Siponkoski, T. K., Jantunen, H. M., & Juuti, J. A. (2022). Enhanced piezoelectric performance of ceramic-polymer composite cantilevers with thin metal substrates. Applied Physics Letters, 120(5), 052903. https://doi.org/10.1063/5.0075853
Enhanced piezoelectric performance of ceramic-polymer composite cantilevers with thin metal substrates
|Author:||Siponkoski, Tuomo K.1; Jantunen, Heli M.1; Juuti, Jari A.1|
1Microelectronics Research Unit, P.O. Box 4500, 90014, University of Oulu, Oulu, Finland
|Online Access:||PDF Full Text (PDF, 0.6 MB)|
|Persistent link:|| http://urn.fi/urn:nbn:fi-fe2022091358846
American Institute of Physics,
|Publish Date:|| 2022-09-13
In this work the electromechanical properties of lead zirconate titanate-poly(vinylidenefluoride-trifluoroethylene) ceramic-polymer composite on thin brass and steel substrates were investigated. Samples were stencil printed on metal foils and cured at 120 °C. The effective transverse piezoelectric coefficient (d31eff) was calculated by utilizing the converse piezoelectric effect and measuring the displacement of a cantilever sample’s tip in an electric field. Interestingly, the results showed improved piezoelectric properties with the stiffer steel substrate samples. The highest d31eff achieved was about -22 pm/V, which was 29 % higher than in samples printed on brass foil (-17 pm/V). Both are substantially higher compared to the coefficients reported with similar ceramic-polymer composites on polymer substrates. The improvement is suggested to originate from the prevention of buckling effects and more effective bending deformation, while the structure remained flexible. Due to the high effective values of d₃₁ and g₃₁, the developed material and cantilever structures are feasible for both sensor and energy harvesting applications.
Applied physics letters
|Type of Publication:||
A1 Journal article – refereed
|Field of Science:||
114 Physical sciences
213 Electronic, automation and communications engineering, electronics
216 Materials engineering
The authors gratefully acknowledge funding from Academy of Finland (Decision Nos. 285219 and 318203). This work was also supported by the Academy of Finland Printed Intelligence Infrastructure, PII (Grant No. 320020) and Business Finland 7543/31/2018. T.S. acknowledges the Tauno Tönning, Walter Ahlström, Emil Aaltonen, KAUTE, Riitta and Jorma J. Takanen, and Ulla Tuominen foundations as well as Infotech Oulu Doctoral Program for supporting this study.
|Academy of Finland Grant Number:||
285219 (Academy of Finland Funding decision)
318203 (Academy of Finland Funding decision)
This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. This article appeared in Siponkoski, T. K., Jantunen, H. M., & Juuti, J. A. (2022). Enhanced piezoelectric performance of ceramic-polymer composite cantilevers with thin metal substrates. Applied Physics Letters, 120(5), 052903 and may be found at https://doi.org/10.1063/5.0075853.