Michigan State University

Md Iqbal Hossain

Marcos Dantus

Gary J Blanchard

The disclosure relates to piezoelectric apparatus containing ionic liquids. The piezoelectric apparatus includes a chamber defining an internal volume containing an ionic liquid therein. The ionic liquid can generate a voltage or current upon application of force to the chamber or cell, thus exhibiting a piezoelectric effect. The ionic liquid also can deform upon application of a voltage to the ionic liquid, thus exhibiting a converse piezoelectric effect. The piezoelectric apparatus further includes first and second electrodes in contact with the ionic liquid at first and second locations, such as at opposing locations in the chamber with the ionic liquid positioned between the electrodes. The piezoelectric apparatus, depending on whether it is configured to exhibit a piezoelectric effect or a converse piezoelectric effect, can form or otherwise be a component of various energy or sensing devices, such as an energy harvester, force sensor, piezo-pneumatic device or actuator, optical sensor, etc.

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Lafayette, IN, United States of America

Md Iqbal Hossain