A Reconfigurable Piezo-Ionotropic Polymer Membrane for Multi-Resonance Acoustic Sensing
발표자
Deng Limin (KAIST)
연구책임자
이정용 (KAIST)
영우빈 (KAIST)
공동저자
Deng Limin (KAIST), 이정용 (KAIST), 영우빈 (KAIST)
초록
내용
Soft polymer-based acoustic sensors offer mechanical compliance and sustainability, yet their sensing performance is often constrained by limited resonance bandwidths. In this study, a reconfigurable piezo-ionotropic polymer membrane for multi-resonance acoustic sensing is presented. The membrane comprises a flexible polymer matrix containing mobile ionic species, enabling coupled electromechanical and ion-dynamic transduction. Under acoustic excitation, mechanical deformation induces dipolar polarization and dynamic ion redistribution, resulting in frequency-dependent capacitance modulation. Multiple resonance modes can be activated by tuning membrane geometry and ionic content. This work demonstrates a functional polymer platform for broadband acoustic sensing based on piezo-ionotropic transduction.