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 |
URI: | http://hdl.handle.net/2445/103228 |
Related resource: | https://doi.org/10.1016/j.apsusc.2014.05.038 |
ISSN: | 0169-4332 |
Appears in Collections: | Articles publicats en revistes (Enginyeria Electrònica i Biomèdica) |
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