초록문의 abstract@kcsnet.or.kr

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현재 가능한 작업은 아래와 같습니다.
  • 02월 19일 23시 이후 : 초록수정 불가능, 일정확인 및 검색만 가능

제119회 대한화학회 학술발표회, 총회 및 기기전시회 Highly Sensitive, Transparent, and Durable Pressure Sensors Based on Sea-Urchin Shaped Metal Nanoparticles

2017년 3월 21일 09시 41분 57초
KCS.O-2 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
목 10시 : 23분
한국다우케미칼 우수논문상 수상자 구두발표
저자 및
이동화, 이형진, 정영준, 안유미, 남건익, 이윤구*
DGIST 에너지시스템공학전공, Korea
Pressure sensors have been used for control and monitoring in various electronic applications including force-touching sensors on the display, smart sensors embedded into fabric, medical sensors for health monitoring, and electronic skin. The capacitive and piezoelectric pressure sensors have shown excellent touching sensitivity by employing microstructures. However, they still have several drawbacks such as complex device architecture, low optical transparency, high processing temperature, and restricted scalability because the fabrication of sophisticated microstructures largely depends on complicated and expensive lithographic patterning process. Recently, piezoresistive pressure sensors composed of conductive fillers and insulating elastomers have attracted considerable interest as potential alternatives to the capacitive and piezoelectric pressure sensors. However, most of the piezoresistive pressure sensors still have issues regarding low optical transparency and poor operational durability, which make them difficult for practical use. They are usually opaque because high concentration of non-transparent conductive fillers is required to obtain sufficient piezoresistive characteristics. Therefore, the challenge still remains to develop a novel conductive filler for practical piezoresistive pressure sensors with excellent touching sensitivity, optical transparency, and operational durability. In this talk, I will present a new piezoresistive pressure sensor based on sea-urchin shaped metal nanoparticles and insulating polyurethane elastomer. It showed excellent sensitivity (2.46 kPa−1), optical transparency (84.8% at 550 nm), and operational durability.