人工晶体学报2025，Vol.54Issue(4)：663-673,11.DOI:10.16553/j.cnki.issn1000-985x.2024.0250
CaMoO4∶Dy3+/Sm3+白光荧光粉的设计、合成及发光性能研究
Design,Synthesis and Luminescent Properties of CaMoO4∶Dy3+/Sm3+White Phosphors
摘要
Abstract
In this paper,CaMoO4∶xDy3+(x=0.01～0.05)and CaMoO4∶0.03Dy3+/ySm3+(y=0.01～0.05)series phosphors and CaMoO4 matrix were synthesized by hydrothermal method using hexadecyl trimethyl ammonium bromide as complexing agent.The effects of Dy3+doping and Dy3+/Sm3+co-doping on the structure,morphology and luminescent properties of the samples were investigated.The results show that Dy3+doping and Dy3+/Sm3+co-doping do not change the tetragonal phase of CaMoO4,but the lattice parameters decrease.The micromorphologies of all samples are ellipsoidal.Under the excitation of 353 nm,the strongest emission peak of CaMoO4∶xDy3+phosphor is located at 575 nm,which is due to the 4F9/2→6H13/2 dipole transition of Dy3+,and the optimal doping molar concentration is x=0.03.Under the excitation of 298 nm,the quenching molar concentration of Sm3+in CaMoO4∶0.03Dy3+/ySm3+phosphor is y=0.03.The intrinsic emission of rare earth Dy3+and Sm3+are obtained through CaMoO4 matrix energy transfer,and the energy transfer of Dy3+to Sm3+is also observed.Under the excitation of 405 nm,the CIE coordinates of CaMoO4∶0.03Dy3+/ySm3+(y=0.01～0.05)change from cyan region to white region,and the CaMoO4∶0.03Dy3+/ySm3+(y=0.03～0.05)phosphors exhibit white emission.Therefore,Dy3+/Sm3+co-doped CaMoO4 phosphor is a single matrix white LED phosphor with potential application value.关键词
CaMoO4/Dy3+掺杂/Dy3+/Sm3+共掺杂/水热法/发光性能/白光荧光粉Key words
CaMoO4/Dy3+doping/Dy3+/Sm3+co-doping/hydrothermal method/luminescent property/white phosphor分类
化学化工引用本文复制引用
孟晓燕,甘欣,王春洋,朱瑶贤,杨流赛,吴丽丹,董洪霞..CaMoO4∶Dy3+/Sm3+白光荧光粉的设计、合成及发光性能研究[J].人工晶体学报,2025,54(4):663-673,11.基金项目
江西省教育厅科学技术研究项目(GJJ2401709) （GJJ2401709）
江西省自然科学基金项目(20212BAB213029) （20212BAB213029）
大学生创新训练项目(2024-CX-19) （2024-CX-19）
