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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Characteristics and Preparation of CNT:ZnO Gas Sensors

CNT:ZnO 가스 센서의 제조와 특성 연구

  • Yoon, So-Jin (Department of Physics, Dong-Eui University) ;
  • Yu, Il (Department of Physics, Dong-Eui University)
  • 윤소진 (동의대학교 물리학과) ;
  • 유일 (동의대학교 물리학과)
  • Received : 2014.04.22
  • Accepted : 2014.05.29
  • Published : 2014.07.01
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Abstract

The effects of ZnO coating on the sensing properties of CNT:ZnO based gas sensors were studied for $H_2S$ gas. The nano ZnO sensing materials were grown by hydrothermal reaction method. CNT:ZnO was prepared by ball-mill method. The mole range of nano ZnO coating on CNT surface was from 0 to 10%. The CNT:ZnO gas sensors were fabricated by a screen printing method on alumina substrates. The structural and morphological properties of the CNT:ZnO sensing materials were investigated by XRD, EDS, SEM and TEM. The XRD patterns showed that CNT:ZnO powders with hexagonal structure were grown with (002) dominant peak. The diameter of CNT from TEM was about 28 nm.

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References

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