Fabrication of Porous Silicon Based Humidity Sensing Elements on Paper

<div>A photograph showing (a) a spray-coated pSi layer on flexographically printed silver electrodes and (b) the process of R2R spray-coating of pSi layer and online IR drying using the custom-build hybrid printer.</div>

Journal of Sensors

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Figure 3

Figure 3: Fabrication of Porous Silicon Based Humidity Sensing Elements on Paper 