Upconversion multicolor fine-tuning : Visible to near-infrared emission from lanthanide-doped NaYF4 nanoparticles

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

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Original languageEnglish
Pages (from-to)5642-5643
Journal / PublicationJournal of the American Chemical Society
Volume130
Issue number17
Publication statusPublished - 30 Apr 2008
Externally publishedYes

Abstract

A general approach to fine-tuning the upconversion emission colors, based upon a single host source of NaYF4 nanoparticles doped with Yb3+, Tm3+, and Er3+, is presented. The emission intensity balance can be precisely controlled using different host-activator systems and dopant concentrations. The approach allows access to a wide range of luminescence emission from visible to near-infrared by single-wavelength excitation. Copyright © 2008 American Chemical Society.