Ultra-Low Power Smart Electronic Nose System Based on Three-Dimensional Tin-Oxide Nanotube Arrays

Jiaqi Chen, Zhuo Chen, Farid Boussaid, Daquan Zhang, Xiaofang Pan, Huijuan Zhao, Amine Bermak, Chi Ying Tsui, Xinran Wang, Zhiyong Fan

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13 Citations (Scopus)

Abstract

In this work, we present a high performance smart electronic nose (E-nose) system consisting of multiplexed tin dioxide (SnO2) nanotube sensor array, read-out circuit, wireless data transmission unit, mobile phone receiver and data processing application (App). Using the proposed nanotube sensor device structure in conjunction with multiple electrode materials, high sensitivity gas detection and discrimination have been achieved at room temperature, enabling a 1,000 times reduction of sensor's power consumption as compared to a conventional device using thin film SnO2. Reported experimental results demonstrate that the developed E-nose can identify indoor target gases using a simple vector matching gas recognition algorithm. In addition, the fabricated E-nose has achieved state-of-art sensitivity for H2 detection and benzene detection at room temperature with metal oxide sensors. Such a smart E-nose system can address the imperative needs for distributed environmental monitoring in smart homes, smart buildings and smart cities.

Original languageEnglish
JournalACS Nano
DOIs
Publication statusAccepted/In press - 29 Mar 2018

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ASJC Scopus subject areas

  • Materials Science(all)
  • Engineering(all)
  • Physics and Astronomy(all)

Cite this

Chen, J., Chen, Z., Boussaid, F., Zhang, D., Pan, X., Zhao, H., Bermak, A., Tsui, C. Y., Wang, X., & Fan, Z. (Accepted/In press). Ultra-Low Power Smart Electronic Nose System Based on Three-Dimensional Tin-Oxide Nanotube Arrays. ACS Nano. https://doi.org/10.1021/acsnano.8b02371