文献类型：期刊文献

英文题名：A novel orange-red emission of Ba₂La₈(SiO₄)₆O₂: Sm³⁺ phosphor with good thermal stability and hydrophobicity

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

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]Key Lab Chem Admixture Sci & Technol Guizhou Prov, Guiyang 550003, Peoples R China;[3]Baoding Univ, Dept Phys & Elect Engn, Baoding 071002, Peoples R China;[4]Beijing Technol & Business Univ, Sch Sci, Beijing 100048, 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), Key Lab Chem Admixture Sci & Technol Guizhou Prov, Guiyang 550003, Peoples R China.|贵州理工学院;

年份：2024

卷号：971

外文期刊名：JOURNAL OF ALLOYS AND COMPOUNDS

收录：;WOS:【SCI-EXPANDED(收录号:WOS:001111931500001)】；

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).

语种：英文

外文关键词：Phosphor; Luminescence; W-LEDs; Ba2La8(SiO4)(6)O-2: Sm3+

摘要：In this paper, a new type of Ba2La8(SiO4)(6)O-2: Sm3+ phosphor was synthesized by solid-phase reaction, and the hydrophobic agent was used to restrain the hydrolysis of silicate phosphor. The microstructure, optical properties and electroluminescence properties of the samples were systematically analyzed. The results show that the Ba2La8(SiO4)(6)O-2: xSm(3+) phosphors have a strong orange-red emission at 600 nm, which corresponds to the (6)G(5/2)-> H-6(7/2) energy level transition of Sm3+ ions. The optimal luminescence intensity was achieved at the dopant concentration of 10 mol%. The prepared phosphor has good thermal stability, the luminescence intensity at 423 K is still 85% of that at 298 K, and the internal quantum efficiency (IQE) is 22.59%. The ultraviolet-visible-near-infrared (UV-VIS-NIR) spectrum and the density functional theory reveal that the Ba2La8(SiO4)(6)O-2 host can provide an excellent band-gap environment for the luminescent center. In addition, the modified Ba2La8(SiO4)(6)O-2: 0.10Sm(3+) phosphor showed excellent hydrophobicity and luminescent properties, with a contact angle of 140.315 degrees, and the luminescent intensity remained 75% of the pre-modified level. The Ba2La8(SiO4)(6)O-2: Sm3+ phosphor has good dispersion in PVA solution and emits bright red light. The above properties indicate that Ba2La8(SiO4)(6)O-2: Sm3+ phosphor has excellent luminescence properties and has broad application prospects.