Upconversion Luminescence and Magnetic Turning of NaLuF4:Yb3+/Tm3+/Gd3+ Nanoparticles and Their Application for Detecting Acriflavine

<div>The upconversion luminescence emission properties: (a) relationships between the luminescent intensity of NaLuF4:Yb3+/Tm3+/Gd3+ nanocrystals and the concentration of Gd3+; (b) relationships between the Blue-to-UV and Blue-to-Red intensity ratios and the concentration of Gd3+.</div>

Journal of Nanomaterials

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Figure 2: Upconversion Luminescence and Magnetic Turning of NaLuF4:Yb3+/Tm3+/Gd3+ Nanoparticles and Their Application for Detecting Acriflavine