Printable elastic conductors by in situ formation of silver nanoparticles from silver flakes

Nature Materials
Naoji MatsuhisaTakao Someya

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%.

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Citations

May 4, 2018·Chemical Society Reviews·Dongrui WangZijian Zheng
Aug 4, 2018·Advanced Materials·Chunfeng WangSheng Xu
Nov 27, 2018·Chemical Society Reviews·Hyunwoo YukXuanhe Zhao
Apr 19, 2019·Advanced Materials·Chengfeng PanCarmel Majidi
May 11, 2019·Chemical Society Reviews·Naoji MatsuhisaTakao Someya
May 24, 2019·Chemical Society Reviews·Yi-Zhou ZhangWei Huang
Jun 18, 2019·Advanced Materials·Kyoseung SimCunjiang Yu
Aug 9, 2017·Nature Biotechnology·Irene Jarchum
Jun 28, 2019·Advanced Materials·Yinji MaXue Feng
Jul 19, 2019·Nanoscale·Nicholas X WilliamsAaron D Franklin
May 21, 2019·Advanced Materials·Binghao Wang, Antonio Facchetti
Aug 3, 2019·Advanced Materials·Philip C Y Chow, Takao Someya
Aug 14, 2019·Advanced Materials·Dong Chan KimDae-Hyeong Kim
Dec 2, 2017·Advanced Healthcare Materials·Shanshan YaoYong Zhu
Dec 24, 2019·Philosophical Transactions. Series A, Mathematical, Physical, and Engineering Sciences·Mahesh Soni, Ravinder Dahiya
Dec 13, 2019·Advanced Materials·Seokmin LeeJinhan Cho
Mar 5, 2020·Advanced Materials·Chengyi XuAlon A Gorodetsky
Aug 31, 2019·Advanced Materials·Shu GongWenlong Cheng
Jan 9, 2020·Research : a Science Partner Journal·Kirthika Senthil KumarHongliang Ren
Jul 17, 2020·Chemical Society Reviews·Yin FangBozhi Tian
Jul 15, 2020·Proceedings of the National Academy of Sciences of the United States of America·Yadong XuZheng Yan
Jul 12, 2018·Scientific Reports·Tomoki MatsudaAkio Hirose
Jun 11, 2019·Advanced Science·Jin Young Oh, Zhenan Bao
Jul 28, 2019·Advanced Materials·Zhaoguo XueYonggang Huang
Jan 31, 2020·Nature Communications·Youfeng Yue, Yasuo Norikane

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