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Luminescent core–shell Fe3O4@Gd2O3:Er3+, Li+ composite particles with enhanced optical properties

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Abstract

Bifunctional magneto-optical nanocomposites with Fe3O4 nanoparticles as a core and erbium and lithium codoped gadolinium (Gd2O3:Er3+, Li+) as the shell were synthesized successfully using a simple urea homogeneous precipitation method. The fabricated Fe3O4@Gd2O3:Er3+, Li+ particles were characterized by X-ray diffraction, field emission scanning electron microscopy, transmission electron microscopy, photoluminescence spectroscopy and quantum design vibrating sample magnetometry. The upconversion emission intensity was enhanced significantly comparing to that without Li+ ions. These bifunctional composites are expected to be potentially applied for drug delivery, cell separation and bioimaging.

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Acknowledgments

This work was supported by the National Research Foundation of Korea (Grant No. 2012R1A1B3001357).

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Authors and Affiliations

  1. Department of Nanomaterials Engineering and BK 21 Nano Fusion Technology Division, Pusan National University, Miryang, 627-706, Republic of Korea

    Hong Ha Thi Vu, Timur Sh. Atabaev, Yoon-Hwae Hwang & Hyung-Kook Kim

  2. Department of Semiconducting Nanomaterials and Devices, Faculty of Engineering Physics and Nanotechnology, University of Engineering and Technology, Vietnam National University Hanoi, 144 Xuan Thuy Street, Cau Giay, Hanoi, Vietnam

    Nang Dinh Nguyen

Authors
  1. Hong Ha Thi Vu
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  2. Timur Sh. Atabaev
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  3. Nang Dinh Nguyen
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  4. Yoon-Hwae Hwang
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  5. Hyung-Kook Kim
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Corresponding authors

Correspondence to Yoon-Hwae Hwang or Hyung-Kook Kim.

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Vu, H.H.T., Atabaev, T.S., Nguyen, N.D. et al. Luminescent core–shell Fe3O4@Gd2O3:Er3+, Li+ composite particles with enhanced optical properties. J Sol-Gel Sci Technol 71, 391–395 (2014). https://doi.org/10.1007/s10971-014-3382-9

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  • DOI: https://doi.org/10.1007/s10971-014-3382-9

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