Luminescent core–shell Fe3O4@Gd2O3:Er3+, Li+ composite particles with enhanced optical properties
| Autor: | Nang Dinh Nguyen, Yoon-Hwae Hwang, Hong Ha Thi Vu, Hyung Kook Kim, Timur Sh. Atabaev |
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| Rok vydání: | 2014 |
| Předmět: |
Photoluminescence
Materials science Gadolinium Analytical chemistry chemistry.chemical_element Nanotechnology General Chemistry Condensed Matter Physics Photon upconversion Electronic Optical and Magnetic Materials Biomaterials chemistry.chemical_compound chemistry Transmission electron microscopy Materials Chemistry Ceramics and Composites Lithium Bifunctional Luminescence Spectroscopy |
| Zdroj: | Journal of Sol-Gel Science and Technology. 71:391-395 |
| ISSN: | 1573-4846 0928-0707 |
| DOI: | 10.1007/s10971-014-3382-9 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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