Journal of Sensor Science and Technology (센서학회지)

The Korean Sensors Society (한국센서학회)
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Fabrication of Flexible Temperature & Humidity Sensor Using Inkjet-printing Technology

잉크젯 프린팅 기술을 이용한 플렉서블 온·습도센서 개발

  • Kye, Ji Won (School of Bio Electrical Engineering, Andong National Unversity) ;
  • Han, Dong Cheul (Gumi Electronics and Information Technology Research Institute) ;
  • Shin, Han Jae (Gumi Electronics and Information Technology Research Institute) ;
  • Kim, HeonGon (Gumi Electronics and Information Technology Research Institute) ;
  • Lee, Wanghoon (Gumi Electronics and Information Technology Research Institute)
  • Received : 2015.03.20
  • Accepted : 2015.04.02
  • Published : 2015.03.31
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Abstract

This paper presents the inkjet-printed flexible temperature and humidity sensor(F-TH sensor) using PEDOT:PSS. The series, mesh and parallel type sensing element using PEDOT:PSS ink was printed on the overhead projector(OHP) film. The fabricated sensor of each structure has the temperature sensitivity of $140{\Omega}/^{\circ}C$, $29{\Omega}/^{\circ}C$ and $1.4{\Omega}/^{\circ}C$ with linearity, respectively. Also the fabricated sensor was not only possible to measure a temperature, but also to detect humidity. The humidity sensitivity of $400{\Omega}/%RH$, $3.4{\Omega}/%RH$ and $3{\Omega}/%RH$ with linearity, respectively. The fabricated F-TH sensor is expected for the various applications such as electronic devices, bio-healthcare, industrial field.

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References

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