White-light-tunable LaMgAl 11 O 19 :x%Tb 3+ , y%Eu 3+ series phosphors were prepared using the gel-combustion method. The structure and luminescence properties were studied, and the energy transfer of Eu 3+ and Tb 3+ in the LaMgAl 11 O 19 system was also discussed. The results showed that the LaMgAl 11 O 19 matrix exhibited strong emission in the blue-light region under the excitation of ultraviolet light, which resulted in conditions suitable for the preparation of white-light-tunable phosphors.The emission spectra of LaMgAl 11 O 19 :2%Tb 3+ , y%Eu 3+ (y = 2%-9%) series phosphors were obtained through optimization experiments. It could be seen from the CIE diagram that by adjusting the doping quantities of Eu 3+ and Tb 3+ in the LaMgAl 11 O 19 host, multicolor luminescence and white light emission in a single host could be achieved. By calculating the energy transfer efficiency and critical distance between Eu 3+ and Tb 3+ series phosphors, the mechanism of energy transfer between Tb 3+ and Eu 3+ was found to be the interaction between electric quadruples.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
hi@scite.ai
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.