Print Email Facebook Twitter Printable elastic conductors by in situ formation of silver nanoparticles from silver flakes Title Printable elastic conductors by in situ formation of silver nanoparticles from silver flakes Author Matsuhisa, N. Inoue, D. Zalar, P. Jin, H. Matsuba, Y. Itoh, A. Yokota, T. Hashizume, D. Someya, T. Publication year 2017 Abstract Printable elastic conductors promise large-area stretchable sensor/actuator networks for healthcare, wearables and robotics. Elastomers with metal nanoparticles are one of the best approaches to achieve high performance, but large-area utilization is limited by difficulties in their processability. Here we report a printable elastic conductor containing Ag nanoparticles that are formed in situ, solely by mixing micrometre-sized Ag flakes, fluorine rubbers, and surfactant. Our printable elastic composites exhibit conductivity higher than 4,000 S cm-1 (highest value: 6,168 S cm-1) at 0% strain, and 935 S cm-1 when stretched up to 400%. Ag nanoparticle formation is influenced by the surfactant, heating processes, and elastomer molecular weight, resulting in a drastic improvement of conductivity. Fully printed sensor networks for stretchable robots are demonstrated, sensing pressure and temperature accurately, even when stretched over 250%. Subject 2015 Nano TechnologyHOL - HolstTS - Technical SciencesElectronicsIndustrial InnovationElastomersMetal nanoparticlesSensor networksSurface active agentsArea utilizationElastic compositesFluorine rubberHeating processIn-situ formationsPressureTemperatureSilver nanoparticles To reference this document use: http://resolver.tudelft.nl/uuid:bb00df79-8a55-436c-8230-add84b6b7f90 DOI https://doi.org/10.1038/nmat4904 TNO identifier 777397 ISSN 1476-1122 Source Nature Materials, 16 (8), 834-840 Document type article Files To receive the publication files, please send an e-mail request to TNO Library.