Piezoresistive Sensors: Full 3D Printing of Stretchable Piezoresistive Sensor with Hierarchical Porosity and Multimodulus Architecture (Adv. Funct. Mater. 11/2019)

In article number 1807569, Zhengchun Peng and co-workers fabricate a stretchable piezoresistive sensor by 3D-printing of a multilayered sensing element of a hierarchically porous structure on a pair of 3D-printed double helix interdigital electrodes on an elastomer substrate. The three layers are composed of the same polymer matrix but with a different modulus. The sensor demonstrates high sensitivity, large measurement range, limited cross-correlation, stable stretch resistance, and excellent durability.