Dongdong Li, Jianye Mo, Chong Wang, Wei Liu, Haibo Ge, Dongdong Han, Aihua Hao, Baoyu Chai, Jiangbo She. Screen printing of upconversion NaYF4:Yb3+/Eu3+ with Li+ doped for anti-counterfeiting application[J]. Chinese Optics Letters, 2020, 18(11): 110501
- Chinese Optics Letters
- Vol. 18, Issue 11, 110501 (2020)
Fig. 1. XRD diffraction pattern of
Fig. 2. Diffraction peak of
Fig. 3. SEM images of
Fig. 4. Schematic diagram of energy level transition of
Fig. 5. Fluorescence spectra of
Fig. 6. CIE of
Fig. 7. Screen printing imaging process.
Fig. 8. Screen printing imaging results of different materials. (a) Plastic, (b) optical disc, (c) glass, (d) printing table.
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