无机材料学报2018，Vol.33Issue(5)：521-527,7.DOI:10.15541/jim20170310
Er3+掺杂调控NaY(WO4)2:Dy3+的上转换发光性能
Multicolor Upconversion Emission Tuning of NaY(WO4)2:Dy3+via Er3+Doping
摘要
Abstract
A series of Dy3+and Er3+co-doped NaY(WO4)2phosphors were synthesized by hydrothermal reactions. X-ray diffraction and scanning electron microscope were used to characterize their crystal structure and morphology. The upconversion luminescent properties and the fluorescence lifetime of 4F9/2→6H13/2transition of the Dy3+ion were also investigated. Moreover, the energy transfer from Dy3+to Er3+ions in NaY(WO4)2: Dy3+, Er3+was ana-lyzed in detail. The results indicated that all the samples had pure tetragonal crystal structure. Furthermore, the micrometer-sized needle spheres and excellent dispersion of the particles were obtained by adding polyethylene glycol (PEG-2000) as surfactant. Under near infrared light excitation at 780 nm, the NaY(WO4)2: Dy3+, Er3+samples exhib-ited blue emission at 480 nm (4F9/2→6H15/2transition of Dy3+), yellow emission at 576 nm (4F9/2→6H13/2transition of Dy3+) and green emission at 531 and 554 nm (2H11/2→4I15/2and 4S3/2→4I15/2transition of Er3+, respectively). The en-ergy transfer process from Dy3+to Er3+is a resonant transfer, in which electric dipole-dipole interaction plays a leading role. By adjusting the doping concentration of Er3+in NaY(WO4)2: 1.0mol% Dy3+, xmol% Er3+phosphors, conversion from quasi white light to blue light can be realized.关键词
上转换发光/NaY(WO4)2:Dy3+；Er3+/聚乙二醇/能量传递Key words
up-conversion luminescence/NaY(WO4)2: Dy3+,Er3+/polyethylene glycol/energy transfer分类
通用工业技术引用本文复制引用
史忠祥,王晶,关昕..Er3+掺杂调控NaY(WO4)2:Dy3+的上转换发光性能[J].无机材料学报,2018,33(5):521-527,7.基金项目
国家重点研发计划项目(2017YFB0310300) （2017YFB0310300）
国家自然科学基金(51274052) （51274052）
辽宁省自然科学基金(201602134) （201602134）
辽宁省教育厅资助项目(JDL2016002)National Key Research and Development Program of China(2017YFB0310300) （JDL2016002）
National Natural Science Foundation of China(51274052) （51274052）
Natural Science Foundation of Liaoning Province(201602134) （201602134）
Project Supported by Department of Education Liaoning Province(JDL2016002) （JDL2016002）
