sonochemical-assisted synthesis of copper oxide nanoparticles and its application as humidity sensor
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abstract
cupric oxide nanostructures were synthesized via a simple reaction between copper nitrate and sodium hydroxide using a sonochemical-assisted method. the synthesized cuo was then characterized using x-ray diffraction, scanning electron microscopy, transmission electron microscopy, fourier transform infrared, ultraviolet-visible and photoluminescence spectroscopy. our studies show that the cuo nanostructure can be used as a humidity sensor with a short response time (about 6 sec) and a long recovery time (up to 650 sec). variation of relative sensor impedance (defined as sensing) at relative humidity of 90% was measured to be about 80, which indicates a high sensing of our designed sensor.
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Journal title:
journal of nanostructuresPublisher: university of kashan
ISSN 2251-7871
volume 3
issue 4 2013
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