title: Synthesis of colloidal upconverting NaYF4 nanocrystals doped with Er3+, Yb3+ and Tm3+, Yb3+ via thermal decomposition of lanthanide trifluoroacetate precursors.
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.
authors.affiliation: Department of Chemistry and Biochemistry, Concordia University, 7141 Sherbrooke Street West, Montreal, QC H4B 1R6, Canada.
authors.forename: John-Christopher
authors.initials: JC
authors.lastname: Boyer
authors.forename: Fiorenzo
authors.initials: F
authors.lastname: Vetrone
authors.forename: Louis A
authors.initials: LA
authors.lastname: Cuccia
authors.forename: John A
authors.initials: JA
authors.lastname: Capobianco
mesh_terms: D002412:Cations; D003102:Colloids / Q000737:chemistry*; D003460:Crystallization; D004871:Erbium / Q000737:chemistry; D006358:Hot Temperature; D028581:Lanthanoid Series Elements / Q000737:chemistry*; D049449:Luminescence; D008163:Luminescent Measurements; D046529:Microscopy, Electron, Transmission; D049329:Nanostructures / Q000737:chemistry* / Q000648:ultrastructure; D012969:Sodium Fluoride / Q000031:analogs & derivatives / Q000138:chemical synthesis*; D013932:Thulium / Q000737:chemistry; D014269:Trifluoroacetic Acid / Q000737:chemistry*; D015018:Ytterbium / Q000737:chemistry; D015019:Yttrium / Q000737:chemistry*
chemical_list: D002412:Cations; D003102:Colloids; D028581:Lanthanoid Series Elements; D015019:Yttrium; D004871:Erbium; D013932:Thulium; D012969:Sodium Fluoride; D014269:Trifluoroacetic Acid; D015018:Ytterbium