Synthesis and Characterization of PMN-PT Thin Films Prepared by a New Chemical Route
Synthesis and Characterization of PMN-PT Thin Films Prepared by a New Chemical Route
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新化学路线制备PMN-PT薄膜的合成与表征
DOI:
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发表时间:
2008
期刊:
影响因子:
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通讯作者:
O. de Sanctis
中科院分区:
文献类型:
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作者:
M. Santiago;M. Stachiotti;R. Machado;N. Pellegri;O. de Sanctis
Thin films of lead magnesium niobate-lead titanate (PMN-PT) have been synthesized by a new and simple chemical solution deposition route, using Acetoin (3-Hydroxy 2-butanone) as chelating agent and methanol as solvent. The starting materials were Niobium ethoxide, Titanium butoxide, Magnesium ethoxide and Lead acetate. The films were deposited on Pt/Ti/SiO2/Si substrates by spin-coating. By a multilayer process, homogenous and crack-free films with thickness up to 1 μ m were obtained. The microstructure and surface morphology of the films were characterized by X-ray diffraction and atomic force microscopy (AFM) techniques. Films with a predominant perovskite phase and average grain size of ∼ 200 nm were obtained. The dielectric and ferroelectric properties are reported.