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Journal of Sol-Gel Science and Technology

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01-09-2014 | Original Paper

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

Authors: Hong Ha Thi Vu, Timur Sh. Atabaev, Nang Dinh Nguyen, Yoon-Hwae Hwang, Hyung-Kook Kim

Published in: Journal of Sol-Gel Science and Technology | Issue 3/2014

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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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Title: Luminescent core–shell Fe3O4@Gd2O3:Er3+, Li+ composite particles with enhanced optical properties
Authors: Hong Ha Thi Vu
Timur Sh. Atabaev
Nang Dinh Nguyen
Yoon-Hwae Hwang
Hyung-Kook Kim
Publication date: 01-09-2014
Publisher: Springer US
Published in: Journal of Sol-Gel Science and Technology / Issue 3/2014
Print ISSN: 0928-0707
Electronic ISSN: 1573-4846
DOI: https://doi.org/10.1007/s10971-014-3382-9

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