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