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Structural, optical, and magnetic properties of Fe-doped In2O3 nanocubes

Published online by Cambridge University Press:  31 January 2011

Dewei Chu ,
Yu-Ping Zeng ,
Dongliang Jiang ,
Zhongming Ren ,
Weili Ren ,
Junhu Wang  and
Tao Zhang
Dewei Chu
Affiliation:
Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, People’s Republic of China; and Graduate School of the Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
Yu-Ping Zeng*
Affiliation:
Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, People’s Republic of China
Dongliang Jiang
Affiliation:
Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, People’s Republic of China
Zhongming Ren
Affiliation:
Department of Materials Science and Engineering, Shanghai University, Shanghai 200072, People’s Republic of China
Weili Ren
Affiliation:
Department of Materials Science and Engineering, Shanghai University, Shanghai 200072, People’s Republic of China
Junhu Wang
Affiliation:
State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, People’s Republic of China
Tao Zhang
Affiliation:
State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, People’s Republic of China
*
a)Address all correspondence to this author. e-mail: [email protected]
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Abstract

Fe-doped In2O3 nanocubes were synthesized by a solvothermal method. The lattice constant a decreases linearly as Fe doping concentration increases, and Raman scattering measurement proves the incorporation of Fe ions into the In2O3 crystal lattice. Mössbauer spectra show the presence of mixed valence of Fe ions instead of Fe3O4, while the sample is superparamagnetic. The products with an average diameter of 80 nm have a single-crystalline phase and appear as a square shape. Magnetic measurements confirm the superparamagnetic properties of the nanocubes, and electron paramagnetic resonance studies indicate Fe ions occupy different sites in the In2O3 matrix.

Keywords

InMagnetic propertiesOptical properties
Type
Articles
Information
Journal of Materials Research , Volume 23 , Issue 10 , October 2008 , pp. 2597 - 2601
Copyright
Copyright © Materials Research Society 2008

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