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"강유전특성"

Practical Guide to the Characterization of Piezoelectric Properties
Woo-seok Kang, Geon-ju Lee, Wook Jo
J Electr Electron Mater 2021;34(5):301-313.   Published online September 1, 2021
DOI: https://doi.org/10.4313/JKEM.2021.34.5.5
Theoretical background for the meaning of various piezoelectric properties can be easily found in a number of textbooks and academic papers. In contrast, how they are actually measured and characterized are rarely described, though this information would be the most important especially to the researchers who just started working on the field. It follows that this report was intended to provide a practical guidance for measuring basic but essential properties of ferroelectric-based piezoelectric materials. The discussion begins with how to measurement dielectric properties such as dielectric permittivity and loss (dissipation factor), followed by piezoelectric properties such as piezoelectric constants, electromechanical coupling factor, and quality factor as well as ferroelectric features, i.e., electric field dependent polarization hysteresis. Though our discussion here is limited to the techniques that are already well-standardized, it is expected to make a seed to be developed into more challenging and creative ones.
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