Characterization of Printed Humidity Sensor Based on Nanoparticle Copper Oxide

In this paper, flexible and low cost humidity sensor based on nanoparticle CuO is presented. The sensing layer, dimensions of 21 × 17 mm 2 , is printed using the 3D printer (nano3D print A2200). It is deposited over 22 fingers of the interdigitated capacitor. The electrodes of the interdigitated cap...

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Bibliographic Details
Main Authors: Zlebic, C., Zivanov, Lj, Blaz, N., Kisic, M., Lukovic, M.
Format: Conference Proceeding
Language:English
Subjects:
additive technology
Capacitors
Electrodes
Humidity
Humidity measurement
humidity sensor
Ink
nanoparticle CuO ink
nanoparticle silver ink
sensitivity of humidity sensor
Silver
Temperature measurement
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Summary:In this paper, flexible and low cost humidity sensor based on nanoparticle CuO is presented. The sensing layer, dimensions of 21 × 17 mm 2 , is printed using the 3D printer (nano3D print A2200). It is deposited over 22 fingers of the interdigitated capacitor. The electrodes of the interdigitated capacitor were printed with nanosilver ink. The width and the spacing between the fingers were 200 pm and 600 pm, respectively. The electrodes of the interdigitated capacitor are deposited on the PET substrate. The capacitance of the fabricated sensor with humidity change in the range from 30 % to 90 % at two temperatures (40 and 60 °C) was measured at a frequency of 100 Hz. Also, the hysteresis and the response/recovery behaviour and repeatability characteristics were evaluated. The response/recovery times were 36 s and 51 s. It is obtained satisfactory repeatability.
ISSN:2473-2117
DOI:10.1109/DDECS50862.2020.9095702