Тип публикации: статья из журнала

Год издания: 2024

Идентификатор DOI: 10.1002/adom.202401608

Аннотация: <jats:title>Abstract</jats:title><jats:p>Far-red phosphor-converted light-emitting diodes are receiving increasing attention as an essential component of the next-generation plant-growth lights. However, developing far-red phosphors with high quantum efficiency, low thermal quenching, and suitable emitting wavelength is crucial andПоказать полностьюurgent. Herein, a new far-red phosphor BaY<jats:sub>2</jats:sub>Ga<jats:sub>3.9</jats:sub>GeO<jats:sub>12</jats:sub>:0.1Cr<jats:sup>3+</jats:sup> with high internal quantum efficiency (98%) and thermal stability (90.2%@423K) is obtained via the substitution of CaO<jats:sub>8</jats:sub> with bigger BaO<jats:sub>8</jats:sub> dodecahedrons, which is attributed to variations in the lattice environment of Cr<jats:sup>3+</jats:sup>. Meanwhile, controllable emission tuning from 780 to 708 nm and enhanced luminescence performance are achieved due to the cation substitution can reduce the production of Cr<jats:sup>4+</jats:sup> and modulate the lattice occupancy of the Cr<jats:sup>3+</jats:sup> ions, and the enhancement of metal-ligand interactions resulting in the enhancement of the crystal field and the breaking of the forbidden d-d transition of Cr<jats:sup>3+</jats:sup>. The proof-of-concept demonstration of the pakchoi lighting experiment reveals the great potential of BaY<jats:sub>2</jats:sub>Ga<jats:sub>3.9</jats:sub>GeO<jats:sub>12</jats:sub>:Cr<jats:sup>3+</jats:sup> phosphor in stimulating plant growth and pushing the yield. These results demonstrate the feasibility of cationic substitution to optimize the optical performance of Cr<jats:sup>3+</jats:sup>-doped phosphors, providing an alternative strategy for designing efficient far-red light sources for plant lighting.</jats:p>

Журнал: Advanced Optical Materials

ISSN журнала: 21951071

• Dai Xiangyi (Key Laboratory for Biobased Materials and Energy of Ministry of Education College of Materials and Energy South China Agricultural University Guangzhou 510642 P. R. China)
• Zou Xikun (Key Laboratory for Biobased Materials and Energy of Ministry of Education College of Materials and Energy South China Agricultural University Guangzhou 510642 P. R. China)
• Wei Mingkai (Key Laboratory for Biobased Materials and Energy of Ministry of Education College of Materials and Energy South China Agricultural University Guangzhou 510642 P. R. China)
• Zhang Xuejie (Key Laboratory for Biobased Materials and Energy of Ministry of Education College of Materials and Energy South China Agricultural University Guangzhou 510642 P. R. China)
• Dong Bin (College of Physics and Materials Engineering Dalian Minzu University Dalian 11660 P. R. China)
• Li Xinming (College of Physics and Materials Engineering Dalian Minzu University Dalian 11660 P. R. China)
• Cong Yan (College of Physics and Materials Engineering Dalian Minzu University Dalian 11660 P. R. China)
• Li Dongyu (School of Physics Science and Technology Lingnan Normal University Zhanjiang 524048 P. R. China)
• Zhao Jie (School of Physics Science and Technology Lingnan Normal University Zhanjiang 524048 P. R. China)
• Molokeev Maxim S. (Department of Physics and Technical Sciences Western Caspian University Baku AZ 1001 Azerbaijan)
• Lei Bingfu (College of Physics and Materials Engineering Dalian Minzu University Dalian 11660 P. R. China)

• Ядро РИНЦ (eLIBRARY.RU)