Quenching of the upconversion luminescence of NaYF 4 :Yb 3+ ,Er 3+ and NaYF 4 :Yb 3+ ,Tm 3+ nanophosphors by water: the role of the sensitizer Yb 3+ in non-radiative relaxation

Arppe, Riikka; Hyppänen, Iko; Perälä, Niina; Peltomaa, Riikka; Kaiser, Martin; Würth, Christian; Christ, Simon; Resch‐Genger, Ute; Schäferling, Michael; Soukka, Tero

doi:10.1039/c5nr02100f

Public

Quenching of the upconversion luminescence of NaYF 4 :Yb 3+ ,Er 3+ and NaYF 4 :Yb 3+ ,Tm 3+ nanophosphors by water: the role of the sensitizer Yb 3+ in non-radiative relaxation

Published in Nanoscale • Jan 1, 2015

Authors:

Riikka Arppe

Iko Hyppänen

Niina Perälä

Abstract

We have studied the mechanisms of water-based quenching of the upconversion photoluminescence of upconverting nanophosphors (UCNPs) via luminescence decay measurements for a better understanding of the non-radiative deactivation pathways responsible for the relatively low upconversion luminescence e...

Subject

Photon upconversion

Luminescence

Photoluminescence

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