Li-gang ZHANG, Li-hong MA, Su-ling ZHAO, Zheng XU, Hai-jun YANG, Chen-pu LI, Ke WANG, Gui-xia LIU, Yong-qing BAI, Wen-mei SHEN. Effect of Reaction Temperature on the Luminescence and Morphology of Na3ScF6:Yb/Er Nanocrystals[J]. Spectroscopy and Spectral Analysis, 2022, 42(10): 3068
- Spectroscopy and Spectral Analysis
- Vol. 42, Issue 10, 3068 (2022)
Fig. 1. XRD diffraction patterns of Na3ScF6:Yb/Er nanocrystals synthesized under different reaction temperatures
Fig. 2. Transmission electron microscope (TEM) patterns of Na3ScF6:Yb/Er samples obtained at different reaction temperatures
(a): 260 ℃; (b): 280 ℃; (c): 300 ℃
(a): 260 ℃; (b): 280 ℃; (c): 300 ℃
Fig. 3. Transmission electron microscope images of NaScF4:Yb/Er samples with different soaking times
(a): 0 min; (b): 30 min; (c): 60 min; (d): 90 min
(a): 0 min; (b): 30 min; (c): 60 min; (d): 90 min
Fig. 4. Under 980 nm excitation at room temperature, (a) up-conversion fluorescence spectra of samples and (b) luminescence photos from Canon camera
Fig. 5. Schematic energy diagram of Yb3+, Er3+ of UC process under 980 nm excitation
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