A foot pressure sensor based on triboelectric nanogenerator for human motion monitoring

Zhang, Pengcheng; Zhang, Zhongxing; Cai, Jun

doi:10.1007/s00542-020-05199-5

Cited by 27 publications

(13 citation statements)

References 32 publications

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“…Zhang et al developed a novel sock-cloth-based TENG (SC-TENG) which consisted of a PTFE film as the triboelectric layer and copper foil as the conductive electrode. 162 The proposed SC-TENG was implemented as a self-powered sensor in the field of intelligent sports. The open-circuit voltage, short-circuit current, and output power of SC-TENG reached up to 267 V, 3.4 μA, and 225.6 μW, respectively.…”

Section: Sensing Human Motion and Physiological Activities Based On T...mentioning

confidence: 99%

Human body IoT systems based on the triboelectrification effect: energy harvesting, sensing, interfacing and communication

Zhang

Xin

Fan

et al. 2022

Energy Environ. Sci.

112

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Section: Sensing Human Motion and Physiological Activities Based On T...mentioning

confidence: 99%

Human body IoT systems based on the triboelectrification effect: energy harvesting, sensing, interfacing and communication

Zhang

Xin

Fan

et al. 2022

Energy Environ. Sci.

112

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show abstract

“…Many researchers work on different kinds of devices using the triboelectric effect. This effect can be used in devices such as self-powered textiles [ 1 ], wearable electronics [ 2 ], self-powered human motion sensors [ 3 ], self-powered automobile sensors [ 4 ], position sensing and touchpads [ 5 ], flexible nano generators [ 6 ], non-invasive biomedical monitoring systems [ 7 ], energy harvesters for devices in internet of things infrastructure [ 8 ], environmental monitoring systems [ 9 ], air filters [ 10 ], and topically very important research into protection against a coronavirus pandemic, where the simple triboelectric nanogenerator with an electrocution layer may serve the purpose of filtration and the deactivation of SARS-CoV-2 [ 11 ]. These perspectives lead us to study this phenomenon and utilize its potential in simple devices based on a fibrous structure.…”

Section: Introductionmentioning

confidence: 99%

Triboelectric Response of Electrospun Stratified PVDF and PA Structures

et al. 2022

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Utilizing the triboelectric effect of the fibrous structure, a very low cost and straightforward sensor or an energy harvester can be obtained. A device of this kind can be flexible and, moreover, it can exhibit a better output performance than a device based on the piezoelectric effect. This study is concerned with comparing the properties of triboelectric devices prepared from polyvinylidene fluoride (PVDF) fibers, polyamide 6 (PA) fibers, and fibrous structures consisting of a combination of these two materials. Four types of fibrous structures were prepared, and then their potential for use in triboelectric devices was tested. Namely, individual fibrous mats of (i) PVDF and (ii) PA fibers, and their combination—(iii) PVDF and PA fibers intertwined together. Finally, the fourth kind was (iv), a stratified three-layer structure, where the middle layer from PVDF and PA intertwined fibers was covered by PVDF fibrous layer on one side and by PA fibrous layer on the opposite side. Dielectric properties were examined and the triboelectric response was investigated in a simple triboelectric nanogenerator (TENG) of individual or combined (i–iv) fibrous structures. The highest triboelectric output voltage was observed for the stratified three-layer structure (the structure of iv type) consisting of PVDF and PA individual and intertwined fibrous layers. This TENG generated 3.5 at peak of amplitude at 6 of excitation frequency and was most sensitive at the excitation signal. The second highest triboelectric response was observed for the individual PVDF fibrous mat, generating 2.8 at peak at the same excitation frequency. The uniqueness of this work lies in the dielectric and triboelectric evaluation of the fibrous structures, where the materials PA and PVDF were electrospun simultaneously with two needles and thus created a fibrous composite. The structures showed a more effective triboelectric response compared to the fibrous structure electrospun by one needle.

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“…[1][2][3][4][5][6][7] Inspired by the triboelectric effect between clothes during human movement, many studies have achieved energy conversion and biosensing by integrating triboelectric nanogenerators (TENGs) into the fabrics that humans wear or by attaching TENG units to human bodies. [8][9][10][11][12][13][14] However, the materials used in the majority of studies were not only complex but also expensive. As a result, choosing natural triboelectric materials is a feasible idea for lowering the cost and processing difficulty of TENGs.…”

Section: Introductionmentioning

confidence: 99%

Wearable Electronics Powered by Triboelectrification between Hair and Cloth for Monitoring Body Motions

et al. 2022

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Diverse triboelectric nanogenerators (TENGs) have been extensively applied in self‐powered wearable electronics. The TENG‐based demonstration using the human body as a triboelectric material is rare, though wearable electronics plays a more and more pivotal role in portable intelligent medicine. Human hair, as part of the human body, can be a component of a TENG‐based wearable system. Herein, a novel body‐based TENG configuration made of human hair and polydimethylsiloxane (PDMS)‐coated carbon cloth is proposed. Due to triboelectrification between the hair and the PDMS layer, the output voltage can deliver 1.713 and 0.377 V in the vertical contact‐separation mode and sliding mode, respectively. In addition, a self‐powered application based on the hair‐based TENG for actively monitoring the motion state by comparing the amplitude and frequency of the output voltages is successfully demonstrated. This study broadens the application of body‐based TENGs and provides a promising and feasible strategy for developing smart health monitoring.

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A foot pressure sensor based on triboelectric nanogenerator for human motion monitoring

Cited by 27 publications

References 32 publications

Human body IoT systems based on the triboelectrification effect: energy harvesting, sensing, interfacing and communication

Human body IoT systems based on the triboelectrification effect: energy harvesting, sensing, interfacing and communication

Triboelectric Response of Electrospun Stratified PVDF and PA Structures

Wearable Electronics Powered by Triboelectrification between Hair and Cloth for Monitoring Body Motions

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