Piezoferroic: Multi-stacked hard/soft Pb(Ti,Zr)O3 films deposited through wet chemical method

Shakeri, Amid; Golobostanfard, Mohammad Reza; Abdizadeh, Hossein

doi:10.1016/j.matchemphys.2021.124637

Cited by 2 publications

(1 citation statement)

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“…Low-temperature sol-gel processing for piezoelectric layering with high performance is a perspective technology. Unfortunately, it requires expensive precursors, a long time for preparation of the sol, and a long time for obtaining the piezoelectric layer; all these restrict the scope of its application [10,11].…”

Section: Introductionmentioning

confidence: 99%

Electrophoretic Deposition of Rochelle Salt Nanocrystals on Aluminum Plate

2023

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A straightforward and inexpensive electrophoretic method for obtaining environment-friendly nanocrystalline piezo layers from Rochelle salt (RS) is presented here. The electrophoretic deposition process includes the formation of nanocrystals by precipitation of Rochelle salt/water solutions in ethanol (anti-solvent method) under the influence of a high electric field. A nanoporous anodic aluminum oxide membrane is used to separate the electrochemical cell into two chambers. The composition of the RS:H2O:EtOH mixture and the spatial separation of the process of precipitation from electrophoretic deposition allow control of the nanocrystal size and the uniformity of the layer. The reaction kinetics, the morphology, and the piezo response to the resulting layers are all investigated. The best samples were obtained at RS:H2O:EtOH ratio 1:22.5:37.5. Under these conditions, the nanocrystals are preferentially oriented on the aluminum substrate and form a dense and homogeneous layer. Although the obtained structure is polycrystalline, the resulting piezo effect is 1120 pC/N, which is comparable to inorganic monocrystals and piezoceramics. This allows the use of electrophoretically deposited polycrystalline piezo layers in applications such as energy harvesting.

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Section: Introductionmentioning

confidence: 99%