Premium
Large‐Area Ultrathin Graphene Films by Single‐Step Marangoni Self‐Assembly for Highly Sensitive Strain Sensing Application
Author(s) -
Li Xinming,
Yang Tingting,
Yang Yao,
Zhu Jia,
Li Li,
Alam Fakhr E.,
Li Xiao,
Wang Kunlin,
Cheng Huanyu,
Lin ChengTe,
Fang Ying,
Zhu Hongwei
Publication year - 2016
Publication title -
advanced functional materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 6.069
H-Index - 322
eISSN - 1616-3028
pISSN - 1616-301X
DOI - 10.1002/adfm.201504717
Subject(s) - graphene , materials science , gauge factor , marangoni effect , nanotechnology , fabrication , strain gauge , electronic skin , sensitivity (control systems) , strain (injury) , wearable computer , optoelectronics , deformation (meteorology) , composite material , electronic engineering , computer science , medicine , alternative medicine , physics , engineering , pathology , quantum mechanics , surface tension , embedded system
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.