Controlled synthesis and tunable luminescence of NaYF4:Eu3+ |
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| Authors: | WANG Xiuli ZHAO Shilong ZHANG Yijian Sheng Guoding |
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| Affiliation: | 1(1.College of Materials and Chemistry,Chemical Engineering,Hangzhou Normal University,Hangzhou 310036,China;2.College of Materials Science and Engineering,China Jiliang University,Hangzhou 310018,China) |
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| Abstract: | High quality NaYF4:Eu3+ luminescent materials were successfully synthesized via a facile template technique by hydrothermal method.The samples were characterized by X-ray powder diffraction(XRD),transmission electron microscopy(TEM) and fluorescence spectroscopy(FS).The incorporating of Eu3+ ions into NaYF4 crystal lattice influenced the symmetry types of NaYF4 crystals,resulting in phase transformation of NaYF4 crystals between α and β phase.The pure hexagonal phase of branched NaYF4:Eu3+ was obtained as the Eu3+ concentration reached 15 mol.%.In addition,the luminescence color was tuned by changing the doping concentration of Eu3+ ions. |
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| Keywords: | NaYF4:Eu3+ controlled synthesis luminescence rare earths |
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