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Please use this identifier to cite or link to this item: https://hdl.handle.net/2445/103228
Copper (II) oxide nanowires for p-type conductometric NH3 sensing
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Copper (II) oxide (CuO) is a metal oxide suitable for developing solid state gas sensors. Nevertheless, a detailed insight into the chemical-to-electrical transduction mechanisms between gas molecules and this metal oxide is still limited. Here, individual CuO nanowires were evaluated as ammonia (NH3) and hydrogen sulphide (H2S) sensors, validating the p-type character of this semiconductor. The working principle behind their performance was qualitatively modeled and it was concluded that adsorbed oxygen at the surface plays a key role necessary to explain the experimental data. Compared to their counterparts of SnO2 nanowires, an appreciable sensitivity enhancement to NH3 for concentrations below 100 ppm was demonstrated.
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SHAO, Feng, et al. Copper (II) oxide nanowires for p-type conductometric NH3 sensing. Applied Surface Science. 2014. Vol. 311, num. 177-181. ISSN 0169-4332. [consulted: 17 of October of 2026]. Available at: https://hdl.handle.net/2445/103228