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 Zhu, Shuai Ran, Xiangqian Li, Shuo Jiang, Chen Wen, Youjiang Guo, Lei Sun, Jiayue

第一作者：Wei, Chao

机构：[1] Guizhou Phosphogypsum Institute, Guizhou Institute of Technology, Guiyang, 550003, China; [2] The Key Laboratory of Chemical Admixture Science and Technology of Guizhou Province Higher Education Institutions, Guiyang, 550003, China; [3] Department of Physics and Electronic Engineering, Baoding University, Baoding, 071002, China; [4] Guizhou Jingjie Shite Technology Development Co., Ltd, Guiyang, 550001, China; [5] School of Science, Beijing Technology and Business University, Beijing, 100048, China

第一机构：贵州理工学院

通信机构：Guizhou Phosphogypsum Institute, Guizhou Institute of Technology, Guiyang, 550003, 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：EI(收录号：20234515009930);Scopus(收录号：2-s2.0-85175420576)

语种：英文

外文关键词：Citrus fruits - Contact angle - Density functional theory - Energy gap - Hydrophobicity - Infrared devices - Luminescence - Optical properties - Phosphors - Silicates - Silicon - Synthesis (chemical) - Thermodynamic stability

摘要：In this paper, a new type of Ba2La8(SiO4)6O2: 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)6O2: xSm3+ phosphors have a strong orange-red emission at 600 nm, which corresponds to the 6G5/2→6H7/2 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)6O2 host can provide an excellent band-gap environment for the luminescent center. In addition, the modified Ba2La8(SiO4)6O2: 0.10Sm3+ phosphor showed excellent hydrophobicity and luminescent properties, with a contact angle of 140.315°, and the luminescent intensity remained 75% of the pre-modified level. The Ba2La8(SiO4)6O2: Sm3+ phosphor has good dispersion in PVA solution and emits bright red light. The above properties indicate that Ba2La8(SiO4)6O2: Sm3+ phosphor has excellent luminescence properties and has broad application prospects. ? 2023 Elsevier B.V.