TY - JOUR
T1 - Carbon nanotube thin films functionalized via loading of au nanoclusters for flexible gas sensors Devices
AU - Lin, Zheng Dong
AU - Young, Sheng Joue
AU - Chang, Shoou Jinn
N1 - Publisher Copyright:
© 2015 IEEE.
PY - 2016/1/1
Y1 - 2016/1/1
N2 - Carbon nanotubes (CNTs) have been demonstrated to be one of the most interesting materials for gas sensing. This paper applies a simple method for the direct transfer of high-density CNTs from a SiO2/Si substrate to a flexible substrate for carbon dioxide (CO2), ammonia (NH3), and isopropyl alcohol gas sensing at room temperature. The flexible gas sensor exhibited high sensitivities of 4.8%, 5.4%, and 5.2% at room temperature for ambient CO2, NH3, and isopropyl alcohol gas concentrations of 800 ppm, respectively. In addition, the gas response of the CNT-based chemiresistor is attributed to p-type conductivity in the Au-modified semiconducting CNTs. Very good repeatability of the sensor response to gas concentration is demonstrated, representing a major step toward the low-cost large-scale production of this class of device.
AB - Carbon nanotubes (CNTs) have been demonstrated to be one of the most interesting materials for gas sensing. This paper applies a simple method for the direct transfer of high-density CNTs from a SiO2/Si substrate to a flexible substrate for carbon dioxide (CO2), ammonia (NH3), and isopropyl alcohol gas sensing at room temperature. The flexible gas sensor exhibited high sensitivities of 4.8%, 5.4%, and 5.2% at room temperature for ambient CO2, NH3, and isopropyl alcohol gas concentrations of 800 ppm, respectively. In addition, the gas response of the CNT-based chemiresistor is attributed to p-type conductivity in the Au-modified semiconducting CNTs. Very good repeatability of the sensor response to gas concentration is demonstrated, representing a major step toward the low-cost large-scale production of this class of device.
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U2 - 10.1109/TED.2015.2504105
DO - 10.1109/TED.2015.2504105
M3 - Article
AN - SCOPUS:84959472892
SN - 0018-9383
VL - 63
SP - 476
EP - 480
JO - IEEE Transactions on Electron Devices
JF - IEEE Transactions on Electron Devices
IS - 1
M1 - 7350240
ER -