Multifunctional Coverage Towards Textile-based Wearable Electronics

The flexible and wearable electronics shows significant potential in healthcare diagnosis,human-machine interactions,smart house,etc.Various devices have been developed,like multifunctional transistors,diodes,sensors,supercapacitors triboelectric nanogenerators,etc.,and advanced integration modules.As indispensable components of wearable devices,electronic textiles(e-textile)inherit with the unique porous structure of textile and present not only the outstanding wearable features of being flexible/stretchable,comfortable,breathable,sewable,comfortable and thermal,but distinguishable electronic performances.However,this characteristic structure will block the conductivity of the e-textile and make it vulnerable to external reagents.Besides,as the electroactive materials are generally of chemistry inertia,the interface between the textile and those materials are fragile.The pragmatic application of etextiles is severely impeded by those challenges.Here,we fabricated a textile sensor with multi-functional coverage of hierarchical structure.simultaneous high performance,mechanical robustness under harsh abrasion or washing,environment stability in both air and water/wet condition,and demonstrated its application in the fields of health monitoring,human-machine interaction,and robot-learning.The main works are as follows.(1)With textile asymmetrically coated by carbon nanotubes(CNT),the as prepared textile sensor performs a high sensitivity and a real-time,reliable and fast monitoring of human finger bending,which shows significant potential in gesture recognition and its application in human-machine interface.(2)Polypyrrole(PPy)was introduced to the CNT textile,which endows the textile sensor with mechanical robustness and high performance.It's capable of pulse monitoring and its sensor array is of good resolution of stress distribution,which presents a practical potential in personal healthcare and human-machine interaction.(3)PDA were introduced to the CNT/PPy composite to anchor the low-surfaceenergy chemical component.The achieved textile sensor presents simultaneous superlyophobicity,outstanding mechanical robustness and high sensitivity.Besides,it can be effectively conducted to monitor human motions,realize intuitive humanmachine interactions and robot-learning with sweat/water exposure,showing significant potentials in practical wearable e-textiles for continuous,long-term and reliable human behavior monitoring.