Journal of Sensor Science and Technology (센서학회지)

The Korean Sensors Society (한국센서학회)
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3-dimensional nanostructured ZnO gas sensor

3차원 ZnO 나노구조체 가스센서

  • Received : 2010.05.27
  • Accepted : 2010.09.01
  • Published : 2010.09.30
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Abstract

Due to the high surface-to-volume ratio, the 3-dimensional(3D) nanostructures of metal oxides are regarded as the best candidate materials for the chemical gas sensors. Here we have synthesised flower-like 3D zinc oxide nanostructures through a simple hydrothermal route. Specific surface area of the 3D zinc oxide nanostructures synthesised in different pH values from 9.0 to 12.0 were evaluated by using a BET analyzer and the results were compared with that of a zinc oxide thin film fabricated by rf sputtering. Using interdigitated electrodes, superior CO gas sensing properties of the 3D zinc oxide nanostructures on the ZnO thin film to those of the ZnO thin film were demonstrated.

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References

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