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

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

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Author(s)

Detail(s)

Original languageEnglish
Pages (from-to)1067-1081
Journal / PublicationInorganic Chemistry Frontiers
Volume7
Issue number5
Online published6 Dec 2019
Publication statusPublished - 7 Mar 2020

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.

Research Area(s)

  • NEAR-INFRARED LIGHT, CORE-SHELL NANOPARTICLES, ANTICANCER DRUG-DELIVERY, UPCONVERTING NANOPARTICLES, CORE/SHELL NANOPARTICLES, LUMINESCENCE ENHANCEMENT, NAYBF4 NANOPARTICLES, DIRECT VISUALIZATION, ELEMENTAL MIGRATION, VERSATILE PLATFORM