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Contribution of electrolysis current to growth of SrTiO3 thin film by the hydrothermal-electrochemical method

Published online by Cambridge University Press:  03 March 2011

Koji Kajiyoshi ,
Kunisaburo Tomono ,
Yukio Hamaji ,
Toru Kasanami  and
Masahiro Yoshimura
Koji Kajiyoshi*
Affiliation:
Ceramic Research and Development Department, Murata Manufacturing Co., Ltd., 2–26–10, Tenjin, Nagaokakyo, Kyoto 617, Japan
Kunisaburo Tomono
Affiliation:
Ceramic Research and Development Department, Murata Manufacturing Co., Ltd., 2–26–10, Tenjin, Nagaokakyo, Kyoto 617, Japan
Yukio Hamaji
Affiliation:
Ceramic Research and Development Department, Murata Manufacturing Co., Ltd., 2–26–10, Tenjin, Nagaokakyo, Kyoto 617, Japan
Toru Kasanami
Affiliation:
Ceramic Research and Development Department, Murata Manufacturing Co., Ltd., 2–26–10, Tenjin, Nagaokakyo, Kyoto 617, Japan
Masahiro Yoshimura
Affiliation:
Research Laboratory of Engineering Materials, Tokyo Institute of Technology, 4259 Nagatsuta, Midori, Yokohama 227, Japan
*
a)Author to whom correspondence should be addressed.
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Abstract

The electrolysis treatment of the hydrothermal-electrochemical method has been modified so that it permits SrTiO3 thin films to be grown on Ti electrodes being oxidized anodically in Sr(OH)2 solutions far beyond a thickness limit of several tens of nanometers hitherto attained. The relation between the total current passed through the Ti anode and the amount of the resulting SrTiO3 film was analyzed on the basis of a reaction model that interprets the anodic current to be compensated with electrons generated partly by oxidation of Ti and partly by decomposition of H2O. Current efficiency for the film growth was estimated to be in the range from 0.8 to 3% depending on the Ti electrode potential.

Type
Articles
Information
Journal of Materials Research , Volume 9 , Issue 8 , August 1994 , pp. 2109 - 2117
Copyright
Copyright © Materials Research Society 1994

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References

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