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Proceedings Paper

Epitaxial growth of KNbO3 and Fe-doped KNbO3 films via sol-gel processing
Author(s): Chih-Hsing Cheng; Yuhuan Xu; John D. Mackenzie
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Paper 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. Both KNbO3 and Fe-doped KNbO3 films were epitaxially crystallized at 750 degree(s)C for 3 hours in air on SrTiO3 single crystal substrates. Excess potassium in the sol-gel solution (K/Nb equals 1.1) was important to obtain single phase films. 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 (2-EHA) to alkoxides were applied to control the hydrolysis rate of the sol-gel solution. Dense films were produced after using the modified alkoxides solution as stock solution.

Paper Details

Date Published: 13 October 1994
PDF: 11 pages
Proc. SPIE 2288, Sol-Gel Optics III, (13 October 1994); doi: 10.1117/12.188978
Show Author Affiliations
Chih-Hsing Cheng, Univ. of California/Los Angeles (United States)
Yuhuan Xu, Univ. of California/Los Angeles (United States)
John D. Mackenzie, Univ. of California/Los Angeles (United States)

Published in SPIE Proceedings Vol. 2288:
Sol-Gel Optics III
John D. Mackenzie, Editor(s)

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