Dong-dong LI, Tian YANG, Xin-yu MA, Dong-dong HAN, Jiang-bo SHE. Luminous Properties of near Infrared Excited Upconversion Luminescent Materials Based on NaYF4[J]. Acta Photonica Sinica, 2020, 49(7): 716001
- Acta Photonica Sinica
- Vol. 49, Issue 7, 716001 (2020)
Fig. 1. XRD patterns of NaYF4:Yb3+/Tb3+（Yb3+∶Tb3+=20∶1）
Fig. 2. XRD patterns of NaYF4:Yb3+/Tm3+（Yb3+∶Tm3+=10∶1）
Fig. 3. Scanning electron microscope (SEM) images of NaYF4:Yb3+/Tb3+(Yb3+/Tb3+=10∶1)particles and Energy Dispersive X-Ray Spectroscopy(EDS)
Fig. 4. Scanning electron microscope (SEM) images of NaYF4:Yb3+/Tm3+
（Yb3+∶Tm3+=15∶1）particles and Energy Dispersive X-Ray Spectroscopy (EDS)
Fig. 5. The emission spectrum of NaYF4:Yb3+/Tb3+under the excitation of 980 nm
Fig. 6. Energy level transition diagram of Yb3+/ Tb3+
Fig. 7. The emission spectrum of NaYF4:Yb3+/Tm3+under the excitation of 980 nm
Fig. 8. Energy level transition diagram of Yb3+/Tm3+
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