TY - JOUR
T1 - Ultra-Low-Power Smart Electronic Nose System Based on Three-Dimensional Tin Oxide Nanotube Arrays
AU - Chen, Jiaqi
AU - Chen, Zhuo
AU - Boussaid, Farid
AU - Zhang, Daquan
AU - Pan, Xiaofang
AU - Zhao, Huijuan
AU - Bermak, Amine
AU - Tsui, Chi Ying
AU - Wang, Xinran
AU - Fan, Zhiyong
PY - 2018/6/26
Y1 - 2018/6/26
N2 - In this work, we present a high-performance smart electronic nose (E-nose) system consisting of a multiplexed tin oxide (SnO2) nanotube sensor array, read-out circuit, wireless data transmission unit, mobile phone receiver, and data processing application (App). Using the designed nanotube sensor device structure in conjunction with multiple electrode materials, high-sensitivity gas detection and discrimination have been achieved at room temperature, enabling a 1000 times reduction of the sensor's power consumption as compared to a conventional device using thin film SnO2. The 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-the-art sensitivity for H2 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.
AB - In this work, we present a high-performance smart electronic nose (E-nose) system consisting of a multiplexed tin oxide (SnO2) nanotube sensor array, read-out circuit, wireless data transmission unit, mobile phone receiver, and data processing application (App). Using the designed nanotube sensor device structure in conjunction with multiple electrode materials, high-sensitivity gas detection and discrimination have been achieved at room temperature, enabling a 1000 times reduction of the sensor's power consumption as compared to a conventional device using thin film SnO2. The 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-the-art sensitivity for H2 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.
KW - distributed sensor system
KW - electronic nose
KW - gas recognition
KW - low-power gas sensor
KW - tin oxide nanotube
UR - http://www.scopus.com/inward/record.url?scp=85047640185&partnerID=8YFLogxK
U2 - 10.1021/acsnano.8b02371
DO - 10.1021/acsnano.8b02371
M3 - Article
C2 - 29792677
AN - SCOPUS:85047640185
VL - 12
SP - 6079
EP - 6088
JO - ACS Nano
JF - ACS Nano
SN - 1936-0851
IS - 6
ER -