Articles | Volume 9, issue 1
https://doi.org/10.5194/jsss-9-15-2020
https://doi.org/10.5194/jsss-9-15-2020
Regular research article
 | 
23 Jan 2020
Regular research article |  | 23 Jan 2020

High-temperature stable piezoelectric transducers using epitaxially grown electrodes

Hendrik Wulfmeier, René Feder, Li Zhao, and Holger Fritze

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Latest update: 14 Jun 2024
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Short summary
Epitaxially grown electrodes for high-temperature stable piezoelectric transducers are prepared by pulsed laser depostion. To adjust the stoichiometry in the films, oxygen partial pressure, target composition and deposition temperature are varied. Langasite films with enhanced conductivity are deposited, serving as electrodes for nearly monolithic piezoelectric resonators. These resonators show strong admittance maxima for their 1st, 3rd and 5th harmonics and are not affected by spurious modes.