Domino upconversion (IMAGE)

City University of Hong Kong

Domino upconversion

Caption

a) Schematic design of a NaYF4:Yb/Tm@NaErF4:Ce@NaYF4 core-shell–shell nanoparticle for domino upconversion (left panel) and the proposed energy transfer mechanism in the nanoparticle. b) A high-angle annular dark-field scanning transmission electron microscopy (HAADF-STEM) image of the NaYF4:Yb/Tm@NaErF4:Ce@NaYF4 nanoparticles, highlighting the layered structure.

Credit

Sun, T., Chen, B., Guo, Y. et al. /DOI number: 10.1038/s41467-022-28701-1

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