The fabrication of a fully printed, lead-free, polymer piezoelectric transducer is presented and the characterization of its structural, dielectric, and ferroelectric properties at different processing stages is demonstrated. The performance of poly(vinylidene fluoride-trifluoroethylene) transducers with resonance frequency analyses, acoustic power measurements, and pulse-echo experiments is evaluated. Notably, for the first time for a fully printed transducer, an optimal performance in the medical ultrasound range (<15 MHz) is demonstrated with acoustic power >1 W cm(-2), which is promising for applications in epidermal and wearable electronics. Overall, the findings provide a strong foundation for future research in the area of flexible ultrasound transducers.
Fully Printed Flexible Ultrasound Transducer for Medical Applications / Keller, Kirill; Leitner, Christoph; Baumgartner, Christian; Benini, Luca; Greco, Francesco. - In: ADVANCED MATERIALS TECHNOLOGIES. - ISSN 2365-709X. - ELETTRONICO. - 8:18(2023), pp. 2300577.1-2300577.9. [10.1002/admt.202300577]
Fully Printed Flexible Ultrasound Transducer for Medical Applications
Benini, Luca;
2023
Abstract
The fabrication of a fully printed, lead-free, polymer piezoelectric transducer is presented and the characterization of its structural, dielectric, and ferroelectric properties at different processing stages is demonstrated. The performance of poly(vinylidene fluoride-trifluoroethylene) transducers with resonance frequency analyses, acoustic power measurements, and pulse-echo experiments is evaluated. Notably, for the first time for a fully printed transducer, an optimal performance in the medical ultrasound range (<15 MHz) is demonstrated with acoustic power >1 W cm(-2), which is promising for applications in epidermal and wearable electronics. Overall, the findings provide a strong foundation for future research in the area of flexible ultrasound transducers.File | Dimensione | Formato | |
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Fully Printed Flexible Ultrasound Transducer for Medical Applications.pdf
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