High Performance KNN-Based Single Crystal Thick Film for Ultrasound Application
Source abstract
Abstract
Using a novel lapping technology, the achievement of approximately 28 μm (K0.45Na0.55)0.96Li0.04NbO3 (abbreviated as KNLN) single crystal thick film with orientation has been realized. This kind of thick film exhibited excellent electrical performance: a superior piezoelectric constant (~ 490 pm/V) and an outstanding electromechanical coupling coefficient (kt ~ 0.55). Based on the obtained KNLN single crystal thick film, a tiny side-looking 82 MHz ultrasound transducer with a bandwidth of 57.3% at − 6 dB has been successfully fabricated. Most importantly, 80 MHz intravascular ultrasound and photoacoustic images of the healthy rabbit aorta have been presented. All these promising results indicate that KNN-based single crystal thick film is a good environmental protection candidate for high frequency (~ 80 MHz) ultrasound applications.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Acoustic Wave Resonator Technologies · Ferroelectric and Piezoelectric Materials · Photoacoustic and Ultrasonic Imaging
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (25)
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