Skip to main content
. 2021 Dec 22;7(52):eabl8313. doi: 10.1126/sciadv.abl8313

Fig. 1. The mechanism for multifunctional sensing and layout of the e-skin prototype.

Fig. 1.

(A) Schematic of the flexible PMF with a cross-sectional view. (B) Schematics of the pressure-sensitive pressure sensing unit (P-unit) with microprotrusions and (C) the pressure-insensitive temperature sensing unit (T-unit) without microprotrusions. (D) Schematic of the sensing pixel constructed by combining the P-unit and T-unit with pink points denoting the protrusions. (E to G) Exploded view layout and optical images of the flexible e-skin prototype. (H and I) SEM images of the P/T-unit. (J and K) Maximum principal strain profiles in the metal layer of the P/T-unit. (L) Maximum principal strain in the metal layer as a function of applied pressure. (M) Temperature profiles of the P/T-unit with the magnified views of the P-unit (top) and the T-unit (bottom) in (N). PDMS, polydimethylsiloxane substrate.