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Open Access Nano Idea

Sensing and identification of carbon monoxide using carbon films fabricated by methane arc discharge decomposition technique

Elnaz Akbari1, Zolkafle Buntat2*, Aria Enzevaee3, Mahsa Khoshkhooy Yazdi4, Mahdi Bahadoran5 and Ali Nikoukar6

Author Affiliations

1 Centre for Artificial Intelligence and Robotics (CAIRO), Universiti Teknologi Malaysia, Kuala Lumpur 54100, Malaysia

2 Institute of High Voltage & High Current, Faculty of Electrical Engineering, Universiti Teknologi Malaysia, Johor Bahru 81310, Malaysia

3 Faculty of Mechanical Engineering, Universiti Teknologi Malaysia, Johor Bahru 81310, Malaysia

4 Department of Chemistry, Faculty of Science, Universiti Teknologi Malaysia, Johor Bahru 81310, Malaysia

5 Institute of Advanced Photonics Science, Nanotechnology Research Alliance, Universiti Teknologi Malaysia, Johor Bahru 81310, Malaysia

6 Faculty of Computing, Universiti Teknologi Malaysia (UTM), Johor Bahru 81310, Malaysia

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Nanoscale Research Letters 2014, 9:402  doi:10.1186/1556-276X-9-402

Published: 19 August 2014

Abstract

Carbonaceous materials have recently received attention in electronic applications and measurement systems. In this work, we demonstrate the electrical behavior of carbon films fabricated by methane arc discharge decomposition technique. The current-voltage (I-V) characteristics of carbon films are investigated in the presence and absence of gas. The experiment reveals that the current passing through the carbon films increases when the concentration of CO2 gas is increased from 200 to 800 ppm. This phenomenon which is a result of conductance changes can be employed in sensing applications such as gas sensors.

Keywords:
Carbonaceous materials; Gas sensing; Methane arc discharge decomposition