• 文献标题:   Graphene-based printable conductors for cyclable strain sensors on elastomeric substrates
  • 文献类型:   Article
  • 作  者:   LYNCH PJ, OGILVIE SP, LARGE MJ, GRAF AA, O MARA MA, TAYLOR J, SALVAGE JP, DALTON AB
  • 作者关键词:  
  • 出版物名称:   CARBON
  • ISSN:   0008-6223 EI 1873-3891
  • 通讯作者地址:   Univ Sussex
  • 被引频次:   0
  • DOI:   10.1016/j.carbon.2020.06.078
  • 出版年:   2020

▎ 摘  要

Printable stretchable devices, which can be used in a wide range of environments, are required for a range of flexible or stretchable electronics applications. Here we present an ink containing liquid exfoliated graphene and natural rubber, which can be printed onto a variety of elastomeric substrates and recover conductance after multiple strains of up to 15%. In addition, the printed composite acts as a strain sensor with a gauge factor of around 7. The robust character of these composites allows for operation at temperatures up to 150 degrees C. The combination of the effectiveness of the device, along with comparable performance at elevated temperatures while being relatively cheap makes this ideal for integration with automotive components. For applications that require superior conductivity, silver nanowires can be added. The enhanced conductivity composite cannot withstand higher temperatures due to the breakdown of the nanowires. However, at room temperature the material shows similar recovery of conductivity after cycling leading to a highly conductive, room temperature, printable, stretchable composite. (C) 2020 Elsevier Ltd. All rights reserved.