铒离子/铥离子、镱离子共掺杂立方相BaLiF3的上转换发光特性

The Upconversion Luminescence Properties of Er3+/Tm3+, Yb3+-Codoped Cubic BaLiF3.

作者信息

Qiang Qinping, Guo Linna, Han Lili, Wang Yuhua

出版信息

J Nanosci Nanotechnol. 2016 Apr;16(4):3715-9. doi: 10.1166/jnn.2016.11870.

DOI:10.1166/jnn.2016.11870

Abstract

Cubic BaLiF3 samples were prepared using a facile surfactant-assisted hydrothermal-microemulsion method. The samples were characterized by X-ray Diffraction (XRD) and Scanning Electron Microscopy (SEM). The upconversion luminescence (UCL) properties of the Er3+/Tm3+, Yb3+- codoped BaLiF3 samples were measured under a 980 nm excitation wavelength. Moreover, the effects of varying the concentration of Li+ ions on the luminescence properties of Er3+, Yb3+ codoped BaLiF3 were also investigated. The Tm3+, Yb3+ codoped BaLiF3 samples displayed multi-color emissions. This behavior can be explained by the pump power dependence of the upconversion emissions and the energy levels diagram.

摘要

采用简便的表面活性剂辅助水热微乳液法制备了立方相BaLiF₃样品。通过X射线衍射（XRD）和扫描电子显微镜（SEM）对样品进行了表征。在980 nm激发波长下测量了Er³⁺/Tm³⁺、Yb³⁺共掺杂BaLiF₃样品的上转换发光（UCL）特性。此外，还研究了改变Li⁺离子浓度对Er³⁺、Yb³⁺共掺杂BaLiF₃发光性能的影响。Tm³⁺、Yb³⁺共掺杂BaLiF₃样品呈现多色发射。这种行为可以通过上转换发射对泵浦功率的依赖性和能级图来解释。