Towards promoting plant growth and fruit maturation: a highly efficient and thermally stable Cr<sup>3+</sup> doped far-red phosphor

Yang, Chaowei; Zou, Xikun; Lyu, Mengqi; Wei, Mingkai; Wang, Ziyi; Shuang, Xiaoyu; Zhang, Xuejie; Dong, Bin; Li, Xinming; Cong, Yan; Zheng, Mingtao; Molokeev, Maxim S.; Lei, Bingfu

doi:10.1039/d4tc01953a

J. Mater. Chem. C

2024

DOI: 10.1039/d4tc01953a

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Towards promoting plant growth and fruit maturation: a highly efficient and thermally stable Cr³⁺ doped far-red phosphor

Chaowei Yang,

Xikun Zou,

Mengqi Lyu

et al.

Abstract: A new type of efficiency and low thermal quenched BGAGG: 0.07Cr3+ far-red phosphor was synthesized and used to prepare far-red pc-LED for plant lighting. Its positive effects were demonstrated in cultivation experiments of bok choy and Micro-Tom.

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Self deep red luminescence in NaLaCaWO6 double perovskite, properties regulation via Er3+ doping, and applications in favorable optical thermometry with ultra high relative sensitivity and plant lighting

Xue,

Gong,

Yang

et al. 2024

Advanced Powder Technology

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Self deep red luminescence in NaLaCaWO6 double perovskite, properties regulation via Er3+ doping, and applications in favorable optical thermometry with ultra high relative sensitivity and plant lighting

Xue,

Gong,

Yang

et al. 2024

Advanced Powder Technology

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Rare-earth-free Sr(Ca)2Ga2GeO7 phosphors with Ca-substitution-induced red-shift emission, perfectly aligned for Chlorophyll's absorption

Wang,

Kong,

et al. 2024

Optical Materials

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Compositional engineering of phase-stable and highly efficient deep-red emitting phosphor for advanced plant lighting systems

Qiao,

Li,

Shi

et al. 2024

Light Sci Appl

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Inorganic luminescent materials hold great promise for optoelectronic device applications, yet the limited efficiency and poor thermal stability of oxide-based deep-red emitting phosphors hinder the advancement of plant lighting technologies. Herein, a simple compositional engineering strategy is proposed to stabilize the phase, boost external quantum efficiency (EQE) and enhance thermal stability. The chemical modification of the PO4 tetrahedron in NaMgPO4:Eu by incorporating SiO4 lowers the formation energy, leading to the generation of pure olivine phase and increasing the EQE from 27% to 52%, setting a record for oxide deep-red phosphors. In parallel, the introduced deep defect level improves thermal stability at 150 °C from 62.5% to 85.4%. Besides, the excitation and emission peaks shifted to 440 nm and 675 nm, respectively, aligning precisely with the specific spectral absorption requirements of plant phytochromes. Moreover, the luminescent intensity showed nearly no decay after being exposed to 80% relative humidity and 80 oC for 6 h, and the pc-LED utilizing Na1.06MgP0.94Si0.06O4:Eu achieves a high output power of 780 mW at 300 mA. Our research demonstrates a facile method for optimizing the performance of inorganic luminescent materials and provides alternative solutions for low-cost plant lighting.

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Towards promoting plant growth and fruit maturation: a highly efficient and thermally stable Cr³⁺ doped far-red phosphor

Abstract: A new type of efficiency and low thermal quenched BGAGG: 0.07Cr3+ far-red phosphor was synthesized and used to prepare far-red pc-LED for plant lighting. Its positive effects were demonstrated in cultivation experiments of bok choy and Micro-Tom.

Cited by 3 publications

References 42 publications

Self deep red luminescence in NaLaCaWO6 double perovskite, properties regulation via Er3+ doping, and applications in favorable optical thermometry with ultra high relative sensitivity and plant lighting

Self deep red luminescence in NaLaCaWO6 double perovskite, properties regulation via Er3+ doping, and applications in favorable optical thermometry with ultra high relative sensitivity and plant lighting

Rare-earth-free Sr(Ca)2Ga2GeO7 phosphors with Ca-substitution-induced red-shift emission, perfectly aligned for Chlorophyll's absorption

Compositional engineering of phase-stable and highly efficient deep-red emitting phosphor for advanced plant lighting systems

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Towards promoting plant growth and fruit maturation: a highly efficient and thermally stable Cr3+ doped far-red phosphor

Abstract: A new type of efficiency and low thermal quenched BGAGG: 0.07Cr3+ far-red phosphor was synthesized and used to prepare far-red pc-LED for plant lighting. Its positive effects were demonstrated in cultivation experiments of bok choy and Micro-Tom.

Cited by 3 publications

References 42 publications

Self deep red luminescence in NaLaCaWO6 double perovskite, properties regulation via Er3+ doping, and applications in favorable optical thermometry with ultra high relative sensitivity and plant lighting

Self deep red luminescence in NaLaCaWO6 double perovskite, properties regulation via Er3+ doping, and applications in favorable optical thermometry with ultra high relative sensitivity and plant lighting

Rare-earth-free Sr(Ca)2Ga2GeO7 phosphors with Ca-substitution-induced red-shift emission, perfectly aligned for Chlorophyll's absorption

Compositional engineering of phase-stable and highly efficient deep-red emitting phosphor for advanced plant lighting systems

Contact Info

Product

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Towards promoting plant growth and fruit maturation: a highly efficient and thermally stable Cr³⁺ doped far-red phosphor