Laser & Optoelectronics Progress, Volume. 59, Issue 7, 0716001(2022)
Study on Up-Conversion Luminescence Properties of Rare Earth Ion Doped Microcrystals
In order to improve the up-conversion fluorescence intensity of rare earth ions doped micro/nano materials, a series of NaYF4∶Yb3+, Tm3+ and NaLuF4∶Yb3+, Tm3+ microcrystals are synthesized by oleic acid and ethanol assisted hydrothermal method. The hydrothermal products are annealed at low temperature. At the same time, the morphology of the microcrystals is fine-tuned by controlling the doping amount of Yb3+ to achieve spectral regulation. The results of spectral studies show that the fluorescence intensity of the samples annealed at low temperature is significantly enhanced compared with that of the parent crystals. A series of NaLuF4∶Yb3+, Tm3+ microcrystals are synthesized by hydrothermal method using sodium citrate as surfactant, and the fluorescence intensity is further improved, and the fluorescence intensity increased with the increase of Yb3+ concentration. Subsequently, Ho3+ is introduced into the NaLuF4∶Yb3+, Tm3+ system to regulate the fluorescence color and luminous intensity by adjusting the doping amount of Tm3+ and Ho3+. The changes of fluorescence intensity and color under different doping amounts are studied by laser spectroscopy. Taking into account the excellent fluorescence properties of NaLuF4∶Yb3+, Tm3+, which is made for safety ink and applied to anti-counterfeiting, showing its potential application in the anti-counterfeiting field.
Get Citation
Copy Citation Text
Jialing Wu. Study on Up-Conversion Luminescence Properties of Rare Earth Ion Doped Microcrystals[J]. Laser & Optoelectronics Progress, 2022, 59(7): 0716001
Category: Materials
Received: Jun. 7, 2021
Accepted: Jun. 29, 2021
Published Online: Apr. 7, 2022
The Author Email: Wu Jialing (18329379743@163.com)