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


A ZnO nanowire-reduced graphene oxide (ZnO-rGO) based moveable ammonia (NH3) gas sensing electron device working at room temperature has been demonstrated for the primary time. The sensor is developed on a microelectrode of micro-electromechanical systems and supported by peripheral circuits and a hosting pc, that enables the real-time detection of NH3 at room temperature. In contrast to the traditional sensors primarily 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 ( %). Besides, this sensor exhibits satisfying properties at sensing NH3 with the concentration as low as five hundred ppb at area temperature.

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