6106-9402)
- Mingxin Zhou (ORCID: https://orcid.org/0000-0002-1748-7180)
- Panlai Li (ORCID: https://orcid.org/0000-0003-0972-9343)
- Zhijun Wang (ORCID: https://orcid.org/0000-0002-3574-3985)
- Xue Meng (ORCID: https://orcid.org/0009-0004-7405-9192)
- Yu Wang (ORCID: https://orcid.org/0000-0002-9703-8827)
- Xiaoxue Huo
Publication Details
- Journal
- Optics Letters
- Published
- 2024-08-15
- DOI
- https://doi.org/10.1364/ol.532000
- Citations
- 1
- Primary Topic
- Luminescence Properties of Advanced Materials
- Type
- article
- Field-Weighted Citation Impact
- 0.12
Funders
- National Natural Science Foundation of China
- Natural Science Foundation of Hebei Province