Please use this identifier to cite or link to this item: https://doi.org/10.1016/j.snb.2005.09.008
Title: Nano-crystalline Cu-doped ZnO thin film gas sensor for CO
Authors: Gong, H. 
Hu, J.Q.
Wang, J.H.
Ong, C.H.
Zhu, F.R.
Keywords: CO
Gas sensor
Nano-crystalline Cu-doped ZnO
Issue Date: 23-May-2006
Source: Gong, H., Hu, J.Q., Wang, J.H., Ong, C.H., Zhu, F.R. (2006-05-23). Nano-crystalline Cu-doped ZnO thin film gas sensor for CO. Sensors and Actuators, B: Chemical 115 (1) : 247-251. ScholarBank@NUS Repository. https://doi.org/10.1016/j.snb.2005.09.008
Abstract: A Cu-doped ZnO (CZO) film was prepared on a glass substrate by co-sputtering using ZnO and Cu targets. The CZO film possessed a columnar structure consisting of small crystals with an average grain size of around 5 nm. The CO-sensing properties of the CZO film were tested at operating temperatures of 150, 300, 350 and 400 °C. It was found that CZO-based sensor exhibited the highest sensitivity to CO at 350 °C. An obvious change in resistance of the CZO film was also observed when the sensor was exposed to 6 ppm CO at 150 °C. The sensing mechanism of the nano-structured CZO sensor is discussed. © 2005 Elsevier B.V. All rights reserved.
Source Title: Sensors and Actuators, B: Chemical
URI: http://scholarbank.nus.edu.sg/handle/10635/64957
ISSN: 09254005
DOI: 10.1016/j.snb.2005.09.008
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