Synthesis of colloidal upconverting NaYF4 nanocrystals doped with Er3+, Yb3+ and Tm3+, Yb3+ via thermal decomposition of lanthanide trifluoroacetate precursors

J Am Chem Soc. 2006 Jun 14;128(23):7444-5. doi: 10.1021/ja061848b.

Abstract

Upconverting lanthanide-doped nanocrystals were synthesized via the thermal decomposition of trifluoroacetate precursors in a mixture of oleic acid and octadecene. This method provides highly luminescent nanoparticles through a simple one-pot technique with only one preparatory step. The Er3+, Yb3+ and Tm3+, Yb3+ doped cubic NaYF4 nanocrystals are colloidally stable in nonpolar organic solvents and exhibit green/red and blue upconversion luminescence, respectively, under 977 nm laser excitation with low power densities.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Cations
  • Colloids / chemistry*
  • Crystallization
  • Erbium / chemistry
  • Hot Temperature
  • Lanthanoid Series Elements / chemistry*
  • Luminescence*
  • Luminescent Measurements
  • Microscopy, Electron, Transmission
  • Nanostructures / chemistry*
  • Nanostructures / ultrastructure
  • Sodium Fluoride / analogs & derivatives
  • Sodium Fluoride / chemical synthesis*
  • Thulium / chemistry
  • Trifluoroacetic Acid / chemistry*
  • Ytterbium / chemistry
  • Yttrium / chemistry*

Substances

  • Cations
  • Colloids
  • Lanthanoid Series Elements
  • Yttrium
  • Erbium
  • Thulium
  • Sodium Fluoride
  • Trifluoroacetic Acid
  • Ytterbium