Figure 6: Proposed ET mechanism of red UC emission in β-NaLuF4:Yb3+, Tm3+, Er3+ (with high Er3+ content).
From: Morphology evolution and pure red upconversion mechanism of β-NaLuF4 crystals
Figure 6: Proposed ET mechanism of red UC emission in β-NaLuF4:Yb3+, Tm3+, Er3+ (with high Er3+ content). | Scientific Reports
