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Fabrication and characterisation of substrate-free PZT thick films

Wang, Dazhi, Shi, Peng, Li, Xuemu, Zhou, Peng, Zhao, Kuipeng, Wei, Yunlong, Jiang, Chongyang, Liang, Junsheng and Dorey, R.A. (2018) Fabrication and characterisation of substrate-free PZT thick films Ceramics International, 44 (12). pp. 14258-14263.

Fabrication and characterisation of substrate-free-PZT.pdf - Author's Original

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This paper reports the preparation of dense and substrate-free PZT thick films. Electrohydrodynamic jet deposition and sol infiltration were utilized to produce dense PZT thick film, then wet chemical etching was employed to successfully remove the silicon substrate. Subsequently, a pure PZT thick film having a thickness of 14 µm without substrate was produced. The piezoresponse force microscopy technique was used to examine the piezoelectric constant (d33, f), it was found that the d33 was increased from 71 pm V−1 to 140 pm V−1, having a double increase. It was also observed that the remnant polarization (Pr) and relative permittivity (εr) of PZT film were distinctly improved after the removal of silicon substrate. The experimental result shows that the substrate clamping had great effects on the electrical properties of PZT films and its effect value was evaluated. In addition, the systematic theoretical analysis of the substrate clamping on film was deeply studied. The theoretical analysis agrees well with the experiment results, which can be used to estimate the effect value caused by the substrate clamping.

Item Type: Article
Divisions : Faculty of Engineering and Physical Sciences > Mechanical Engineering Sciences
Authors :
Wang, Dazhi
Shi, Peng
Li, Xuemu
Zhou, Peng
Zhao, Kuipeng
Wei, Yunlong
Jiang, Chongyang
Liang, Junsheng
Date : 15 August 2018
DOI : 10.1016/j.ceramint.2018.05.030
Copyright Disclaimer : © 2018. This manuscript version is made available under the CC-BY-NC-ND 4.0 license
Uncontrolled Keywords : Electrohydrodynamic jet deposition; Sol infiltration; Lift-off; Substrate-free PZT thick films
Depositing User : Clive Harris
Date Deposited : 11 Sep 2018 13:23
Last Modified : 16 Aug 2019 02:08

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