Journal of the Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회논문지)

The Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회)
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Highly Sensitive Gas Sensors Based on Electrospun Indium Oxide Nanofibers for Indoor Toxic CO and HCHO Gases

전기방사법으로 제작한 In2O3 나노섬유 기반 고감도 실내독성 CO 및 HCHO 가스센서

  • Im, Dong-Ha (Electronic Convergence Materials Division, Korea Institute of Ceramic Engineering & Technology) ;
  • Hwang, Sung-Hwan (Electronic Convergence Materials Division, Korea Institute of Ceramic Engineering & Technology) ;
  • Kwon, Se-Hun (School of Material Science and Engineering, Pusan University) ;
  • Jung, Hyunsung (Electronic Convergence Materials Division, Korea Institute of Ceramic Engineering & Technology)
  • 임동하 (한국세라믹기술원 나노융합소재센터) ;
  • 황성환 (한국세라믹기술원 나노융합소재센터) ;
  • 권세훈 (부산대학교 재료공학과) ;
  • 정현성 (한국세라믹기술원 나노융합소재센터)
  • Received : 2016.08.22
  • Accepted : 2016.11.05
  • Published : 2016.12.01
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Abstract

In this work, one dimension $In_2O_3$ nanostructures as detecting materials for indoor toxic gases were synthesized by an electrospinning process. The morphology of electrospun $In_2O_3$ nanofibers was controlled by electrolyte composition, applied voltage and working distance between a nozzle and a substrate. The synthesized $In_2O_3$ nanofibers-based paste with/without carbon black additives was prepared for the integration on a sensor device. The integration of $In_2O_3$ sensing materials was conducted by a hand-printing of the paste into the interdigit Au electrodes patterned on Si wafer. Gas sensing properties on CO and HCHO gases were characterized at $300^{\circ}C$. The evaluated sensing properties such as sensitivity, response time and recovery time were improved in $In_2O_3$ nanofiber pastes with carbon black, compared to the paste without carbon black.

Keywords

References

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