Diluted magnetic semiconductors based on Mn-doped In sub(2)O sub(3) nanoparticles

Here we report a novel pathway for the synthesis of Indium oxide and Mn(III)-doped indium oxide nanoparticles (NPs) from mechanochemical activation in absence of basic medium. Nps ~8 nm were obtained after annealing the powder precursor in air at 400 [degrees]C for 1 h. X-ray diffraction (XRD) analy...

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Bibliographic Details
Published in:Journal of alloys and compounds 2014-12, Vol.615, p.S522-S525
Main Authors: Vazquez-Olmos, America R, Gomez-Peralta, Juan I, Sato-Berru, Roberto Y, Fernandez-Osorio, Ana L
Format: Article
Language:English
Subjects:
Activation
Fourier transforms
Indium oxides
Infrared spectroscopy
Nanoparticles
Pathways
Semiconductors
Spectra
Synthesis
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Summary:Here we report a novel pathway for the synthesis of Indium oxide and Mn(III)-doped indium oxide nanoparticles (NPs) from mechanochemical activation in absence of basic medium. Nps ~8 nm were obtained after annealing the powder precursor in air at 400 [degrees]C for 1 h. X-ray diffraction (XRD) analysis and high resolution transmission electron microscopy (HR-TEM) reveal that the Nps are single-phase cubic structure of ln sub(2)O sub(3). Fourier transform infrared spectroscopy (FTIR), Raman, and ultraviolet-visible (UV-vis) spectra suggest the In(III) substitution by Mn(III). Photoluminescence (PL) and electron paramagnetic resonance (EPR) spectra show clear evidence of paramagnetic centers as oxygen and indium defects. This synthesis pathway is particularly suitable for large-scale and high-quality of semiconductor metallic oxide nanoparticles production due to its simple process and low cost.
ISSN:0925-8388
DOI:10.1016/j.jallcom.2014.01.085