Capacitor-based self-powered sound sensor for enhanced electrical output

Giyoung Son; Dongwon Seo; Jihoon Chung

doi:10.1117/12.3010251

9 May 2024 Capacitor-based self-powered sound sensor for enhanced electrical output

Giyoung Son, Dongwon Seo, Jihoon Chung

Proceedings Volume 12948, Soft Mechatronics and Wearable Systems; 129480K (2024) https://doi.org/10.1117/12.3010251
Event: SPIE Smart Structures + Nondestructive Evaluation, 2024, Long Beach, California, United States

Abstract

Triboelectric nanogenerator (TENG) is promising technology for harvesting sound input, but increasing their electrical output remains a challenge. The capacitor-based sound TENG (CS-TENG) is proposed as a capacitor-based sound triboelectric generator, which can enhance the electrical output of the device by accumulating electrical charges on its capacitor electrodes. The CS-TENG has high mechanical durability by preventing contact between the vibrating diaphragm and electrode and producing electrical output through electrostatic induction. The CS-TENG exhibits a peak open-circuit voltage of 14.24 V and a peak closed-circuit current of 0.87 μA under a 90 dB sound pressure at 200 Hz. The CS-TENG is a powerful generator that can generate significant electrical energy and function as a real-time detection sensor for various sounds.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Giyoung Son, Dongwon Seo, and Jihoon Chung "Capacitor-based self-powered sound sensor for enhanced electrical output", Proc. SPIE 12948, Soft Mechatronics and Wearable Systems, 129480K (9 May 2024); https://doi.org/10.1117/12.3010251

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