Journal of Sensor Science and Technology (센서학회지)

The Korean Sensors Society (한국센서학회)
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Fabrication of an Inkjet-printed Plastic Force Sensor Using PEDOT:PSS

PEDOT:PSS를 이용한 잉크젯 프린팅 방식 플라스틱 힘 센서 개발

  • Lee, Wanghoon (Realistic Media Research Center, Gumi Electronics and Information Technology Research Institute) ;
  • Son, Sun-Young (Realistic Media Research Center, Gumi Electronics and Information Technology Research Institute) ;
  • Koo, Jungsik (Realistic Media Research Center, Gumi Electronics and Information Technology Research Institute) ;
  • Yeom, Se-Hyuk (Realistic Media Research Center, Gumi Electronics and Information Technology Research Institute)
  • 이왕훈 (구미전자정보기술원 실감미디어연구센터) ;
  • 손선영 (구미전자정보기술원 실감미디어연구센터) ;
  • 구정식 (구미전자정보기술원 실감미디어연구센터) ;
  • 염세혁 (구미전자정보기술원 실감미디어연구센터)
  • Received : 2019.11.14
  • Accepted : 2019.11.25
  • Published : 2019.11.30
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Abstract

This paper presents an inkjet-printed plastic force sensor using PEDOT:PSS. Using a piezoelectric-type inkjet printer, the force sensor was manufactured by printing PEDOT:PSS ink onto a polyimide (PI) substrate film. Applying a vertical force of 0 to 100 N to the force sensor on the PI substrate with a thickness of 64 mm, the resistance of the force sensor increased in proportion to the input force by the length deformation of the PI substrates and the sensor pattern. As a result, the fabricated sensor has a characteristic of 0.001% /N with a linearity of 99.38%. In addition, as the thickness of the PI substrate film increased, the sensitivity of the sensor increased linearly. The fabricated force sensor is expected to be applied to industrial sites and healthcare fields.

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References

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