Highly Sensitive and Multimodal All‐Carbon Skin Sensors Capable of Simultaneously Detecting Tactile and Biological Stimuli

A highly sensitive, wearable, and multimodal skin sensor that uses hierarchically engineered elastic carbon nanotube microyarns is described. Piezocapacitive all-carbon skin sensors simultaneously detect heterogeneous external subtle stimuli, including mechanical deformation, touch, temperature or humidity gradients, and even biological variables with different dipole moments, which enables in situ human monitoring as well as recognition of robot-human-environmental interface. As a service to our authors and readers, this journal provides supporting information supplied by the authors. Such materials are peer reviewed and may be re-organized for online delivery, but are not copy-edited or typeset. Technical support issues arising from supporting information (other than missing files) should be addressed to the authors. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.