Upconversion luminescence behavior of single nanoparticles.

Abstract

Upconversion nanoparticles (UCNPs) have made a significant and valuable contribution to materials science, photophysics, and biomedicine due to their specific spectroscopic characteristics. However, the ensemble spectroscopy of UCNPs is limited because of the electronic behavior in average effect, which ignores the fact that these nanoparticles are… (More)
DOI: 10.1039/c5nr02979a

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