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

By J. Boyer, F. Vetrone, L. Cuccia, J. Capobianco. Journal of the American Chemical Society, 2006

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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.

Subfields: Ceramics and Composites, Materials Chemistry

View Paper: https://www.semanticscholar.org/paper/f47dcd7365047fdb26bcea3bcbf56abdc73119cd