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Proceedings Paper

Amorphous multilayer thin films prepared by the auto-dip-coating technique
Author(s): Qingle Wu; Yuhuan Xu; John D. Mackenzie
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Paper Abstract

Thin films composed of alternating layers of amorphous barium titanate (BaTiO3) and amorphous silica (SiO2) have been fabricated by the sol-gel technique. Thin films of pure amorphous BaTiO3 were also fabricated by the sol-gel technique for comparison. A special dip-coating and heating apparatus was built in order to coat and fire films of up to 20 layers. The cycles were adjustable and time-controlled. Upon firing to 400 degree(s)C, the films remained amorphous. The thickness and refractive index of each film, varying with concentration of solution, were measured by ellipsometry. The films were characterized by x- ray diffraction, electron diffraction and scanning electron microscopy (SEM). UV-visible absorption spectra of the films also confirmed the multilayered structure.

Paper Details

Date Published: 13 October 1994
PDF: 12 pages
Proc. SPIE 2288, Sol-Gel Optics III, (13 October 1994); doi: 10.1117/12.188985
Show Author Affiliations
Qingle Wu, 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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