Abstract
The chemical reactions underlying the formation of a water based alkoxide sol gel solution for lead zirconate titanate thin films have been evaluated using infra-red spectroscopy and viscosity measurements. Titanium isopropoxide and zirconium propoxide are modified by acetic acid in order to use water as a solvent. Substitution reactions initially take place with the formation of titanium or zirconium alkoxide acetate and alcohol. The titanium or zirconium alkoxide acetate gradually associate through the formation of M-O-M linkages to increase the viscosity of the solution.
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Yi, G., Sayer, M. An acetic acid/water based sol-gel PZT process I: Modification of Zr and Ti alkoxides with acetic acid. Journal of Sol-Gel Science and Technology 6, 65–74 (1996). https://doi.org/10.1007/BF00402590
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DOI: https://doi.org/10.1007/BF00402590