Moisture-insensitive,self-powered paper-based flexible electronics

摘要

The fabrication of multifunctional electronic devices on ubiquitous paper substrates is gaining considerable attention due to their low cost,environmental friendliness,light weight,and flexibility.Unfortunately,the development of paper-based electronics is subject to significant challenges,such as rapid degradation with moisture,battery dependence,and limited compatibility with existing mass production technologies.This work describes omniphobic,self-powered paper-based electronics (R~F-SPEs),completely wireless paper-based electronic devices insensitive to moisture,liquid stains,and dust.R~F-SPEs can be rapidly fabricated through the sequential spray-deposition of alkylated organosilanes,conductive nanoparticles,polytetrafluoroethylene (strong electron affinity),and ethyl cellulose (weak electron affinity) over the surface of cellulose paper.R~F-SPEs are lightweight,inexpensive to print (<$0.25 per device),and capable of generating power densities up to 300 μW/cm~2.Additionally,R~F-SPEs are flexible and exhibit excellent stability upon folding (0.3 mm radius of curvature).The simple printing process and relative low cost of R~F-SPEs enable the large-scale production of selfpowered paper-based electronics towards the ubiquitous integration of human-machine interfaces.