Optimization of Synthesis Process and Optical Properties of Ba2YTaOx: Cr3+ Broadband Near-infrared Fluorescent Powder

Dongyan Bao

doi:10.47297/taposatWSP2633-456907.20250611

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Optimization of Synthesis Process and Optical Properties of Ba<sub>2</sub>YTaO<sub>x</sub>: Cr<sup>3+</sup> Broadband Near-infrared Fluorescent Powder

6卷第11期

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Optimization of Synthesis Process and Optical Properties of Ba₂YTaO_x: Cr³⁺ Broadband Near-infrared Fluorescent Powder
Optimization of Synthesis Process and Optical Properties of Ba₂YTaO_x: Cr³⁺ Broadband Near-infrared Fluorescent Powder
Shandong Vocational College of Science and Technology, Weifang, Shandong, 261053, China
2025年6卷第11期页码：34-36
纸质出版：2025-11-30
DOI：10.47297/taposatWSP2633-456907.20250611
Accepted：

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Dongyan Bao. (2025). Optimization of Synthesis Process and Optical Properties of Ba₂YTaO_x: Cr³⁺ Broadband Near-infrared Fluorescent Powder. 科技理论与实践（英文版）, 6(11), 34-36.

Bao Dongyan.Optimization of Synthesis Process and Optical Properties of Ba₂YTaO_x: Cr³⁺ Broadband Near-infrared Fluorescent Powder[J].Theory and Practice of Science and Technology,2025,06(11):34-36.
Dongyan Bao. (2025). Optimization of Synthesis Process and Optical Properties of Ba₂YTaO_x: Cr³⁺ Broadband Near-infrared Fluorescent Powder. 科技理论与实践（英文版）, 6(11), 34-36. DOI： 10.47297/taposatWSP2633-456907.20250611.

Bao Dongyan.Optimization of Synthesis Process and Optical Properties of Ba₂YTaO_x: Cr³⁺ Broadband Near-infrared Fluorescent Powder[J].Theory and Practice of Science and Technology,2025,06(11):34-36. DOI： 10.47297/taposatWSP2633-456907.20250611.

摘要

Abstract

This article successfully synthesized Cr

-doped Ba

YTaO

near-infrared fluorescent powder using high-temperature solid-phase method

and systematically studied its crystal structure

microstructure

and luminescent properties. X-ray diffraction analysis shows that the synthesized sample has a pure phase double perovskite structure

with Cr

effectively entering the Y3+ lattice site. Under blue light excitation

the fluorescent powder exhibits broadband near-infrared emission centered at 850 nm

with a full width at half maximum of 195.5 nm

suitable for biological imaging and spectral analysis. As the Cr

doping concentration increases

the luminescence intensity first increases and then decreases due to concentration quenching. The optimal doping concentration is 0.01%. The thermal stability test shows that the material can still maintain 75% of its initial luminescence intensity at 150 ℃

demonstrating good potential for application. Finally

by encapsulating blue LED chips

the construction of near-infrared pc LED devices has been achieved

which is expected to have application prospects in vascular imaging in the future.

关键词

Keywords

references

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