High performance micro CO sensors based on ZnO-SnO2 composite nanofibers with anti-humidity characteristics
Article
Article Title | High performance micro CO sensors based on ZnO-SnO2 composite nanofibers with anti-humidity characteristics |
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ERA Journal ID | 958 |
Article Category | Article |
Authors | Yue, Xue-Jun (Author), Hong, Tian-Sheng (Author), Xiang, Wei (Author), Cai, Kun (Author) and Xu, Xing (Author) |
Journal Title | Chinese Physics Letters |
Journal Citation | 29 (12), pp. 1-4 |
Number of Pages | 4 |
Year | 2012 |
Place of Publication | United Kingdom |
ISSN | 0256-307X |
1741-3540 | |
Digital Object Identifier (DOI) | https://doi.org/10.1088/0256-307X/29/12/120702 |
Web Address (URL) | https://iopscience.iop.org/article/10.1088/0256-307X/29/12/120702/meta |
Abstract | ZnO-SnO2 composite nanofibers are synthesized via an electrospinning method and characterized by x-ray diffraction, scanning electron microscopy, and transmission electron microscopy. Micro sensors are fabricated by spinning the nanofibers on Si substrates with Pt signal and heater electrodes. The sensors with small areas (600 μm × 200 μm) can detect CO down to 1ppm at 360°C. The corresponding sensitivity, response time, and recovery time are 3.2, 6s, and 11s, respectively. Importantly, the sensors can operate at high humidity conditions. The sensitivity only decreases to 2.3 when the sensors are exposed to 1 ppm CO at 95% relative humidity. These excellent sensing properties are due to combining the benefits of one-dimensional nanomaterials and the ZnO-SnO2 grain boundary in the nanofibers. |
Keywords | instrumentation and measurement; condensed matter; structural, mechanical and thermal; nanoscale science; low-D systems |
ANZSRC Field of Research 2020 | 400999. Electronics, sensors and digital hardware not elsewhere classified |
401807. Nanomaterials | |
400608. Wireless communication systems and technologies (incl. microwave and millimetrewave) | |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | Faculty of Engineering and Surveying |
South China Agricultural University, China | |
Department of Electrical, Electronic and Computer Engineering | |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q1y0q/high-performance-micro-co-sensors-based-on-zno-sno2-composite-nanofibers-with-anti-humidity-characteristics
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