Graphene oxide as high-performance dielectric materials for capacitive pressure sensors

Graphene oxide (GO) foam exhibits both excellent elastic property and high relative dielectric permittivity, which is a novel building block for future wearable electronic devices. Herein we present an ultra-sensitive GO-based capacitive pressure sensor with graphene as electrodes by an efficient, l...

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Published in:Carbon (New York) 2017-04, Vol.114, p.209-216
Main Authors: Wan, Shu, Bi, Hengchang, Zhou, Yilong, Xie, Xiao, Su, Shi, Yin, Kuibo, Sun, Litao
Format: Article
Language:English
Subjects:
Automation
Dielectric properties
Elastic properties
Electronic devices
Graphene
Human-computer interface
Industrial robots
Manufacturing engineering
Permittivity
Pressure distribution
Pressure sensors
Recording
Response time
Robotics
Robustness
Stress concentration
User interfaces
Wearable technology
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cited_by cdi_FETCH-LOGICAL-c400t-e6bcb7584f5cbac369dd872e5e39f4c23e2b305e12f52b4d4b24c45fba443a63
cites cdi_FETCH-LOGICAL-c400t-e6bcb7584f5cbac369dd872e5e39f4c23e2b305e12f52b4d4b24c45fba443a63
container_end_page 216
container_issue
container_start_page 209
container_title Carbon (New York)
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creator Wan, Shu
Bi, Hengchang
Zhou, Yilong
Xie, Xiao
Su, Shi
Yin, Kuibo
Sun, Litao
description Graphene oxide (GO) foam exhibits both excellent elastic property and high relative dielectric permittivity, which is a novel building block for future wearable electronic devices. Herein we present an ultra-sensitive GO-based capacitive pressure sensor with graphene as electrodes by an efficient, low-cost fabrication strategy over large-area integration as well as patterning for recording spatial pressure distribution. The GO-based sensor can detect a subtle pressure of ∼0.24Pa with a fast response time (∼100 m) and a high sensitivity (∼0.8 kPa−1). The superior sensing properties combining with good flexibility and robustness reveal a great application potential in various fields, such as health monitoring, flexible human-computer user interfaces, and robotics, which also give a new insight for all-carbon electronics. [Display omitted]
doi_str_mv 10.1016/j.carbon.2016.12.023
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source ScienceDirect Freedom Collection 2022-2024
subjects Automation
Dielectric properties
Elastic properties
Electronic devices
Graphene
Human-computer interface
Industrial robots
Manufacturing engineering
Permittivity
Pressure distribution
Pressure sensors
Recording
Response time
Robotics
Robustness
Stress concentration
User interfaces
Wearable technology
title Graphene oxide as high-performance dielectric materials for capacitive pressure sensors
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