Fig. 7: Performance and reliability evaluation of printed SiC-based humidity sensors. | Communications Engineering

Fig. 7: Performance and reliability evaluation of printed SiC-based humidity sensors.

From: Flexible screen-printed SiC-based humidity sensors

Fig. 7

a Response of 20, 30, 40, and 50 wt.% SiC humidity sensors cured at 300 ∘C for 180 minutes. Performance of the 40 wt.% SiC sensors: (b) adsorption/desorption plot showing a hysteresis of 6.5% at 60% RH, (c) response curve with polynomial fitting, (d) plot determining adsorption/desorption time constants via a drop test, (e) high-speed cycling of the SiC humidity sensor between 30–70% RH, (f) long-term cycling between 10–90% RH over a 3.5 h period, (g) detection of minute variations in %RH using the 40 wt.% printed SiC humidity sensor, (h) long-term cycling between 10–90% RH in 10% RH increments, and (i) temperature coefficient of resistance measured at different temperatures.

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