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The Growth of Single Crystal-Like and Polycrystal KNbO3 Films Via Sol-Gel Process

Published online by Cambridge University Press:  25 February 2011

Chih-Hsing Cheng ,
Yuhuan Xu ,
John D. Mackenzie ,
Jie Zhang  and
LeRoy Eyring
Chih-Hsing Cheng
Affiliation:
Department of Materials Science andEngineering University of California, Los Angeles
Yuhuan Xu
Affiliation:
Department of Materials Science andEngineering University of California, Los Angeles
John D. Mackenzie
Affiliation:
Department of Materials Science andEngineering University of California, Los Angeles
Jie Zhang
Affiliation:
Center For Solid State Sciences, Arizona State University
LeRoy Eyring
Affiliation:
Center For Solid State Sciences, Arizona State University
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Abstract

Transparent and uniform thin films of crystalline KNbO3 were synthesized on different substrates such as SrTiO3, ZrO2, MgO and Pt by the dip-coating method using a double alkoxides solution. The film was epitaxially crystallized at the temperature around 750°C for 3 hours in air on SrTiO3 single crystal substrate. The structure of the films has been studied with X-ray and electron diffraction, and transmission electron microscopy.

Different molar ratios of 2-ethylhexanoic acid (2EHA) to alkoxides were applied to control the hydrolysis rate of the sol-gel solution. Dense films were obtained after modification of the alkoxides solution.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 271: Symposium N – Better Ceramics Through Chemistry V , 1992 , 383
Copyright
Copyright © Materials Research Society 1992

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References

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