화학공학소재연구정보센터
학회 한국고분자학회
학술대회 2016년 봄 (04/06 ~ 04/08, 대전컨벤션센터)
권호 41권 1호
발표분야 고분자가공/복합재료
제목 Linearly and highly pressure-sensitive electronic skin based on a bio-inspired hierarchical structural array
초록 Most of pressure sensors in previous studies did not exhibit linear sensitivity over a sufficiently large pressure range. Considering that a nonlinear relationship between sensor output and applied pressure requires additional signal processing, the narrow linear-sensitive range limits practical use of the previous pressure sensor devices. In this study, we report the use of a novel hierarchical elastomeric structure to fabricate a piezo-resistive pressure sensor that was shown both to display a linear output response and to be highly sensitive (8.5 kPa-1) in gentle pressure regime. In addition, by employing monolayer graphene as the conductive layer, the sensor can be placed onto a target position precisely when applied to a health-monitoring device. We believe that our study will contribute effectually toward the development of advanced pressure sensors that have various applications including wearable bio-monitoring devices and touch screens for flexible and transparent displays.
저자 배근열1, 박상우1, 김대건1, 이기원1, 김도환2, 정윤영1, 조길원1
소속 1포항공과대, 2숭실대
키워드 linear sensitivity; hierarchical structure; graphene; piezo-resistive; electronic skin
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