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
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Research Support, Non-U.S. Gov't
MeSH terms
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Cations
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Colloids / chemistry*
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Crystallization
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Erbium / chemistry
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Hot Temperature
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Lanthanoid Series Elements / chemistry*
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Luminescence*
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Luminescent Measurements
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Microscopy, Electron, Transmission
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Nanostructures / chemistry*
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Nanostructures / ultrastructure
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Sodium Fluoride / analogs & derivatives
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Sodium Fluoride / chemical synthesis*
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Thulium / chemistry
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Trifluoroacetic Acid / chemistry*
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Ytterbium / chemistry
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Yttrium / chemistry*
Substances
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Cations
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Colloids
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Lanthanoid Series Elements
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Yttrium
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Erbium
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Thulium
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Sodium Fluoride
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Trifluoroacetic Acid
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Ytterbium