센서학회지 (Journal of Sensor Science and Technology)

  • 제30권4호
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  • Pages.255-260
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  • 2021
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  • 1225-5475(pISSN)
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  • 2093-7563(eISSN)
한국센서학회 (The Korean Sensors Society)
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Carbon Nanotube Film을 이용한 액체 전기화학 센서

Liquid electrochemical sensors using carbon nanotube film

  • 노재하 (한국해양대학교 전자소재공학과) ;
  • 안상수 (한국해양대학교 전자소재공학과) ;
  • 이창한 (한국해양대학교 전자소재공학과) ;
  • 이상태 (한국해양대학교 해양플랜트 운영학과) ;
  • 이문진 (선박해양플랜트연구소 해양안전환경연구본부) ;
  • 서동민 (선박해양플랜트연구소 해양안전환경연구본부) ;
  • 장지호 (한국해양대학교 전자소재공학과)
  • Noh, Jaeha (Major of Electronic Materials Engineering, Korea and Maritime Ocean University) ;
  • An, Sangsu (Major of Electronic Materials Engineering, Korea and Maritime Ocean University) ;
  • Lee, Changhan (Major of Electronic Materials Engineering, Korea and Maritime Ocean University) ;
  • Lee, Sangtae (Department of offshore plant management, Korea and Maritime Ocean University) ;
  • Lee, Moonjin (Maritime Safety and Environmental Research Division, KRISO) ;
  • Seo, Dongmin (Maritime Safety and Environmental Research Division, KRISO) ;
  • Chang, Jiho (Major of Electronic Materials Engineering, Korea and Maritime Ocean University)
  • 투고 : 2021.07.10
  • 심사 : 2021.07.27
  • 발행 : 2021.07.31
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초록

We studied electrochemical sensors using printed carbon nanotube (CNT) film on a polyethylene terephthalate (PET) substrate. Multiwalled CNT films were printed on a PET substrate to study its feasibility as hazardous and noxious substances (HNS) detection sensor. The printed CNT film (PCF) with a 50 ㎛ thickness exhibited a specific resistance of 230 ohm. To determine the optimum sensor structure, a resistance-type PCF sensor (R-type PCF sensor) and a conductive-type PCF sensor (C-type PCF sensor) were fabricated and compared using diluted NH3 droplets with various concentrations. The response magnitude, response time, sensitivity, linearity, and limit of detection (LOD) were compared, and it was concluded that the C-type PCF sensor exhibited superior performance. By applying a C-Type PCF sensor, we confirmed the detection performance of 12 types of floating HNS and the response of the sensor with selectivity according to the degree of polarity.

키워드

과제정보

이 논문은 2021년 해양수산부 재원으로 해양수산과학기술진흥원의 지원을 받아 수행된 연구(위험유해물질(HNS)사고 관리기술개발)이다. (D11502119H480000120)

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