Fig. 3: Mechanical and electrical performance of electronic hydrogels.
From: Self-healable stretchable printed electronic cryogels for in-vivo plant monitoring
a Stress-strain curves for an air-dried gel and a cyrogel (0–300%). b Stress-strain curves (kPa) for cryogels with varying molecular weights and c PVA:H2O compositions. d. Electrical resistance ratio for line-shaped PEDOT:PSS traces in an air-dried gel (printed lines (5 × 0.2 cm2)) and in a cryogel, as well as a cryogel with serpentine PEDOT:PSS traces. e Electrical resistance ratio R/R0 of an electronic cryogel for 100 cycles of 10% strain. f Photograph of a printed cryogel-based capacitor (Scale bar is 5 mm). g Photograph of a printed capacitor stretched while performing cyclic voltammetry h Cyclic voltammetry cycles within an applied voltage window range from 0 to 1 V for a printed capacitor under various strain conditons measured at a scan rate of 50 mV s−1. i Galvanostatic charge/discharge curves of capacitor cryogels at varying current densities (1 µA, 10 µA, 100 µA) (the current density for charging is fixed at 100 µA) within an applied voltage range from 0 to 1 V.
