Directional dependence figure of merit analysis of piezoelectric materials

ABSTRACT

Efficiency of a piezo-electric transducer is defined by the relative electrical output induced in response to the mechanical stress it encounters. Thus an efficient device design demands an insightful figure of merit analysis of the piezoelectric material used for the sensor fabrication. In this article we have performed a directional dependence figure of merit analysis of some popular piezoelectric materials to determine the cut orientations along which optimal proficiency can be achieved. The materials chosen for the study are PZT-5H, PMN-PT, PZN-PT, PMN-PZT, SbSI, SBN, BT and BCZT such that a comparative perspective can be deduced.

Keywords:

• Piezoelectric; cut-orientation
• piezoelectric volt-constant
• figure of merit analysis

Funding

This work has been supported by the National Science Foundation under Grant No. 1002380 and by the Department of Defence under the Grant No. W911NF-12-1-0082.