Localized Surface Plasmon Enhanced Laser Reduction of Graphene Oxide for Wearable Strain Sensor

Loading...
Thumbnail Image
File version

Accepted Manuscript (AM)

Author(s)
Wan, Z
Wang, S
Haylock, B
Wu, Z
Nguyen, TK
Phan, HP
Sang, R
Nguyen, NT
Thiel, D
Koulakov, S
Trinchi, A
Gao, Y
Lobino, M
Li, Q
Primary Supervisor
Other Supervisors
Editor(s)
Date
2021
Size
File type(s)
Location
License
Abstract

Laser reduced graphene has been increasingly attracting broad attention owing to its unique properties and potential applications in energy conversion and storage, flexible electronics, optoelectronics, and nanocomposites. In this study, graphene sheets decorated with Au nanoparticles are fabricated in situ using milliwatt femtosecond laser reduction. The findings reveal an enhancement in both the reduction of graphene oxide sheets and the nucleation and growth of the Au nanoparticles during the in situ laser treatment. Three stages of reactions are considered, namely, (i) the spontaneous redox reaction between HAuCl4 and graphene oxide, (ii) the laser‐induced decomposition of HAuCl4 and reduction of graphene oxide, and (iii) the localized surface plasmon resonance enhanced photoreduction in the presence of Au particles. Moreover, the Au nanoparticles form densely and evenly distributed square‐lattice‐like microcrack networks that ensure a linear resistance change over the tested strain range. This microcrack network architecture enables the development of flexible graphene/Au strain sensors with gauge factors up to 52.5, and linear behaviour up to 25.4% strain. This strain sensor is demonstrated to effectively monitor human motions. The findings leverage the resistive properties of graphene/metal nanoparticle composites with fundamental mechanisms, laying a critical step toward highly functional, low‐cost, flexible, and wearable graphene‐based electronics.

Journal Title

Advanced Materials Technologies

Conference Title
Book Title
Edition
Volume
Issue
Thesis Type
Degree Program
School
Publisher link
Patent number
Funder(s)
Grant identifier(s)
Rights Statement
Rights Statement

© 2021 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. This is the peer reviewed version of the following article: Localized Surface Plasmon Enhanced Laser Reduction of Graphene Oxide for Wearable Strain Sensor, Advanced Materials Technologies, 2021, which has been published in final form at https://doi.org/10.1002/admt.202001191. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving (http://olabout.wiley.com/WileyCDA/Section/id-828039.html)

Item Access Status
Note

This publication has been entered in Griffith Research Online as an advanced online version.

Access the data
Related item(s)
Subject

Nanotechnology

Inorganic materials (incl. nanomaterials)

Nanomaterials

Chemical sciences

Engineering

Physical sciences

Persistent link to this record
Citation

Wan, Z; Wang, S; Haylock, B; Wu, Z; Nguyen, TK; Phan, HP; Sang, R; Nguyen, NT; Thiel, D; Koulakov, S; Trinchi, A; Gao, Y; Lobino, M; Li, Q, Localized Surface Plasmon Enhanced Laser Reduction of Graphene Oxide for Wearable Strain Sensor, Advanced Materials Technologies, 2021

Collections