Gadolinium vacancy induced photoluminescence enhancement of Cr3+-doped Gd3-Ga5O12 near-infrared garnet phosphors for plant cultivation

Jiang, Chao; Chen, Xinhe; Li, Kaiyang; Li, Yue; Liu, Mengjie; Zhang, Chenyuan; Feng, Yubo; Liu, Zhenyu; Qian, Xu; Wei, Bo; Liu, Quan

doi:10.1016/j.ceramint.2023.08.321

Ceramics International

2023

DOI: 10.1016/j.ceramint.2023.08.321

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Gadolinium vacancy induced photoluminescence enhancement of Cr3+-doped Gd3-Ga5O12 near-infrared garnet phosphors for plant cultivation

Chao Jiang,

Xinhe Chen,

Kaiyang Li

et al.

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2024

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Cited by 15 publications

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Efficient Near‐Infrared Luminescence in Cr³⁺ Activated β‐Alumina Structure Phosphor via Multiple‐Sites Occupancy

Li,

Wang,

et al. 2024

Advanced Optical Materials

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Broadband near‐infrared (NIR) phosphors play vital roles in the research and development of compact NIR light sources. Herein, improved NIR luminescence properties have been achieved in β‐alumina structure Ba0.2La0.55Mg0.55Al2.45Ga8O17.25 (BLMAG):Cr3+ phosphor by cation co‐substitution strategy, which controls the local crystal environment for site‐selective occupancy of Cr3+ emitters. With the increase of La3+‐Mg2+ couples in host lattice, the NIR emission peak can be tuned from 712 to 746 nm under 405 nm excitation with a high internal (external) quantum efficiency of 97% (42.6%) and superior thermal stability of 90% @150 °C. The structural refinement and spectral analysis indicate that the broadband NIR emission drives from the Cr3+ occupying multiple luminescence centers in the lattice. Moreover, the as‐prepared phosphor‐converted light‐emitting diode (pc‐LED), using the optimized BLMAG:0.10Cr3+ phosphor, achieves an NIR output power of 72.9 mW at 150 mA with photoelectric conversion efficiency of 15.4%. The spectra well matched to the absorption of photosensitive pigment PFR appear promising in plant growth, the captured doll as well as the penetration experiments also illustrate the application in night vision and biosensing.

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Efficient Near‐Infrared Luminescence in Cr³⁺ Activated β‐Alumina Structure Phosphor via Multiple‐Sites Occupancy

Li,

Wang,

et al. 2024

Advanced Optical Materials

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Octahedron vacancy induced luminescence improvement of double perovskite type phosphors LaMg2/3-Nb1/3O3:Mn4+ with multifunctional applications

Zhang,

Liu,

Zhu

et al. 2024

Ceramics International

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Simultaneously strong NIR-II and NIR-III luminescence induced by Cr3+-Yb3+-Er3+ energy transfer in KScP2O7 for NIR thermometry, NIR pc-LED and night-vision applications

Gong,

Xue,

Zhu

et al. 2024

Ceramics International

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Gadolinium vacancy induced photoluminescence enhancement of Cr3+-doped Gd3-Ga5O12 near-infrared garnet phosphors for plant cultivation

Cited by 15 publications

References 39 publications

Efficient Near‐Infrared Luminescence in Cr³⁺ Activated β‐Alumina Structure Phosphor via Multiple‐Sites Occupancy

Efficient Near‐Infrared Luminescence in Cr³⁺ Activated β‐Alumina Structure Phosphor via Multiple‐Sites Occupancy

Octahedron vacancy induced luminescence improvement of double perovskite type phosphors LaMg2/3-Nb1/3O3:Mn4+ with multifunctional applications

Simultaneously strong NIR-II and NIR-III luminescence induced by Cr3+-Yb3+-Er3+ energy transfer in KScP2O7 for NIR thermometry, NIR pc-LED and night-vision applications

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Gadolinium vacancy induced photoluminescence enhancement of Cr3+-doped Gd3-Ga5O12 near-infrared garnet phosphors for plant cultivation

Cited by 15 publications

References 39 publications

Efficient Near‐Infrared Luminescence in Cr3+ Activated β‐Alumina Structure Phosphor via Multiple‐Sites Occupancy

Efficient Near‐Infrared Luminescence in Cr3+ Activated β‐Alumina Structure Phosphor via Multiple‐Sites Occupancy

Octahedron vacancy induced luminescence improvement of double perovskite type phosphors LaMg2/3-Nb1/3O3:Mn4+ with multifunctional applications

Simultaneously strong NIR-II and NIR-III luminescence induced by Cr3+-Yb3+-Er3+ energy transfer in KScP2O7 for NIR thermometry, NIR pc-LED and night-vision applications

Contact Info

Product

Resources

About

Efficient Near‐Infrared Luminescence in Cr³⁺ Activated β‐Alumina Structure Phosphor via Multiple‐Sites Occupancy

Efficient Near‐Infrared Luminescence in Cr³⁺ Activated β‐Alumina Structure Phosphor via Multiple‐Sites Occupancy