文献类型：期刊文献

英文题名：Orange red Ca₉Sc(PO₄)₇: Sm³⁺ phosphor with excellent thermal stability for solid state lighting

作者：Wei, Chao Sun, Zan Ran, Jingyu Zhang, Jie

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, Coll Automobile & Elect Engn, Baoding 071000, 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：130

期号：2

外文期刊名：APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING

收录：;WOS:【SCI-EXPANDED(收录号:WOS:001152880200003)】；

基金：This work was supported by the Project for the Growth of Young Scientific and Technological Talents in General Higher Education Institutions 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 Natural science Research project of the Education Department of Guizhou Province (No.QJJ[2023]022, No.QJJ[2023]077), the Science and Technology Support Plan Project of Guizhou Province (Grant [2020]4Y041).

语种：英文

外文关键词：Ca9Sc(PO4)(7):Sm3+; Phosphor; Luminescence; WLEDs

摘要：In this study, a series of Ca9Sc(PO4)7: Sm3+ (CSP: Sm3+) orange-red phosphors were synthesized by the conventional solid-phase method, and their crystal structure, luminescent properties, decay lifetimes and thermal stability were investigated. The computational result shows that the CSP substrate has a wide band gap value (4.258 eV). At 403 nm excitation, the emission spectrum of CSP: Sm3+ phosphors has an intense orange red emission at 602 nm. The optimum concentration of Sm3+ ion doped phosphor is 0.12, and the phosphor has a high color purity (97%). Moreover, the prepared phosphors have excellent thermal stability, and the emission intensity can still reach 91.68% of that at room temperature at 423 K. The above results indicate that the prepared CSP: Sm3+ phosphors have excellent luminescent properties and have potential applications in solid-state lighting.