High Bending-Mode Sensitivity of Printed Piezoelectric Poly(vinylidenefluoride- co-trifluoroethylene) Sensors

Satu Rajala, Martijn Schouten, Gijs Krijnen, Sampo Tuukkanen*

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

3 Citations (Scopus)
97 Downloads (Pure)

Abstract

Printable piezoelectric sensors were fabricated on a flexible polyethylene terephthalate (PET) substrate. Solution-processed piezoelectric poly(vinylidenefluoride-co-trifluoroethylene) ink was used as an active layer. Evaporated silver on PET was used as the bottom electrode and the painted silver glue as the top electrode. The sensors were poled using a high dc electric field from 25 to 65 MV m-1, yielding piezoelectric normal direction sensitivities up to 25 pC N-1. Bending-mode sensitivities showed values up to 200 nC N-1, which is 4 orders of magnitude larger than the force sensitivity in the normal direction. The high bending-mode sensitivities suggest suitability for detecting small forces, such as single fiber bonds or cardiomyocyte cell-beating force.

Original languageEnglish
Pages (from-to)8067-8073
Number of pages7
JournalACS Omega
Volume3
Issue number7
DOIs
Publication statusPublished - 23 Jul 2018
Externally publishedYes

Fingerprint

Polyethylene Terephthalates
Silver
Polyethylene terephthalates
Electrodes
Glues
Sensors
Ink
Electric fields
Fibers
Substrates
trifluoroethene
Direction compound

Cite this

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High Bending-Mode Sensitivity of Printed Piezoelectric Poly(vinylidenefluoride- co-trifluoroethylene) Sensors. / Rajala, Satu; Schouten, Martijn; Krijnen, Gijs; Tuukkanen, Sampo.

In: ACS Omega, Vol. 3, No. 7, 23.07.2018, p. 8067-8073.

Research output: Contribution to journalArticleAcademicpeer-review

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