InSb-added TiO2 nanocomposite films by RF sputtering

This study investigates the preparation of InSb-added TiO 2 nanocomposite films by RF sputtering. The optical absorption spectra are obviously shifted to visible and near-infrared regions. High-resolution transmission electron microscopy indicates that sphere-shaped InSb nanocrystals with a size of...

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Bibliographic Details
Published in:Nanoscale research letters 2013-06, Vol.8 (1), p.269-269, Article 269
Main Author: Abe, Seishi
Format: Article
Language:English
Subjects:
Chemistry and Materials Science
Materials Science
Molecular Medicine
Nano Express
Nanochemistry
Nanoscale Science and Technology
Nanotechnology
Nanotechnology and Microengineering
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Summary:This study investigates the preparation of InSb-added TiO 2 nanocomposite films by RF sputtering. The optical absorption spectra are obviously shifted to visible and near-infrared regions. High-resolution transmission electron microscopy indicates that sphere-shaped InSb nanocrystals with a size of about 15 nm are dispersed in a matrix. The X-ray diffraction result reveals that the matrix forms a phase mixture of TiO 2 and In 2 O 3 , which is also produced by decomposing the InSb during postannealing at 723 K. Therefore, the absorption shift is clearly due to quantum size effects of the InSb nanocrystals embedded in the wide-gap oxides TiO 2 and In 2 O 3 .
ISSN:1931-7573
1556-276X
1556-276X
DOI:10.1186/1556-276X-8-269