硅酸盐学报2018，Vol.46Issue(1)：136-141,6.DOI:10.14062/j.issn.0454-5648.2018.01.18
Nd3+/Yb3+/Tm3+共掺杂NaY(WO4)2纳米晶的制备及其上转换发光性能
Preparation and Upconversion Luminescence Properties of Nd3+/Yb3+/Tm3+ Co-doped NaY(WO4)2 Nanocrystals
摘要
Abstract
Nd3+/Yb3+/Tm3+ co-doped NaY(WO4)2 nanocrystals were prepared by a hydrothermal method. The crystal structure, morphology and up-conversion luminescent properties of samples were characterized by X-ray diffraction, scanning electron microscopy, Fourier transform infrared spectroscopy and luminescence spectroscopy, respectively. The results indicate that all the synthesized samples are a pure tetragonal phase of NaY(WO4)2, and the particle sizes are 50-55 nm. The up-conversion nanoparticles have a small size,well-dispersive property and water solubility by adding polyethylene glycol (i.e., PEG-2000) as a surfactant. For NaY(WO4)2:Nd3+/Yb3+/Tm3+, a blue emission peak at 469 nm and a green emission peak at 539 nm appear under 808-nm excitation. The blue emitting light results from the energy level transition of 1G4→3H6 of Tm3+, green emitting light is from the transition of 1D2→3H5 of Tm3+. In addition, the energy transfer process and the up-conversion luminescence mechanism of Nd3+→Yb3+→Tm3+ in co-doped system were also investigated.关键词
上转换发光/钨酸钇钠/稀土离子掺杂/聚乙二醇/能量传递Key words
upconversion luminescence/yttrium sodium tungstate: rare earth ions doping/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..Nd3+/Yb3+/Tm3+共掺杂NaY(WO4)2纳米晶的制备及其上转换发光性能[J].硅酸盐学报,2018,46(1):136-141,6.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(JDL2016002) 资助项目. （JDL2016002）
