Nanogenerator-based dual-functional and self-powered thin patch loudspeaker or microphone for flexible electronics.

ABSTRACT: Ferroelectret nanogenerators were recently introduced as a promising alternative technology for harvesting kinetic energy. Here we report the device's intrinsic properties that allow for the bidirectional conversion of energy between electrical and mechanical domains; thus extending its potential use in wearable electronics beyond the power generation realm. This electromechanical coupling, combined with their flexibility and thin film-like form, bestows dual-functional transducing capabilities to the device that are used in this work to demonstrate its use as a thin, wearable and self-powered loudspeaker or microphone patch. To determine the device's performance and applicability, sound pressure level is characterized in both space and frequency domains for three different configurations.

SUBMITTER: Li W 

PROVIDER: S-EPMC5440853 | biostudies-literature | 2017 May

REPOSITORIES: biostudies-literature