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Recent advances in the synthesis and application of Yb-based fluoride upconversion nanoparticles

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Abstract

Lanthanide-doped upconversion nanoparticles are undergoing extensive investigations in many fields, particularly in biophotonics and photophysics. In an attempt to boost upconversion emission intensities, Yb-based fluoride crystals have been recently identified as more efficient alternatives to classical NaYF4 crystals. Yb-Based fluoride crystals featuring a maximal occupancy of the host lattice by Yb3+ sensitizers facilitate the utilization of excitation light and promote energy transfer to upconverting activators, which contributes to a significant enhancement of upconversion luminescence. In this article, we present a survey of recent studies on chemical preparations of Yb-based fluoride nanoparticles with well-defined size and morphology. We show that these Yb-based upconversion nanoparticles are playing important roles in a few emerging applications such as optogenetics, biodetection and upconversion lasing.

Graphical abstract: Recent advances in the synthesis and application of Yb-based fluoride upconversion nanoparticles

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Article information


Submitted
18 Oct 2019
Accepted
06 Dec 2019
First published
06 Dec 2019

Inorg. Chem. Front., 2020, Advance Article
Article type
Review Article

Recent advances in the synthesis and application of Yb-based fluoride upconversion nanoparticles

B. Chen and F. Wang, Inorg. Chem. Front., 2020, Advance Article , DOI: 10.1039/C9QI01358J

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