文献类型：期刊文献

英文题名：Na₅Y(MoO₄)₄: Sm³⁺ red phosphor with good thermal stability and high color rendering index for plant growth lighting and white light emitting diodes

作者：Wei, Chao Zhang, Jie Sun, Zan Ran, Jingyu Li, Shuo Zhu, Shuai Jiang, Chen Wen, Youjiang Ran, Xiangqian

第一作者：Wei, Chao

通信作者：Ran, JY[1];Ran, JY[2]

机构：[1]Guizhou Inst Technol, Guizhou Phosphogypsum Inst, Guiyang 550003, Peoples R China;[2]Guizhou Prov Higher Educ Inst, Key Lab Chem Admixture Sci & Technol, Guiyang 550003, Peoples R China;[3]Baoding Univ, Dept Phys & Elect Engn, Baoding 071002, Peoples R China

第一机构：贵州理工学院

通信机构：corresponding author), Guizhou Inst Technol, Guizhou Phosphogypsum Inst, Guiyang 550003, Peoples R China;corresponding author), Guizhou Prov Higher Educ Inst, Key Lab Chem Admixture Sci & Technol, Guiyang 550003, Peoples R China.|贵州理工学院;

年份：2024

卷号：991

外文期刊名：JOURNAL OF ALLOYS AND COMPOUNDS

收录：;WOS:【SCI-EXPANDED(收录号:WOS:001292905100001)】；

基金：This work was supported by the Project for the Growth of Young Scientific and Technological Talents in General Higher Education In-stitutions in Guizhou Province (Qian jiao he KY zi [2022] No. 348) , the National Natural Science Foundation of China (No. 52268001) , the Guiyang Scientific and Technological Achievements Transformation Plan Project (No. [2022] 5-8) , the Natural science Research Project of the Education Department of Guizhou Province (No. QJJ [2022] 001) , the Science and Technology Support Plan Project of Guizhou Province (Grant [2020] 4Y041) , the Natural science Research Project of the Ed-ucation Department of Guizhou Province (No. QJJ [2023] 022, No. QJJ [2023] 077) .

语种：英文

外文关键词：Phosphor; Na5Y(MoO4)(4): Sm3+; Plant growth; Na5Y(MoO4)(4): Sm3+; White LEDs; Plant growth

摘要：To enhance the luminous efficiency of white LEDs and further advance the application of artificial light in controlling plant growth, it is imperative to develop a red phosphor with high luminescence intensity and excellent thermal stability. Our research team has successfully synthesized a Sm3+-activated, high-temperatureresistant Na5Y(MoO4)4 red phosphor through the solid-phase method. Utilizing X-ray diffraction and X-ray photoelectron spectroscopy, we confirmed the successful doping of Sm3+ ions into the Na5Y(MoO4)4 matrix. The synthesized phosphors demonstrate a robust red emission at 645 nm, characterized by an optimal doping concentration of 0.06 and a quantum efficiency of 38.14%. Remarkably, the emission peak intensity and integral area of the sample at 423 K retain 83.24% of their value at room temperature, showcasing exceptional thermal stability. The potential of the prepared phosphors in solid-state lighting and in promoting plant growth was confirmed by encapsulating them within LED devices. The emission spectrum of the encapsulated red LED closely aligns with the absorption spectra of plant chlorophyll a/b and the photosensitive pigment P-R, indicating its suitability for enhancing photosynthesis. Additionally, the encapsulated white LED emits a brilliant white light, achieving a high color rendering index with values of R-a (91.7) and R-9 (40), significantly outperforming the commercial phosphor standards of 80 (R-a) and 15 (R-9). The test results demonstrate the synthesized red phosphor has a promising application in white LED illumination and plant growth enhancement.