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Issue 11, 2010
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Fabrication, formation mechanism and optical properties of novel single-crystal Er3+ doped NaYbF4 micro-tubes

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Abstract

A novel Er3+ doped NaYbF4 hexagonal-prismatic micro-tubular structure with single crystalline nature was synthesized by a facile hydrothermal method. The typical morphologies and structure were investigated by transmission electron microscopy (TEM) and scanning electron microscopy (SEM) which revealed that the as-prepared samples presented a tubular structure with open ends and uniform size. Based on TEM analysis of the samples prepared at different hydrothermal treatment times, the formation mechanism of the NaYbF4 hexagonal-prismatic micro-tube was concluded to be that the nano-sized clusters nucleated first and then self-assembly aggregated into thin sheets and finally rolled into NaYbF4 hexagonal-prismatic micro-tubes. Intense red upconversion luminescence was observed by the naked eye under 980 nm excitation, which indicated that the novel NaYbF4 micro-tubular structure is a potential host material for photoluminescence. Due to the unique luminescence, these NaYbF4 hexagonal-prismatic micro-tubes may be promising for further fundamental research and find applications in color displays and solid-state lasers.

Graphical abstract: Fabrication, formation mechanism and optical properties of novel single-crystal Er3+ doped NaYbF4 micro-tubes

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Publication details

The article was received on 01 Oct 2009, accepted on 21 Dec 2009 and first published on 29 Jan 2010


Article type: Paper
DOI: 10.1039/B920496B
Citation: J. Mater. Chem., 2010,20, 2152-2156
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    Fabrication, formation mechanism and optical properties of novel single-crystal Er3+ doped NaYbF4 micro-tubes

    S. Zeng, G. Ren and Q. Yang, J. Mater. Chem., 2010, 20, 2152
    DOI: 10.1039/B920496B

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