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One-Step Hydrothermal Synthesis of Butanetetracarboxylic Acid-Coated NaYF4:Yb3+, Er3+ Upconversion Phosphors with Enhancement Upconversion Luminescence

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Butanetetracarboxylic acid (BTCA)/NaYF4:Yb3+, Er3+ upconversion phosphors have been successfully synthesized by a one-step hydrothermal method. The SEM and XRD results show the asprepared phosphors exhibit main hexagonal lattice structures and uniform morphologies. FT-IR spectra confirm that the surface of as-prepared phosphors is inherently modified with the carboxyl groups. Under the excitation of 980 nm, it has been observed that BTCA/NaYF4:Yb3+, Er3+ upconversion phosphors have a higher upconversion luminescence efficiency than that coated with citrate, ethylenediamine tetraacetic acid (EDTA), or polyacrylic acid (PAA). These results indicate that the BTCA/NaYF4:Yb3+, Er3+ phosphors may have superior optical properties, and thus have great potential for biological applications.
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Document Type: Research Article

Publication date: January 1, 2016

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  • Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
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