Synthesis and photoluminescence properties of self-assembled Eu-doped ZnO hollow microspheres

Authors

  • Jin Xu,

    Corresponding author
    1. Department of Materials Science and Engineering, College of Materials, Xiamen University, Siming South Road 422, 361005 Xiamen, People's Republic of China
    2. Key Laboratory for Fire Retardant Materials of Fujian Province, Xiamen University, Siming South Road 422, 361005 Xiamen, People's Republic of China
    • Phone: +86 592 2180775, Fax: +86 592 2183937
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  • Nating Wang,

    1. Department of Materials Science and Engineering, College of Materials, Xiamen University, Siming South Road 422, 361005 Xiamen, People's Republic of China
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  • Weiqiang Wang

    1. Department of Materials Science and Engineering, College of Materials, Xiamen University, Siming South Road 422, 361005 Xiamen, People's Republic of China
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Abstract

ZnO hollow microspheres with a shell wall consisting of crystalline ZnO nanosheets were synthesized by using Zn5(CO3)2(OH)6 microspheres as spherical templates. Zn5(CO3)2(OH)6 microspheres were first fabricated by a solvothermal procedure in an ethylene glycol (EG)–water solution. ZnO microspheres with a hexagonal structure were identified by means of X-ray diffraction (XRD) and selected-area electron diffraction (SAED). On the basis of the results, a possible self-assembly growth mechanism was proposed. It reveals that the EG played an important role in determining the hollow morphologies of Zn5(CO3)2(OH)6 structures. In addition, photoluminescence (PL) investigation of ZnO:Eu3+ suggested that a direct energy transfer occurred, which was ascribed to the energy transfer from ZnO host to Eu3+ ions.

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