Highly Sensitive, Wearable, Durable Strain Sensors and Stretchable Conductors Using Graphene/Silicon Rubber Composites
Files
Date
2016
Authors
Shi, G.
Zhao, Z.
Pai, J.H.
Lee, I.
Zhang, L.
Stevenson, C.
Ishara, K.
Zhang, R.
Zhu, H.
Ma, J.
Editors
Advisors
Journal Title
Journal ISSN
Volume Title
Type:
Journal article
Citation
Advanced Functional Materials, 2016; 26(42):7614-7625
Statement of Responsibility
Conference Name
Abstract
<jats:p>Highly sensitive, wearable and durable strain sensors are vital to the development of health monitoring systems, smart robots and human machine interfaces. The recent sensor fabrication progress is respectable, but it is limited by complexity, low sensitivity and unideal service life. Herein a facile, cost‐effective and scalable method is presented for the development of high‐performance strain sensors and stretchable conductors based on a composite film consisting of graphene platelets (GnPs) and silicon rubber. Through calculation by the tunneling theory using experimental data, the composite film has demonstrated ideal linear and reproducible sensitivity to tensile strains, which is contributed by the superior piezoresistivity of GnPs having tunable gauge factors 27.7–164.5. The composite sensors fabricated in different days demonstrate pretty similar performance, enabling applications as a health‐monitoring device to detect various human motions from finger bending to pulse. They can be used as electronic skin, a vibration sensor and a human‐machine interface controller. Stretchable conductors are made by coating and encapsulating GnPs with polydimethyl siloxane to create another composite; this structure allows the conductor to be readily bent and stretched with sufficient mechanical robustness and cyclability.</jats:p>
School/Discipline
Dissertation Note
Provenance
Description
Access Status
Rights
Copyright 2016 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Access Condition Notes: Accepted manuscript available on open access