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Synthesis of SrTiO3 nanoparticle/polymer composite film using direct current field

Published online by Cambridge University Press:  31 January 2011

Yasuko Okumura ,
Chifumi Oi ,
Wataru Sakamoto  and
Toshinobu Yogo
Yasuko Okumura
Affiliation:
Division of Nanomaterials Science, EcoTopia Science Institute, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
Chifumi Oi
Affiliation:
Division of Nanomaterials Science, EcoTopia Science Institute, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
Wataru Sakamoto
Affiliation:
Division of Nanomaterials Science, EcoTopia Science Institute, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
Toshinobu Yogo*
Affiliation:
Division of Nanomaterials Science, EcoTopia Science Institute, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
*
a)Address all correspondence to this author. e-mail: yogo@esi.nagoya-u.ac.jp
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Abstract

Nanocrystalline SrTiO3 particle/polymer composite film was synthesized from a titanium–organic film and strontium ion in aqueous solution by applying a direct current (dc) field. The titanium–organic precursor was synthesized from acetylacetone-modified titanium isopropoxide and a methacrylate derivative. Ultraviolet treatment of the titanium–organic film decreased the leaching of Ti moieties from the precursor film during dc treatment. Crystalline SrTiO3 particles were formed in the precursor films on stainless-steel substrates under a dc field above 40 °C without a high-temperature process. The size of SrTiO3 particles increased with increasing reaction temperature from 40 to 50 °C at 3.0 V/cm. SrTiO3 particles also increased in size with increasing reaction time from 35 to 60 min at 3.0 V/cm and at 50 °C. SrTiO3 particle/polymer films were synthesized on stainless-steel substrates at 3.0 V/cm and 50 °C for 60 min.

Keywords

CompositeDielectricElectrochemical synthesis
Type
Articles
Information
Journal of Materials Research , Volume 23 , Issue 1 , January 2008 , pp. 127 - 132
Copyright
Copyright © Materials Research Society 2008

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