Material selection and performance optimization strategies for a wearable friction nanogenerator (W-TENG)

Zhang, Haohao; Gong, Xiaoran; Li, Xue

doi:10.1039/d3ta04710e

Cited by 7 publications

(1 citation statement)

References 262 publications

(259 reference statements)

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“…Nevertheless, for keeping up with the increasing desire for microenergy harvesting and consumer technologies, TENGs need to overcome their intrinsic high inner resistance and low power density, especially in light of the quick development of the global Internet of Things (IoT) and wearable gadgets that are electronic [ 22 , 23 ]. Consequently, an increasing number of studies are trying to identify superior triboelectric materials, which is the basis and starting point of designing high-performance TENGs; although, other strategies such as structure design and surface engineering are also effective [ 24 , 25 ].…”

Section: Introductionmentioning

confidence: 99%

Ferroelectric Material in Triboelectric Nanogenerator

Zhang,

Wu,

Sun

et al. 2024

Materials

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Ferroelectric materials, with their spontaneous electric polarization, are renewing research enthusiasm for their deployment in high-performance micro/nano energy harvesting devices such as triboelectric nanogenerators (TENGs). Here, the introduction of ferroelectric materials into the triboelectric interface not only significantly enhances the energy harvesting efficiency, but also drives TENGs into the era of intelligence and integration. The primary objective of the following paper is to tackle the newest innovations in TENGs based on ferroelectric materials. For this purpose, we begin with discussing the fundamental idea and then introduce the current progress with TENGs that are built on the base of ferroelectric materials. Various strategies, such as surface engineering, either in the micro or nano scale, are discussed, along with the environmental factors. Although our focus is on the enhancement of energy harvesting efficiency and output power density by utilizing ferroelectric materials, we also highlight their incorporation in self-powered electronics and sensing systems, where we analyze the most favorable and currently accessible options in attaining device intelligence and multifunctionality. Finally, we present a detailed outlook on TENGs that are based on ferroelectric materials.

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Section: Introductionmentioning

confidence: 99%

Ferroelectric Material in Triboelectric Nanogenerator

Zhang,

Wu,

Sun

et al. 2024

Materials

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A Self‐Powered Dual Ratchet Angle Sensing System for Digital Twins and Smart Healthcare

Liu,

Gu,

Yang

et al. 2024

Adv Funct Materials

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In the swiftly progressing landscape of wearable electronics and the Internet of Things (IoTs), there is a burgeoning demand for devices that are lightweight, cost‐effective, and self‐powered. In this study, a self‐powered bidirectional knee joint motion monitoring system is introduced, leveraging a dual ratchet sensing (DRS) system fabricated using 3D printing technology. This approach offers substantial economic and portability benefits. The DRS system is engineered to harness the negative work generated from knee joint movements to power commercial electronic devices, obviating the need for additional metabolic energy from the human body. By synergizing the DRS with virtual reality technology, it becomes feasible to monitor knee joint movements in real‐time with remarkable accuracy, presenting a novel avenue for the integration of digital twin technology. Through the amalgamation of convolutional neural network machine learning algorithms with Bayesian optimization techniques, the DRS system can discern up to 97% of knee joint movements, paving the way for innovative applications in smart rehabilitation and healthcare.

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Gel-Based Triboelectric Nanogenerators for Flexible Sensing: Principles, Properties, and Applications

Lu,

Liao,

Guo

et al. 2024

Nano-Micro Lett.

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The rapid development of the Internet of Things and artificial intelligence technologies has increased the need for wearable, portable, and self-powered flexible sensing devices. Triboelectric nanogenerators (TENGs) based on gel materials (with excellent conductivity, mechanical tunability, environmental adaptability, and biocompatibility) are considered an advanced approach for developing a new generation of flexible sensors. This review comprehensively summarizes the recent advances in gel-based TENGs for flexible sensors, covering their principles, properties, and applications. Based on the development requirements for flexible sensors, the working mechanism of gel-based TENGs and the characteristic advantages of gels are introduced. Design strategies for the performance optimization of hydrogel-, organogel-, and aerogel-based TENGs are systematically summarized. In addition, the applications of gel-based TENGs in human motion sensing, tactile sensing, health monitoring, environmental monitoring, human–machine interaction, and other related fields are summarized. Finally, the challenges of gel-based TENGs for flexible sensing are discussed, and feasible strategies are proposed to guide future research.

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Material selection and performance optimization strategies for a wearable friction nanogenerator (W-TENG)

Abstract: With the development of science and technology, wearable electronic products are increasingly used daily. The demand for new energy is getting higher and higher, which puts forward higher requirements for...

Cited by 7 publications

References 262 publications

Ferroelectric Material in Triboelectric Nanogenerator

Ferroelectric Material in Triboelectric Nanogenerator

A Self‐Powered Dual Ratchet Angle Sensing System for Digital Twins and Smart Healthcare

Gel-Based Triboelectric Nanogenerators for Flexible Sensing: Principles, Properties, and Applications

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