LiGa5O8: Fe3+: A novel and super long near-infrared persistent material

Lu, Xiaona; Wang, Yafang; Yang, Jing; Townsend, PeterD.; Hreniak, Dariusz

doi:10.1016/j.ceramint.2024.06.345

Ceramics International

2024

DOI: 10.1016/j.ceramint.2024.06.345

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LiGa5O8: Fe3+: A novel and super long near-infrared persistent material

Xiaona Lu,

Yafang Wang,

Jing Yang

et al.

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Cited by 2 publications

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A review on defect engineered NIR persistent luminescence through transition metal ion (Cr, Mn, Fe and Ni) doping: Wider perspective covering synthesis, characterization, fundamentals and applications

Parayil,

Gupta,

Mohapatra

2025

Coordination Chemistry Reviews

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A review on defect engineered NIR persistent luminescence through transition metal ion (Cr, Mn, Fe and Ni) doping: Wider perspective covering synthesis, characterization, fundamentals and applications

Parayil,

Gupta,

Mohapatra

2025

Coordination Chemistry Reviews

View full text Add to dashboard Cite

Highly Efficient and Thermally Stable Ultra-Broadband NIR-II Emtting Li(Ga, Al)₅O₈:Cr³⁺, Ni²⁺ Phosphors for Spectroscopy Analysis

Wang,

Xu,

Shang

et al. 2024

J. Phys. Chem. Lett.

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Near-infrared (NIR) spectroscopy has diverse applications across various fields, such as the detection of food components and pesticide residues, early diagnosis, and treatment of cancer. In this work, a series of optimized LiAl 5−x Ga x O 8 :0.1Ni 2+ (x = 0−5) ultrabroadband NIR-II luminescent systems are developed. The density functional theory (DFT) calculations, time-resolved photoluminescence (TRPL) spectroscopy, and 77 K PL spectra demonstrate that the substitution of Ga 3+ for Al 3+ creates more favorable sites for Ni 2+ luminescence and enhances structural orderliness while reducing the number of luminescent centers. This leads to a red shift in the emission peak from 1177 to 1252 nm with a 14-fold increase in luminescence intensity. At 375 K, thermal stability increases from 81% (x = 0) to 90% (x = 5) compared to 300 K. Subsequent co-doping with Cr 3+ results in an excitation peak with a red shift into the blue-violet region (420 nm), accompanied by a notable enhancement in absorption efficiency (AE) and an increase in external quantum efficiency (EQE) from 4% to 62%. Finally, the potential application of the prepared phosphors in both qualitative and quantitative analysis of organic compounds is demonstrated, which will offer new insights for the design and synthesis of ultrabroadband NIR-II light sources.

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LiGa5O8: Fe3+: A novel and super long near-infrared persistent material

Cited by 2 publications

References 42 publications

A review on defect engineered NIR persistent luminescence through transition metal ion (Cr, Mn, Fe and Ni) doping: Wider perspective covering synthesis, characterization, fundamentals and applications

A review on defect engineered NIR persistent luminescence through transition metal ion (Cr, Mn, Fe and Ni) doping: Wider perspective covering synthesis, characterization, fundamentals and applications

Highly Efficient and Thermally Stable Ultra-Broadband NIR-II Emtting Li(Ga, Al)₅O₈:Cr³⁺, Ni²⁺ Phosphors for Spectroscopy Analysis

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Product

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About

LiGa5O8: Fe3+: A novel and super long near-infrared persistent material

Cited by 2 publications

References 42 publications

A review on defect engineered NIR persistent luminescence through transition metal ion (Cr, Mn, Fe and Ni) doping: Wider perspective covering synthesis, characterization, fundamentals and applications

A review on defect engineered NIR persistent luminescence through transition metal ion (Cr, Mn, Fe and Ni) doping: Wider perspective covering synthesis, characterization, fundamentals and applications

Highly Efficient and Thermally Stable Ultra-Broadband NIR-II Emtting Li(Ga, Al)5O8:Cr3+, Ni2+ Phosphors for Spectroscopy Analysis

Contact Info

Product

Resources

About

Highly Efficient and Thermally Stable Ultra-Broadband NIR-II Emtting Li(Ga, Al)₅O₈:Cr³⁺, Ni²⁺ Phosphors for Spectroscopy Analysis