Ultrasensitive Strain Sensor Produced by Direct Patterning of Liquid Crystals of Graphene Oxide on a Flexible Substrate

被引：58

作者：

Coskun, M. Bulut ^{[1
,4
]}

Akbari, Abozar ^{[2
]}

Lai, Daniel T. H. ^{[3
]}

Neild, Adrian ^{[1
]}

Majumder, Mainak ^{[2
]}

Alan, Tuncay ^{[1
]}

机构：

[1] Monash Univ, Dept Mech & Aerosp Engn, Lab Micro Syst, Melbourne, Vic 3800, Australia

[2] Monash Univ, Dept Mech & Aerosp Engn, Nanoscale Sci & Engn Lab, Melbourne, Vic 3800, Australia

[3] Victoria Univ, Coll Engn & Sci, Melbourne, Vic 3011, Australia

[4] Univ Texas Dallas, Dept Mech Engn, Richardson, TX 75080 USA

来源：

ACS APPLIED MATERIALS & INTERFACES | 2016年 / 8卷 / 34期

关键词：

strain gauge; rGO; direct GO patterning; shear alignment; high sensitivity; flexible substrate; FILMS; SENSITIVITY;

D O I：

10.1021/acsami.6b06290

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Ultrasensitive flexible strain sensors were developed through the combination of shear alignment of a high concentration graphene oxide (GO) dispersion with fast and precise patterning of multiple rectangular features on a flexible substrate. Resistive changes in the reduced GO films were investigated under various uniaxial strain cycles ranging from 0.025 to 2%, controlled with a motorized nanopositioning stage. The devices uniquely combine a very small detection limit (0.025%) and a high gauge factor with a rapid fabrication process conducive to batch production.

引用

页码：22501 / 22505

页数：5

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