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Nano Research 2024, 17(5): 4478-4488 https://doi.org/10.1007/s12274-023-6373-8
Research Article | Issue | Published: 28 December 2023

High-efficiency preparation of multifunctional conjugated electrospun graphene doped PVDF/CF yarns for energy harvesting and human movement monitoring in TENG textile

Show Author's Information Ting Yang,§,  Chengwei Wan,§,  Xiaoyu Zhang,  Tong Liu,  Li Niu( ),  Jian Fang( ),  Yuqing Liu( )
College of Textile and Clothing Engineering, Soochow University, Suzhou 215123, China

§ Ting Yang and Chengwei Wan contributed equally to this work.

Keywords:
graphene, polyvinylidene fluoride (PVDF), multifunctional, conjugated-electrospinning, yarn-based triboelectric nanogenerator (TENG)
Topics:
Nanogenerators
Cite this article:
Yang T, Wan C, Zhang X, et al. High-efficiency preparation of multifunctional conjugated electrospun graphene doped PVDF/CF yarns for energy harvesting and human movement monitoring in TENG textile. Nano Research, 2024, 17(5): 4478-4488. https://doi.org/10.1007/s12274-023-6373-8
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Abstract Full text Electronic supplementary material About this article

Portable power is an effective solution to realize self-powered sensors for wearable devices, promoting future sustainable development. Membrane-based triboelectric nanogenerators (M-TENGs) have emerged as a promising technology for harvesting biomechanical energy from human motion owing to their advantages, such as simple structure, lightweight design, and efficient energy conversion. However, the poor durability, low adaptability, and un-washability of two-dimensional membrane materials have largely hindered their application in wearable electronics. In this study, we propose a sheath–core polyvinylidene fluoride (PVDF)/graphene (G)-carbon fiber (CF) yarn fabricated via conjugate electrospinning, comprising a commercial CF core and an electrospun graphene-doped PVDF sheath, which improves the fatigue resistance of electrospun nanofiber films under prolonged friction and keeps a high degree of freedom. The resulting electronic textile, woven with the large-scale electrospun PVDF/G-CF yarn, demonstrates a remarkable power density of 25.5 mW·m−2. The tight distribution of PVDF/G nanofibers on the textile surface ensures excellent softness, washability, and durability. Furthermore, the electrospun PVDF/G-CF textile exhibits significant potential in pressure sensing, self-powered operation, and motion detection, making it highly suitable for wearable electronics applications.


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Abstract
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Electronic supplementary material
About this article

High-efficiency preparation of multifunctional conjugated electrospun graphene doped PVDF/CF yarns for energy harvesting and human movement monitoring in TENG textile

Show Author's information Ting Yang,§, Chengwei Wan,§, Xiaoyu Zhang, Tong Liu, Li Niu( ), Jian Fang( ), Yuqing Liu( )
College of Textile and Clothing Engineering, Soochow University, Suzhou 215123, China

§ Ting Yang and Chengwei Wan contributed equally to this work.

Abstract

Portable power is an effective solution to realize self-powered sensors for wearable devices, promoting future sustainable development. Membrane-based triboelectric nanogenerators (M-TENGs) have emerged as a promising technology for harvesting biomechanical energy from human motion owing to their advantages, such as simple structure, lightweight design, and efficient energy conversion. However, the poor durability, low adaptability, and un-washability of two-dimensional membrane materials have largely hindered their application in wearable electronics. In this study, we propose a sheath–core polyvinylidene fluoride (PVDF)/graphene (G)-carbon fiber (CF) yarn fabricated via conjugate electrospinning, comprising a commercial CF core and an electrospun graphene-doped PVDF sheath, which improves the fatigue resistance of electrospun nanofiber films under prolonged friction and keeps a high degree of freedom. The resulting electronic textile, woven with the large-scale electrospun PVDF/G-CF yarn, demonstrates a remarkable power density of 25.5 mW·m−2. The tight distribution of PVDF/G nanofibers on the textile surface ensures excellent softness, washability, and durability. Furthermore, the electrospun PVDF/G-CF textile exhibits significant potential in pressure sensing, self-powered operation, and motion detection, making it highly suitable for wearable electronics applications.

Keywords: graphene, polyvinylidene fluoride (PVDF), multifunctional, conjugated-electrospinning, yarn-based triboelectric nanogenerator (TENG)

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Publication history
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Acknowledgements

Publication history

Received: 09 October 2023
Revised: 23 November 2023
Accepted: 27 November 2023
Published: 28 December 2023
Issue date: May 2024

Copyright

© Tsinghua University Press 2023

Acknowledgements

Acknowledgements

The authors acknowledge the financial support from National Natural Science Foundation of China (No. 52173059), China National Textile and Apparel Council Science and Technology Guidance Project (No. 2020116), the Key Research and Development Program of Jiangsu Province (No. 21KJA540002), and the Open Project of Tianjin Key Laboratory of Optoelectronic Detection Technology and System (No. 2023LOTDS011).

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