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A Flexible and Highly Pressure‐Sensitive Graphene–Polyurethane Sponge Based on Fractured Microstructure Design
Author(s) -
Yao HongBin,
Ge Jin,
Wang ChangFeng,
Wang Xu,
Hu Wei,
Zheng ZhiJun,
Ni Yong,
Yu ShuHong
Publication year - 2013
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201303041
Subject(s) - materials science , nanosheet , graphene , microstructure , polyurethane , piezoresistive effect , pressure sensor , composite material , sponge , nanostructure , nanotechnology , mechanical engineering , engineering , botany , biology
A fractured microstructure design: A new type of piezoresistive sensor with ultra‐high‐pressure sensitivity (0.26 kPa −1 ) in low pressure range (<2 kPa) and minimum detectable pressure of 9 Pa has been fabricated using a fractured microstructure design in a graphene‐nanosheet‐wrapped polyurethane (PU) sponge. This low‐cost and easily scalable graphene‐wrapped PU sponge pressure sensor has potential application in high‐spatial‐resolution, artificial skin without complex nanostructure design.