Journal
SENSORS AND ACTUATORS B-CHEMICAL
Volume 160, Issue 1, Pages 713-719Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.snb.2011.08.053
Keywords
Au-loaded In2O3 nanofibers; Ethanol; Micro gas sensor; Low power consumption
Funding
- National Natural Science Foundation of China [51102109]
- Innovation Research Team of Jilin University [201004003]
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Au-loaded In2O3 nanofibers, with different Au concentrations from 0.1 wt% to 0.4 wt%, were successfully prepared by an electrospinning method and characterized via scanning electron microscopy (SEM) and X-ray diffraction (XRD). The results showed that the fibers with diameters ranged from 80 to 100 nm were made up of cubic In2O3. The nanofibers were deposited on a silicon substrate with micro hot-plate and signal electrodes to construct a micro gas sensor. The ethanol sensing properties of the sensors based on Au-loaded In2O3 nanofibers with different Au concentrations were investigated. It is found that the 0.2 wt% Au-loaded In2O3 based sensors possessed the characterization of high response, fast response/recovery and low power consumption. (C) 2011 Elsevier B.V. All rights reserved.
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