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Lead Titanate Thin Films Prepared by Metallorganic Chemical Vapor Deposion (MOCVD) on Sapphire, Pt, and RuOx Substrates

  • Warren C. Hendricks (a1), Seshu B. Desu (a1) and Chien H. Peng (a1)
Abstract

Transparent and highly specular PbTiO3 thin films were deposited on sapphire, platinum and ruthenium oxide-coated silicon wafers by hot-wall metallorganic chemical vapor deposition (MOCVD). Lead bis-tetramethylheptadionate and titanium ethoxide were used as chemical precursors. Films were deposited over a range of experimental conditions. X-ray diffraction (XRD) was used to determine the phases present in the films; Scanning Electron Microscopy (SEM) was used to examine the surface morphology and Energy Dispersive Spectroscopy (EDS) was used to determine the composition. Optical spectra were obtained to confirm the highly dense and transparent nature of the films. The chemical stability of the ruthenium oxide substrates in the MOCVD environment as well as the existence of a high-temperature deposition regime for composition control are also discussed.

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2. Yoo, I. K., Desu, S. B., Mat. Sci. and Eng. B, 13 (4), 319322 (1992).
3. Peng, C. H., PhD thesis, Virginia Polytechnic Institute & State University, 1992.
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6. Tagirov, V. K., Chizhikov, D. M., Kazenas, E. K., and Shubochkin, L. K., Zhurnal Neorganicheskoi Khimii, 20, 1135 (1975).
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  • ISSN: -
  • EISSN: 1946-4274
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