Large-Area Ultrathin Graphene Films by Single-Step Marangoni Self-Assembly for Highly Sensitive Strain Sensing Application

Xinming Li, Tingting Yang, Yao Yang, Jia Zhu, Li Li, Fakhr E. Alam, Xiao Li, Kunlin Wang, Huanyu Cheng, Cheng Te Lin, Ying Fang, Hongwei Zhu

Research output: Contribution to journalArticle

191 Scopus citations

Abstract

Promoted by the demand for wearable devices, graphene has been proved to be a promising material for potential applications in flexible and highly sensitive strain sensors. However, low sensitivity and complex processing of graphene retard the development toward the practical applications. Here, an environment-friendly and cost-effective method to fabricate large-area ultrathin graphene films is proposed for highly sensitive flexible strain sensor. The assembled graphene films are derived rapidly at the liquid/air interface by Marangoni effect and the area can be scaled up. These graphene-based strain sensors exhibit extremely high sensitivity with gauge factor of 1037 at 2% strain, which represents the highest value for graphene platelets at this small deformation so far. This simple fabrication for strain sensors with highly sensitive performance of strain sensor makes it a novel approach to applications in electronic skin, wearable sensors, and health monitoring platforms.

Original languageEnglish (US)
Pages (from-to)1322-1329
Number of pages8
JournalAdvanced Functional Materials
Volume26
Issue number9
DOIs
StatePublished - Mar 2 2016

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics

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    Li, X., Yang, T., Yang, Y., Zhu, J., Li, L., Alam, F. E., Li, X., Wang, K., Cheng, H., Lin, C. T., Fang, Y., & Zhu, H. (2016). Large-Area Ultrathin Graphene Films by Single-Step Marangoni Self-Assembly for Highly Sensitive Strain Sensing Application. Advanced Functional Materials, 26(9), 1322-1329. https://doi.org/10.1002/adfm.201504717