Yao Xie, Guotao Sun, Jiwei Li, Renrui Sun, Lining Sun*, Er-Sensitized Upconversion/Down-Shifting Luminescence in Metal-Organic Frameworks, Journal of Physical Chemistry Letters, J. Phys. Chem. Lett., 2023, 14 (47), 10624−10629.https://doi.org/10.1021/acs.jpclett.3c02859.