Ultralight graphene aerogel/PVDF composites for flexible piezoelectric nanogenerators

Yiting Guo; Jie Xu; Wanli Wu; Shuhang Liu; Jia Zhao; Emilia Pawlikowska; Mikołaj Szafran; Feng Gao

doi:10.1016/j.coco.2020.100542

Ultralight graphene aerogel/PVDF composites for flexible piezoelectric nanogenerators

Yiting Guo, Jie Xu, Wanli Wu, Shuhang Liu, Jia Zhao, Emilia Pawlikowska, Mikołaj Szafran, Feng Gao

School of Materials Sience and Engineering

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

24 Scopus citations

Abstract

Graphene aerogel/PVDF (GA/PVDF) composites with a three-dimensional structure were prepared using a vacuum-assisted impregnation process. The phase structure, morphology and piezoelectric properties have been systematically studied. The results show that GA/PVDF composites have good piezoelectric output characteristics and can provide corresponding feedback according to the magnitude and frequency of the acting force. When the PVDF concentration is 80 mg/mL, the GA/PVDF composite reaches the highest piezoelectric constant (d₃₃ = 16 pC/N). The average peak output current is approximately 0.51 μA and shows good stability under repeated pressing. It is promising to apply to the field of flexible pressure sensors that can be self-powered.

Original language	English
Article number	100542
Journal	Composites Communications
Volume	22
DOIs	https://doi.org/10.1016/j.coco.2020.100542
State	Published - Dec 2020

Keywords

GA/PVDF composites
Graphene aerogel (GA)
Piezoelectric properties
Pressure sensors

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10.1016/j.coco.2020.100542

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title = "Ultralight graphene aerogel/PVDF composites for flexible piezoelectric nanogenerators",

abstract = "Graphene aerogel/PVDF (GA/PVDF) composites with a three-dimensional structure were prepared using a vacuum-assisted impregnation process. The phase structure, morphology and piezoelectric properties have been systematically studied. The results show that GA/PVDF composites have good piezoelectric output characteristics and can provide corresponding feedback according to the magnitude and frequency of the acting force. When the PVDF concentration is 80 mg/mL, the GA/PVDF composite reaches the highest piezoelectric constant (d33 = 16 pC/N). The average peak output current is approximately 0.51 μA and shows good stability under repeated pressing. It is promising to apply to the field of flexible pressure sensors that can be self-powered.",

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author = "Yiting Guo and Jie Xu and Wanli Wu and Shuhang Liu and Jia Zhao and Emilia Pawlikowska and Miko{\l}aj Szafran and Feng Gao",

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year = "2020",

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doi = "10.1016/j.coco.2020.100542",

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TY - JOUR

T1 - Ultralight graphene aerogel/PVDF composites for flexible piezoelectric nanogenerators

AU - Guo, Yiting

AU - Xu, Jie

AU - Wu, Wanli

AU - Liu, Shuhang

AU - Zhao, Jia

AU - Pawlikowska, Emilia

AU - Szafran, Mikołaj

AU - Gao, Feng

PY - 2020/12

Y1 - 2020/12

N2 - Graphene aerogel/PVDF (GA/PVDF) composites with a three-dimensional structure were prepared using a vacuum-assisted impregnation process. The phase structure, morphology and piezoelectric properties have been systematically studied. The results show that GA/PVDF composites have good piezoelectric output characteristics and can provide corresponding feedback according to the magnitude and frequency of the acting force. When the PVDF concentration is 80 mg/mL, the GA/PVDF composite reaches the highest piezoelectric constant (d33 = 16 pC/N). The average peak output current is approximately 0.51 μA and shows good stability under repeated pressing. It is promising to apply to the field of flexible pressure sensors that can be self-powered.

AB - Graphene aerogel/PVDF (GA/PVDF) composites with a three-dimensional structure were prepared using a vacuum-assisted impregnation process. The phase structure, morphology and piezoelectric properties have been systematically studied. The results show that GA/PVDF composites have good piezoelectric output characteristics and can provide corresponding feedback according to the magnitude and frequency of the acting force. When the PVDF concentration is 80 mg/mL, the GA/PVDF composite reaches the highest piezoelectric constant (d33 = 16 pC/N). The average peak output current is approximately 0.51 μA and shows good stability under repeated pressing. It is promising to apply to the field of flexible pressure sensors that can be self-powered.

KW - GA/PVDF composites

KW - Graphene aerogel (GA)

KW - Piezoelectric properties

KW - Pressure sensors

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DO - 10.1016/j.coco.2020.100542

M3 - 文章

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SN - 2452-2139

VL - 22

JO - Composites Communications

JF - Composites Communications

M1 - 100542

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Ultralight graphene aerogel/PVDF composites for flexible piezoelectric nanogenerators

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Keywords

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