An ultrathin conformable vibration-responsive electronic skin for quantitative vocal recognition

Siyoung Lee, Junsoo Kim, Inyeol Yun, Geun Yeol Bae, Daegun Kim, Sangsik Park, Il-Min Yi, Wonkyu Moon, Yoonyoung Chung () and Kilwon Cho ()
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Siyoung Lee: Pohang University of Science and Technology
Junsoo Kim: Pohang University of Science and Technology
Inyeol Yun: Pohang University of Science and Technology
Geun Yeol Bae: Pohang University of Science and Technology
Daegun Kim: Pohang University of Science and Technology
Sangsik Park: Pohang University of Science and Technology
Il-Min Yi: Pohang University of Science and Technology
Wonkyu Moon: Pohang University of Science and Technology
Yoonyoung Chung: Pohang University of Science and Technology
Kilwon Cho: Pohang University of Science and Technology

Nature Communications, 2019, vol. 10, issue 1, 1-11

Abstract: Abstract Flexible and skin-attachable vibration sensors have been studied for use as wearable voice-recognition electronics. However, the development of vibration sensors to recognize the human voice accurately with a flat frequency response, a high sensitivity, and a flexible/conformable form factor has proved a major challenge. Here, we present an ultrathin, conformable, and vibration-responsive electronic skin that detects skin acceleration, which is highly and linearly correlated with voice pressure. This device consists of a crosslinked ultrathin polymer film and a hole-patterned diaphragm structure, and senses voices quantitatively with an outstanding sensitivity of 5.5 V Pa−1 over the voice frequency range. Moreover, this ultrathin device (

Date: 2019
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DOI: 10.1038/s41467-019-10465-w

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