Quenching of the upconversion luminescence of NaYF4:Yb3+,Er3+ and NaYF4:Yb3+,Tm3+ nanophosphors by water: the role of the sensitizer Yb3+ in non-radiative relaxation

Nanoscale, 2015, 7,11746-11757
DOI: 10.1039/C5NR02100F, Paper

Riikka Arppe, Iko Hyppanen, Niina Perala, Riikka Peltomaa, Martin Kaiser, Christian Wurth, Simon Christ, Ute Resch-Genger, Michael Schaferling, Tero Soukka
Water quenches the excited Yb³⁺ sensitizers having a strong effect on upconversion luminescence.
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