Electromechanical properties of PZT/P(VDF-TrFE) composite ink printed on a flexible organic substrate
Siponkoski, Tuomo; Nelo, Mikko; Palosaari, Jaakko; Peräntie, Jani; Sobocinski, Maciej; Juuti, Jari; Jantunen, Heli (2015-10-01)
T. Siponkoski, M. Nelo, J. Palosaari, J. Peräntie, M. Sobocinski, J. Juuti, H. Jantunen, Electromechanical properties of PZT/P(VDF-TrFE) composite ink printed on a flexible organic substrate, Composites Part B: Engineering, Volume 80, 2015, Pages 217-222, ISSN 1359-8368, http://dx.doi.org/10.1016/j.compositesb.2015.05.018.
© 2015. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/
The fabrication and electromechanical properties of composite inks consisting of 30–70 vol.% of piezoceramic PZT powder and piezoelectric co-polymer P(VDF-TrFE) are presented. Samples were stencil-printed on a commercial PET film and printable silver ink was used for the electrodes thus allowing a maximum process temperature of 130 °C. The relative permittivity at 1 kHz varied between 33 and 69 depending on poling and composite composition. The highest remanent polarization, up to 4.8 μC/cm², with 34 MV/m electric field and piezoelectric coefficient d₃₁ up to 17 pm/V, was obtained with a 50 vol.% PZT loading level. The mechanical and electrical results indicate that the developed composite ink enables fully printable and flexible sensor applications with an increased level of integration.
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