Optical and magnetic properties of elliptical hematite (α-Fe2O3) nanoparticles coated with uniform continuous layers of silica of different thickness

Jen Bin Shi, Chia-Wei Lee, Jhe Wei Guo, Min Jung Cheng, Chien Wu, Chih Jung Chen, Cheng Yu Chen, Ya Ting Lin, Chung Chieh Chang

Research output: Contribution to journalArticle

24 Citations (Scopus)

Abstract

Elliptical-type α-Fe2O3 nanoparticles with/without silica shell have been prepared. The core particles were coated with uniform continuous layers of silica of two different thicknesses by hydrolysis of TEOS. The obtained HCP structure elliptical α-Fe2O3 nanoparticles with ∼ 240 nm length and 100 nm width is polycrystalline in nature. The thicknesses of SiO2 shell coated on α-Fe2O3 are about 55 and 30 nm, respectively. The optical and magnetic properties of these nanoparticles have been investigated.

Original languageEnglish
Pages (from-to)5268-5270
Number of pages3
JournalMaterials Letters
Volume61
Issue number30
DOIs
Publication statusPublished - Dec 2007
Externally publishedYes

Keywords

  • Elliptical α-FeO nanoparticles
  • Magnetic materials
  • Nanomaterials
  • Optical properties

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Fingerprint Dive into the research topics of 'Optical and magnetic properties of elliptical hematite (α-Fe<sub>2</sub>O<sub>3</sub>) nanoparticles coated with uniform continuous layers of silica of different thickness'. Together they form a unique fingerprint.

  • Cite this

    Shi, J. B., Lee, C-W., Guo, J. W., Cheng, M. J., Wu, C., Chen, C. J., Chen, C. Y., Lin, Y. T., & Chang, C. C. (2007). Optical and magnetic properties of elliptical hematite (α-Fe2O3) nanoparticles coated with uniform continuous layers of silica of different thickness. Materials Letters, 61(30), 5268-5270. https://doi.org/10.1016/j.matlet.2007.04.045