Ultraflexible and transparent electroluminescent skin for real-time and super-resolution imaging of pressure distribution

Byeongmoon Lee, Ji-Young Oh (), Hyeon Cho, Chul Woong Joo, Hyungsoo Yoon, Sujin Jeong, Eunho Oh, Junghwan Byun, Hanul Kim, Seunghwan Lee, Jiseok Seo, Chan Woo Park, Sukyung Choi, Nae-Man Park, Seung-Youl Kang, Chi-Sun Hwang, Seong-Deok Ahn, Jeong-Ik Lee and Yongtaek Hong ()
Additional contact information
Byeongmoon Lee: Inter-University Semiconductor Research Center (ISRC), Seoul National University
Ji-Young Oh: Electronics & Telecommunications Research Institute (ETRI)
Hyeon Cho: Inter-University Semiconductor Research Center (ISRC), Seoul National University
Chul Woong Joo: Electronics & Telecommunications Research Institute (ETRI)
Hyungsoo Yoon: Inter-University Semiconductor Research Center (ISRC), Seoul National University
Sujin Jeong: Inter-University Semiconductor Research Center (ISRC), Seoul National University
Eunho Oh: Inter-University Semiconductor Research Center (ISRC), Seoul National University
Junghwan Byun: Seoul National University
Hanul Kim: Inter-University Semiconductor Research Center (ISRC), Seoul National University
Seunghwan Lee: Inter-University Semiconductor Research Center (ISRC), Seoul National University
Jiseok Seo: Inter-University Semiconductor Research Center (ISRC), Seoul National University
Chan Woo Park: Electronics & Telecommunications Research Institute (ETRI)
Sukyung Choi: Electronics & Telecommunications Research Institute (ETRI)
Nae-Man Park: Electronics & Telecommunications Research Institute (ETRI)
Seung-Youl Kang: Electronics & Telecommunications Research Institute (ETRI)
Chi-Sun Hwang: Electronics & Telecommunications Research Institute (ETRI)
Seong-Deok Ahn: Electronics & Telecommunications Research Institute (ETRI)
Jeong-Ik Lee: Electronics & Telecommunications Research Institute (ETRI)
Yongtaek Hong: Inter-University Semiconductor Research Center (ISRC), Seoul National University

Nature Communications, 2020, vol. 11, issue 1, 1-11

Abstract: Abstract The ability to image pressure distribution over complex three-dimensional surfaces would significantly augment the potential applications of electronic skin. However, existing methods show poor spatial and temporal fidelity due to their limited pixel density, low sensitivity, or low conformability. Here, we report an ultraflexible and transparent electroluminescent skin that autonomously displays super-resolution images of pressure distribution in real time. The device comprises a transparent pressure-sensing film with a solution-processable cellulose/nanowire nanohybrid network featuring ultrahigh sensor sensitivity (>5000 kPa−1) and a fast response time ( 1000 dpi) pressure imaging without the need for pixel structures. Our approach provides a new framework for visualizing accurate stimulus distribution with potential applications in skin prosthesis, robotics, and advanced human-machine interfaces.

Date: 2020
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DOI: 10.1038/s41467-020-14485-9

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