High Bending-Mode Sensitivity of Printed Piezoelectric Poly(vinylidenefluoride- co-trifluoroethylene) Sensors
| Autor: | Martijn Schouten, Satu Rajala, Gijs Krijnen, Sampo Tuukkanen |
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| Přispěvatelé: | Tampere University, Faculty of Biomedical Sciences and Engineering, Robotics and Mechatronics |
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
Materials science
Orders of magnitude (temperature) Piezoelectric sensor General Chemical Engineering 213 Electronic automation and communications engineering electronics 010401 analytical chemistry 02 engineering and technology General Chemistry Substrate (electronics) 021001 nanoscience & nanotechnology 01 natural sciences Piezoelectricity 0104 chemical sciences Active layer lcsh:Chemistry chemistry.chemical_compound lcsh:QD1-999 chemistry Electric field Electrode Polyethylene terephthalate Composite material 0210 nano-technology |
| Zdroj: | ACS Omega, 3(7), 8067-8073. American Chemical Society ACS Omega, Vol 3, Iss 7, Pp 8067-8073 (2018) |
| Popis: | 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. publishedVersion |
| Databáze: | OpenAIRE |
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