Flexible and wearable 3D graphene sensor with 141 KHz frequency signal response capability

R. Xu; H. Zhang; Y. Cai; J. Ruan; K. Qu; E. Liu; X. Ni; M. Lu; X. Dong

doi:10.1063/1.5001472

Flexible and wearable 3D graphene sensor with 141 KHz frequency signal response capability

R. Xu, H. Zhang, Y. Cai, J. Ruan, K. Qu, E. Liu, X. Ni, M. Lu, X. Dong

SCHOOL OF FLEXIBLE ELECTRONICS(FUTURE TECHNOLOGIES)|INSTITUTE OF ADVANCED MATERIALS(IAM)

Research output: Contribution to journal › Article › peer-review

18 Scopus citations

Abstract

We developed a flexible force sensor consisting of 3D graphene foam (GF) encapsulated in flexible polydimethylsiloxane (PDMS). Because the 3D GF/PDMS sensor is based on the transformation of an electronic band structure aroused by static mechanical strain or KHz vibration, it can detect frequency signals by both tuning fork tests and piezoelectric ceramic transducer tests, which showed a clear linear response from audio frequencies, including frequencies up to 141 KHz in the ultrasound range. Because of their excellent response with a wide bandwidth, the 3D GF/PDMS sensors are attractive for interactive wearable devices or artificial prosthetics capable of perceiving seismic waves, ultrasonic waves, shock waves, and transient pressures.

Original language	English
Article number	103501
Journal	Applied Physics Letters
Volume	111
Issue number	10
DOIs	https://doi.org/10.1063/1.5001472
State	Published - 4 Sep 2017

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abstract = "We developed a flexible force sensor consisting of 3D graphene foam (GF) encapsulated in flexible polydimethylsiloxane (PDMS). Because the 3D GF/PDMS sensor is based on the transformation of an electronic band structure aroused by static mechanical strain or KHz vibration, it can detect frequency signals by both tuning fork tests and piezoelectric ceramic transducer tests, which showed a clear linear response from audio frequencies, including frequencies up to 141 KHz in the ultrasound range. Because of their excellent response with a wide bandwidth, the 3D GF/PDMS sensors are attractive for interactive wearable devices or artificial prosthetics capable of perceiving seismic waves, ultrasonic waves, shock waves, and transient pressures.",

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AU - Zhang, H.

AU - Cai, Y.

AU - Ruan, J.

AU - Qu, K.

AU - Liu, E.

AU - Ni, X.

AU - Lu, M.

AU - Dong, X.

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AB - We developed a flexible force sensor consisting of 3D graphene foam (GF) encapsulated in flexible polydimethylsiloxane (PDMS). Because the 3D GF/PDMS sensor is based on the transformation of an electronic band structure aroused by static mechanical strain or KHz vibration, it can detect frequency signals by both tuning fork tests and piezoelectric ceramic transducer tests, which showed a clear linear response from audio frequencies, including frequencies up to 141 KHz in the ultrasound range. Because of their excellent response with a wide bandwidth, the 3D GF/PDMS sensors are attractive for interactive wearable devices or artificial prosthetics capable of perceiving seismic waves, ultrasonic waves, shock waves, and transient pressures.

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Flexible and wearable 3D graphene sensor with 141 KHz frequency signal response capability

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