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정훈의

Jeong, Hoon Eui
Multiscale Biomimetics and Manufacturing Lab.
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CNT 활성화 층 기반 자가 접착이 가능한 압력-비민감형 유연 스트레인 센서 개발

Alternative Title
Development of a Pressure-insensitive Flexible Self-attachable Strain Sensor with Bioinspired Adhesive and Active CNT Layers
Author(s)
김재일성민호황인솔선가현이상현강민수최건준장혜진박성진박채빈김소미이동혁정훈의
Issued Date
2021-05-12
URI
https://scholarworks.unist.ac.kr/handle/201301/77442
Citation
한국정밀공학회 2021년도 춘계학술대회
Abstract
Flexible tactile sensors are required to maintain conformal contact with target objects and to distinguish different tactile
stimuli such as strain and pressure to achieve high sensing performance. However, many existing tactile sensors do not
have the ability to distinguish strain from pressure. Moreover, because they lack intrinsic adhesion capability, they require
additional adhesive tapes for surface attachment. Herein, we present a self-attachable, pressure-insensitive strain sensor that
can firmly adhere to target objects and selectively perceive tensile strain with high sensitivity. The proposed strain sensor is
mainly composed of a bioinspired micropillar adhesive layer and a selectively coated active carbon nanotube (CNT) layer.
We show that the bioinspired adhesive layer enables strong self-attachment of the sensor to diverse planar and nonplanar
surfaces with a maximum adhesion strength of 257 kPa, while the thin film configuration of the patterned CNT layer
enables high strain sensitivity (gauge factor (GF) of 2.26) and pressure insensitivity
Publisher
한국정밀공학회

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