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HAO LI1, YIXUAN LU1, CHENXIA LI1,* , DEGANG DENG2,* , KEZHEN RONG1, XUFENG JING1, LE WANG1, SHIQING XU2
- College of Optical and Electronic Technology, China Jiliang University, Hangzhou, 310018, China
- College of Material Science and Engineering, China Jiliang University, Hangzhou, 310018, China
A series of near-infrared quantum-cutting Tb3+ -based Tb1-xZn(B5O10):xYb3+ phosphor was prepared by a high-temperature solid-state method according to rare-earth’s self-activation characteristic. The lattice structure and luminescence performances under UV-light’s excitation were studied. The conclusion that the doped Yb3+ ion only occupies Tb3+ ion’s site was revealed by XRD patterns. The Tb3+ 5D4- 7FJ characteristic emission spectra and the 974 nm near-infrared light generated by Yb3+ 2F5/2- 2F7/2 emissions were discussed in Tb1-xZn(B5O10):xYb3+ under 365-nm-UV-light excitation. The cooperative energy transfer mechanism between Tb3+ and Yb3+ was established by the fluorescence spectra. The above investigations indicate Tb1-xZn(B5O10):xYb3+ a potential down-converter layer in silicon-based solar cells..
Phosphor, Tb1-xZn(B5O10):xYb3+, Cooperative energy transfer.
Submitted at: Aug. 26, 2018
Accepted at: June 14, 2019
HAO LI, YIXUAN LU, CHENXIA LI, DEGANG DENG, KEZHEN RONG, XUFENG JING, LE WANG, SHIQING XU, Near-infrared down-conversion luminescence in Yb3+ doped self-activated TbZn(B5O10) phosphor, Journal of Optoelectronics and Advanced Materials Vol. 21, Iss. 5-6, pp. 373-384 (2019)
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