Upconversion luminescence and Visible-Infrared Properties of β-NaLuF4:Er3+ Microcrystals Synthesized by the Surfactant-Assisted Hydrothermal Method

<table>Power dependence of UC emission intensity of 4F9/2<svg height="7.6374998" id="M31" style="vertical-align:-0.0pt" version="1.1" viewbox="0 0 19.174999 7.6374998" width="19.174999" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
<g transform="matrix(.017,-0,0,-.017,2.9,7.575)"><path d="M901 255q-71 -62 -185 -187l-22 15l102 147h-727v50h727l-102 147l22 15q114 -125 185 -187z" id="x2192"></path></g>
</svg>4I15/2 emission of β-NaLuF4:12 mol%Er3+ submicron crystals using EDTA as surfactant under 1.54 μm laser diode pump. Inset shows dependence of UC emission intensity on excitation powder.</table>

Journal of Nanomaterials

fig6

Figure 6

Figure 6: Upconversion luminescence and Visible-Infrared Properties of β-NaLuF4:Er3+ Microcrystals Synthesized by the Surfactant-Assisted Hydrothermal Method

Figure 6 | Upconversion luminescence and Visible-Infrared Properties of β-NaLuF4:Er3+ Microcrystals Synthesized by the Surfactant-Assisted Hydrothermal Method 