文献类型：期刊文献

英文题名：Samarium doping effects on molybdate phosphor with high color rendering index and its application

作者：Wei, Chao Zhang, Jie Ran, Jingyu Zhang, Zuotai Ran, Mengcheng Lin, Shikai Yang, Cheng Su, Xiangdong

第一作者：Wei, Chao

通信作者：Ran, JY[1];Su, XD[1]

机构：[1]Guizhou Inst Technol, Guizhou Phosphogypsum Inst, Guiyang 550003, Peoples R China;[2]Guizhou Univ, Collaborat Innovat Ctr Guizhou Prov Efficient Util, Guiyang 550025, Peoples R China;[3]Guizhou Prov Higher Educ Inst, Key Lab Chem Admixture Sci & Technol, Guiyang 550003, Peoples R China;[4]Southern Univ Sci & Technol, Key Lab Municipal Solid Waste Recycling Technol &, Shenzhen 518055, 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.|贵州理工学院;

年份：2025

卷号：51

期号：8

起止页码：10115-10123

外文期刊名：CERAMICS INTERNATIONAL

收录：;EI(收录号：20250117622659);Scopus(收录号：2-s2.0-85213521058);WOS:【SCI-EXPANDED(收录号:WOS:001445988200001)】；

基金：This work was supported by Guizhou Provincial Science and Technology Projects [Qiankehe Basic- [2024] Youth 362] , the National Natural Science Foundation of China (No. 52268001) , the Natural science Research project of the Education Department of Guizhou Province (No. QJJ [2022] 001) , the Natural science Research project of the Education Department of Guizhou Province (No.QJJ [2023] 022, No.QJJ [2023] 077) .

语种：英文

外文关键词：K5La(MoO4)(4): Sm3+; Phosphor; LED; Plant growth

摘要：In this research, we synthesized Sm3+-activated molybdate K5La(MoO4)(4) (KLM) red phosphors through a solid-phase reaction method. The samples were systematically characterized in terms of crystal structure, phase composition, morphology, optical properties, and various applications. Upon 403 nm excitation, the photoluminescence spectrum of the phosphor exhibited four prominent emission peaks due to the 4f-4f transitions of Sm3+ ions. Notably, at 423 K, the emission intensity of the KLM:0.04Sm(3+) phosphor was 82.6 % of that at 298 K. LED devices fabricated with a commercial 395 nm LED chip and KLM:0.04Sm(3+) phosphor showed significant spectral overlap with the absorption spectra of chlorophyll a and the photosensitive pigment P-R, meeting the photonic requirements for plant growth and development. The white light-emitting diodes (w-LEDs) demonstrated a high color rendering index (Ra) of 95.14 and a suitable correlated color temperature (CCT) of 5245 K. The optical temperature dependence of the KLM:4%Sm3+ phosphor was analyzed using the luminescence intensity ratio technique, showing excellent relative sensitivity for temperature measurement (S-R = 0.258 % K-1). These results indicate the potential applications of the synthesized phosphors in w-LEDs, plant growth lighting, and optical temperature sensors, all of which have significant practical value.