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

J Am Chem Soc. 2008 Apr 30;130(17):5642-3. doi: 10.1021/ja800868a. Epub 2008 Apr 5.

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.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Erbium / chemistry
  • Fluorescent Dyes / chemistry*
  • Fluorides / chemistry*
  • Lanthanoid Series Elements / chemistry*
  • Microscopy, Electron, Transmission / methods
  • Nanoparticles / chemistry*
  • Nanoparticles / ultrastructure
  • Spectrophotometry, Infrared / methods*
  • Thulium / chemistry
  • Ytterbium / chemistry
  • Yttrium / chemistry*

Substances

  • Fluorescent Dyes
  • Lanthanoid Series Elements
  • sodium yttriumtetrafluoride
  • Yttrium
  • Erbium
  • Thulium
  • Ytterbium
  • Fluorides