Hierarchically spring nanofibrous and wrinkled-structured electrode for highly comfortable wearable triboelectric nanogenerators

Haghayegh, Marjan; Cao, Ran; Zabihi, Fatemeh; Bagherzadeh, Roohollah; Miao, Yue-E.; Yang, Shengyuan; Zhu, Meifang

doi:10.1039/d3ta04988d

Cited by 4 publications

(1 citation statement)

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“…Due to restrictions on the volume and surface area of the fibers, the electrical output of fiber-based TENGs is not high. Therefore, fabric-based TENGs have become an inevitable choice [13][14][15][16][17]. Chen et al [13] also studied the electrical output performance of three basic weaving patterns (plain, sitting, and twill) and reported that the plain pattern had the highest effective illumination area ratio of 96.1%, which delivered the highest current density of 6.35 mA cm −2 .…”

Section: Introductionmentioning

confidence: 99%

Preparation and sensing performance of wet-spun fabric triboelectric nanogenerator for energy harvesting

Li,

Zhang,

Wang

et al. 2024

Nanotechnology

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Flexible, wearable triboelectric nanogenerators (TENGs) monitoring human movement and health signals have received more attention recently. In particular, developing a flexible TENG combining stress, strain, electrical output performance and durability becomes the current research focus. Herein, a highly stretchable, self-powered coaxial yarn TENGs were manufactured using a low-cost, efficient continuous wet-spinning method. Carbon nanotube/conductive thermoplastic polyurethane (MWCNT/CTPU) and polyvinylidene fluoride-hexafluoropropylene (PVDF-HFP) were utilized for the coaxial fibers conductive layers and dielectric layers, respectively. Fibers were continuously collected over a length of 10 m. Excellent electrical output with an open-circuit voltage (Voc) of 11.4 V, short-circuit current (Isc) of 114.8 nA, and short-circuit transfer charge (Qsc) of 6.1 nC was achieved. In addition, fabric TENGs with different two and three dimensional structures were further prepared by the developed coaxial fibers. The corresponding electrical output properties and practical performance were discussed. Results showed that the four-layer three-dimensional angle interlocking structure exhibited the optimal performance with an open-circuit voltage (Voc) of 38.4 V, short-circuit current (Isc) of 451.5 nA, and short-circuit transfer charge (Qsc) of 23.1 nC.

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