Luminescent core-shell Fe3O4@Gd2O 3: Er3+, Li+ composite particles with enhanced optical properties

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

Research output: Contribution to journalArticlepeer-review

20 Citations (Scopus)


Bifunctional magneto-optical nanocomposites with Fe3O 4 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:Er 3+, 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.

Original languageEnglish
Pages (from-to)391-395
Number of pages5
JournalJournal of Sol-Gel Science and Technology
Issue number3
Publication statusPublished - 2014
Externally publishedYes


  • Bifunctional nanocomposites
  • Core-shell structure
  • Luuminescence

ASJC Scopus subject areas

  • Chemistry(all)
  • Condensed Matter Physics
  • Biomaterials
  • Ceramics and Composites
  • Electronic, Optical and Magnetic Materials
  • Materials Chemistry

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