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Proceedings Paper

Structural and optical inhomogeneity of BaTiO3 thin films prepared by metalorganic deposition from barium 2-ethylhexanoate and titanium dimethoxy dineodecanoate
Author(s): Songsheng Xue; Wahib Ousi-Benomar; Roger A. Lessard; A. Singh; Zhouling Wu; Pao-Kuang Kuo
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Paper Abstract

Single phase BaTiO3 thin films were prepared by metalorganic deposition (MOD) using barium 2-ethylhexanoate and titanium dimethoxy dineodecanoate as the metalorganic precursors. A series of experiments were conducted on the metalorganic spin-coated films and their correspondingly annealed samples by employing experimental techniques ranging from thermogravimetric analysis, fourier transform infrared spectroscopy, X-ray diffraction, scanning electron microscopy, to various optical methods. The conclusions of our experiments are as the following: upon annealing the spin-coated films from the equimolar mixture of barium 2-ethylhexanoate and titanium dimethoxy dineodecanoate formulations, BaTiO3 is formed around annealing temperature of 600 degree(s)C via solid state reaction between BaCO3 and TiO2 (anatase). The structure of MOD prepared BaTiO3 films show pronounced inhomogeneity, viz. the crystallites are much larger near the surface of the film than near the substrate. Optical characterization shows that the scattering losses contribute dominantly to the total optical losses.

Paper Details

Date Published: 2 November 1993
PDF: 19 pages
Proc. SPIE 2046, Inhomogeneous and Quasi-Inhomogeneous Optical Coatings, (2 November 1993); doi: 10.1117/12.163550
Show Author Affiliations
Songsheng Xue, COPL/Univ. Laval (Canada)
Wahib Ousi-Benomar, COPL/Univ. Laval (Canada)
Roger A. Lessard, COPL/Univ. Laval (Canada)
A. Singh, National Optical Institute (Canada)
Zhouling Wu, Wayne State Univ. (United States)
Pao-Kuang Kuo, Wayne State Univ. (United States)

Published in SPIE Proceedings Vol. 2046:
Inhomogeneous and Quasi-Inhomogeneous Optical Coatings
Jerzy A. Dobrowolski; Pierre G. Verly, Editor(s)

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