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. 2023 Oct 16;13:17556. doi: 10.1038/s41598-023-44947-1

Figure 3.

Figure 3

XRD patterns of (a) NaYF4: 5%Yb3+/30%Mn2+ UCNPs at different synthesis temperatures (120 °C, 140 °C, 160 °C, 180 °C, 200 °C), (b) NaYF4: 5%Yb3+/x%Mn2+ (x% = 30, 40, 50, 60, 70%) UCNPs, (c) NaYF4 UCNPs at different Yb3+ concentration (NaYF4:40%Mn2+ /1%Yb3+ and NaYF4:40%Mn2+ /40%Yb3+). The analyzed samples were in solution form.