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ZnO Nanowire-Reduced Graphene Oxide Hybrid Based Portable NH3 Gas Sensing Electron Device

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Date

2015-12-01

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Abstract

A ZnO nanowire-reduced graphene oxide (ZnO-rGO) based portable ammonia (NH3) gas sensing electron device working at room temperature has been demonstrated for the first time. The sensor is developed on a microelectrode of micro-electromechanical systems and supported by peripheral circuits and a hosting computer, which enables the real-time detection of NH3 at room temperature. In contrast to the traditional sensors based on pure graphene or ZnO nanowires alone, the ZnO-rGO based gas sensing electron device can detect low-concentration (1 ppm) NH3 with higher sensitivity (∼ 7.2%). Besides, this sensor exhibits satisfying properties at sensing NH3 with the concentration as low as 500 ppb at room temperature.

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Keywords

ammonia, Gas sensing electron device, reduced graphene oxide, ZnO nanowire

Citation

URI

https://dspace-test.anu.edu.au/handle/1885/733723706

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DevOps Pure Testing

Source

IEEE Electron Device Letters

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Article

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DOI

10.1109/LED.2015.2496177

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