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CuO Nanocube Gas Sensor for Ethanol Detection
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- Authors
- Park Hyung Ju, Choi Nak-Jin, Kang Hyuntae, Lee Hyung-Kun, Moon Seung Eon, Jung Moon Youn, Park Kang Hyun, Lee Dae-Sik
- Issue Date
- 2014-06
- Citation
- Sensor Letters, v.12, no.6-7, pp.1156-1159
- ISSN
- 1546-198X
- Publisher
- American Scientific Publishers (ASP)
- Language
- English
- Type
- Journal Article
- Abstract
- We fabricated and characterized a reproducible gas sensor based on monodisperse CuO nanocubes. The shape and structure of the nanocubes were controlled through a modified polyol process. The nanocubes were characterized using a scanning electron microscope (SEM) and X-ray diffraction (XRD), and the gas sensors were prepared through a screen-printing process applied to interdigitated electrodes (IDEs). The nanocubes were then sintered at 600 °C for 2 h in air. The C2H5OH gas-sensing characteristics of the CuO nanocubes were examined at operating temperatures of 300, and 350 °C respectively, and showed good sensitivity (S, 1.51 with 300 ppm at 300 °C), logarithmic properties in the range of 5-300 ppm C2H5OH gas concentration, and excellent reproducibility (coefficient of variation 0.03 with 80 ppm at 300 °C).
- KSP Keywords
- 2 H, Coefficient of Variation, Ethanol detection, Gas concentration, Gas-sensing characteristics, Interdigitated Electrode(IDE), Modified polyol process, Operating Temperature, Printing process, Sensor based, X-ray diffraction (xrd)