Synthesis and Characterization of Upconverting NaYF4:Er3+, Yb3+ Nanocrystals via Thermal Decomposition of Stearate Precursor
Er3+–Yb3+ codoped hexagonal NaYF4 nanocrystals were prepared via a method of thermal decomposition of stearate precursor. Their crystal structure, morphologies and photoluminescence (PL) properties were characterized by XRD, SEM, and fluorescence spectra. The hexagonal NaYF4:Er3+, Yb3+ nanocrystals could be well dispersed in cyclohexane to form a clear solution. Under 980 nm excitation, the solution of Er3+–Yb3+ codoped NaYF4 nanocrystals emits bright green upconversion fluorescence.
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Document Type: Research Article
Publication date: 2011-11-01
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