Near-infrared(NIR)-II luminescence properties of CaF2:Yb3+/Er3+/X(X= Li+, Na+, K+)
LU Zhao, WEI Huixin, ZHAI Chunpeng
Jorunal of Functional Materials . 2023, (3): 3019 -3023 .  DOI: 10.3969/j.issn.1001-9731.2023.03.003