Please use this identifier to cite or link to this item: http://hdl.handle.net/2445/103228
Title: Copper (II) oxide nanowires for p-type conductometric NH3 sensing
Author: Shao, F.
Hernández Ramírez, Francisco
Prades García, Juan Daniel
Fàbrega i Claveria, Ma. Carme
Andreu Arbella, Teresa
Morante i Lleonart, Joan Ramon
Keywords: Nanotecnologia
Detectors de gasos
Detectors químics
Nanotechnology
Gas detectors
Chemical detectors
Issue Date: 31-Aug-2014
Publisher: Elsevier B.V.
Abstract: 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.
Note: Versió postprint del document publicat a: https://doi.org/10.1016/j.apsusc.2014.05.038
It is part of: Applied Surface Science, 2014, vol. 311, p. 177-181
Related resource: https://doi.org/10.1016/j.apsusc.2014.05.038
URI: http://hdl.handle.net/2445/103228
ISSN: 0169-4332
Appears in Collections:Articles publicats en revistes (Electrònica)

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