한국섬유공학회지 (Textile Science and Engineering)

  • 제53권1호
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  • Pages.7-14
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  • 2016
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  • 1225-1089(pISSN)
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  • 2288-6419(eISSN)
한국섬유공학회 (The Korean Fiber Society)
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Au 플라워가 성장된 하이브리드형 탄소 나노튜브 마이크로 섬유 기반 유연한 고민감성 압력 센서 연구

Highly Sensitive, Flexible Pressure Sensors Based on Carbon Nanotube Microfibers Hybridized with Au Flowers

  • 김소영 (숭실대학교 유기신소재.파이버공학과) ;
  • 김도환 (숭실대학교 유기신소재.파이버공학과)
  • Kim, So Young (Department of Organic Materials and Fiber Engineering, Soongsil University) ;
  • Kim, Do Hwan (Department of Organic Materials and Fiber Engineering, Soongsil University)
  • 투고 : 2015.12.18
  • 심사 : 2016.02.12
  • 발행 : 2016.02.29
⟨ 이전 논문 다음 논문 ⟩

초록

Pressure-sensitive electronic skin (e-skin) has gained importance in the fields of prosthetics, health monitoring, sensitive tactile information display, and robotics. In particular, many previous studies have reported flexible and highly sensitive pressure sensors. Among them, e-skin devices based on CNT microfibers show wearable and excellent multimodal (pressure, temperature, humidity, and presence of chemicals) sensing capabilities However, the low sensitivity of these devices at high pressures remains a critical issue. Here, we report on highly flexbile and sensitive e-skin devices prepared by carbon nanotube (CNT) microfibers hybridized with Au flowers, which were synthesized by electrochemical methods. First, we controlled the voltage and reaction time in order to optimize the surface morphology of the CNT microfibers. Next, we fabricated capacitive pressure sensors to elucidate the impact of Au flowers on the sensing capability of the CNT microfiber-based pressure sensors, especially in high pressure regimes. The sensors based on CNT microfibers with Au flowers showed fourfold higher sensitivity than did those without the Au flowers, due to the enhanced air traps between the Au flowers. Furthermore, this morphology of CNT microfibers with Au flowers demonstrated satisfactory repeatability and durability under high pressure.

키워드

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피인용 문헌

  1. Improved Mechanical and Electrical Properties of Carbon Nanotube Yarns by Wet Impregnation and Multi-ply Twisting vol.19, pp.12, 2018, https://doi.org/10.1007/s12221-018-8140-0