کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5361336 1503653 2014 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Copper (II) oxide nanowires for p-type conductometric NH3 sensing
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
Copper (II) oxide nanowires for p-type conductometric NH3 sensing
چکیده انگلیسی
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.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Surface Science - Volume 311, 30 August 2014, Pages 177-181
نویسندگان
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