journal article·2023-09Open access

Fully Printed Flexible Ultrasound Transducer for Medical Applications

Kirill Keller, Christoph Leitner, Christian Baumgartner, Luca Benini, Francesco Greco

Advanced Materials Technologies· Volume 8· Issue 18

Abstract

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.
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Research context

OpenAlex topics: Advanced Sensor and Energy Harvesting Materials · Ultrasound Imaging and Elastography · Dielectric materials and actuators

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Institute of Solid State Physics NAWI Graz Graz University of Technology Petersgasse 16 Graz 8010 Austria

Integrated Systems Laboratory ETH Zurich Gloriastrasse 35 Zurich 8090 Switzerland

Institute of Health Care Engineering with European Testing Center of Medical Devices Graz University of Technology Stremayrgasse 16 Graz 8010 Austria

Department of Electrical Electronic and Information Engineering “Guglielmo Marconi” University of Bologna Via Zamboni 33 Bologna 40126 Italy

The Biorobotics Institute Sant'Anna School of Advanced Studies Viale R. Piaggio 34 Pontedera 56025 Italy

Department of Excellence in Robotics and AI Sant'Anna School of Advanced Studies P.zza Martiri della Libertà Pisa 56127 Italy

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