[9p-C214-1~18] 12.4 Organic light-emitting devices, organic transistors, and flexible devices

4:45 PM - 5:00 PM JST(7:45 AM - 8:00 AM UTC)Presentation by Applicant for JSAP Young Scientists Presentation Award

[9p-C214-11] An All-Polyurethane Nanomesh Triboelectric Sensor for Swallowing and Voice Detection

〇(M2)Takuo Tachibana¹, Yusuke Ebihara¹, Yi Kao², Ezumi Manabu¹, Li Yan², Kento Yamagishi¹, Tomoyuki Yokota¹, Ren Tian-Ling², Takao Someya¹ (1.Tokyo Univ., 2.Tsinghua Univ.)

Keywords:

triboelectric nanogenerator,electrospinning,wearable electronics

In this study, we propose a triboelectric throat sensor based on an all-polyurethane nanomesh. The porous structure maintains breathability and conformal contact with the skin, while heat-press bonding stabilizes the electrode resistance. The device detected laryngeal motion at several hertz during swallowing and vibrations in the 100–300 Hz range during voice production. Furthermore, phonation signals were successfully obtained even under changes in neck posture. This device is expected to be useful for low-burden monitoring of laryngeal function.