Improving the performance of nanogenerators via micro-capacitors and enhanced dipoles

Zhao, Binbin; Lei, Lulu; Zhu, Yan; Cheng, Zefei; Wang, Shuo; Liu, Mingjia; Yu, Tao; Yang, Weidong; Li, Yan

doi:10.1016/j.cej.2023.142086

Cited by 9 publications

(5 citation statements)

References 70 publications

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“…This can be achieved through various means, including process optimization and the incorporation of nanofillers such as graphene, carbon nanotubes (CNTs), and BaTiO 3 . [14,[143][144][145][146][147] Chen et al designed a contact-separation hybrid PTEG employing PVDF-TrFE/silver nanowire (AgNW)-based nanofibers and a polydimethylsiloxane (PDMS)/graphite composite material as the piezoelectric and triboelectric layers, respectively, with three cascade-structured fabric electrodes. [148] The incorporation of Ag-NWs enhanced both the piezoelectricity and conductivity of the electrospun PVDF-TrFE nanofibers, resulting in low dielectric loss and a high dielectric constant.…”

Section: Pvdf-based Electroactive Materialsmentioning

confidence: 99%

Emerging Trends of Nanofibrous Piezoelectric and Triboelectric Applications: Mechanisms, Electroactive Materials, and Designed Architectures

Zhi,

Shi,

et al. 2024

Advanced Materials

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Over the past few decades, significant progress in piezo‐/tribo‐electric nanogenerators (PTEGs) has led to the development of cutting‐edge wearable technologies. Nanofibers with good designability, controllable morphologies, large specific areas, and unique physicochemical properties provide a promising platform for PTEGs for various advanced applications. However, the further development of nanofiber‐based PTEGs is limited by technical difficulties, ranging from materials design to device integration. Herein, we systematically review the current developments in PTEGs based on electrospun nanofibers. The review begins with the mechanisms of PTEGs and the advantages of nanofibers and nanodevices, including high breathability, waterproofness, scalability, and thermal–moisture comfort. In terms of materials and structural design, novel electroactive nanofibers and structure assemblies based on one‐dimensional micro/nanostructures, two‐dimensional bionic structures, and three‐dimensional multilayered structures are discussed. Subsequently, nanofibrous PTEGs in applications such as energy harvesters, personalized medicine, personal protective equipment, and human‐machine interactions are summarized. Nanofiber‐based PTEGs still face many challenges such as energy efficiency, material durability, device stability, and device integration. In the final section of this review, the research gap between research and practical applications of PTEGs is discussed, and emerging trends are proposed, providing some ideas for the development of intelligent wearables.This article is protected by copyright. All rights reserved

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Section: Pvdf-based Electroactive Materialsmentioning

confidence: 99%

Emerging Trends of Nanofibrous Piezoelectric and Triboelectric Applications: Mechanisms, Electroactive Materials, and Designed Architectures

Zhi,

Shi,

et al. 2024

Advanced Materials

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“…PDMS and PVDF have been combined with barium titanate to prepare polymer-ceramic composite films, and the charge generated by friction promoting the dipole polarization further improves the performance of H-P/TENG. [11,16]…”

Section: Piezoelectric Materialsmentioning

confidence: 99%

“…Triboelectric materials have been an essential part in TENG, and the same goes for triboelectric sensors. It is the high flexibility of selected materials that enables the wide application of triboelectric sensors, and many advanced triboelectric materials have been developed in recent years, [11,16] with the assistance of different advanced processing technologies, attributing to the rapid development of triboelectric sensors.…”

Section: Introductionmentioning

confidence: 99%

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Advances in Multifunctional Sensors Based on Triboelectric Nanogenerator – Applications, Triboelectric Materials, and Manufacturing Integration

Liao,

Ni,

Peng

et al. 2024

Adv Materials Technologies

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With the rapid development of industry and information technology, rough challenges have been put forward for the traditional sensor technology to meet the increasingly complex and diverse application demands in actual production and daily life, and the widely distributed sensor network also faces complex power supply and maintenance problems. As a new energy conversion technology, triboelectric nanogenerators (TENGs) based on triboelectrification and electrostatic induction effect can respond to the weak mechanical stimuli in the surrounding environment and generate corresponding electrical signals to realize the sensing function without external power supply. In addition, TENGs have the advantages of wide selection of fabrication materials, flexible and diverse fundamental modes, which can be customized for different applications and realize different sensing functions. In recent years, triboelectric sensors based on TENGs have developed rapidly, and researchers have developed variable triboelectric sensors for different application scenarios. In this paper, the developed triboelectric sensos have been classified into different categories, the advanced strategy to prepare advanced triboelectric materials and technology used for manufacturing integration have been introduced. This work summarizes the main applications of triboelectric sensors and put forward the current challenges, so as to provide guidance and instructions for the future development of triboelectric sensors.

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“…K. Ghosh 18 et al incorporated micropatterns on a PDMS/Ti 3 C 2 T x MXene surface utilizing 3D printing technology and acquired a negative TE material, which achieved an open-circuit voltage ( V oc ) of 146 V and a short-circuit current ( I sc ) at 32 μA when a 2.8 N, 10 Hz external force was applied. Yu's group 19 prepared a hybrid nanogenerator (HENG) based on a PVDF/PDMS-barium titanate nanowires (BTO)–carbon nanotube (CNT) composite nanofiber through an electrospinning process, whose maximum output power density was 223.7 mW m −2 with a 100 MΩ load, and this continuous power source could supply electricity to small electronic devices.…”

Section: Introductionmentioning

confidence: 99%

Enhanced nanogenerator by embedding lead-free double perovskite Cs₂AgBiBr₆ in polymer matrix for hybrid energy harvesting

Wang,

et al. 2024

J. Mater. Chem. C

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Improving the performance of nanogenerators via micro-capacitors and enhanced dipoles

Cited by 9 publications

References 70 publications

Emerging Trends of Nanofibrous Piezoelectric and Triboelectric Applications: Mechanisms, Electroactive Materials, and Designed Architectures

Emerging Trends of Nanofibrous Piezoelectric and Triboelectric Applications: Mechanisms, Electroactive Materials, and Designed Architectures

Advances in Multifunctional Sensors Based on Triboelectric Nanogenerator – Applications, Triboelectric Materials, and Manufacturing Integration

Enhanced nanogenerator by embedding lead-free double perovskite Cs₂AgBiBr₆ in polymer matrix for hybrid energy harvesting

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Improving the performance of nanogenerators via micro-capacitors and enhanced dipoles

Cited by 9 publications

References 70 publications

Emerging Trends of Nanofibrous Piezoelectric and Triboelectric Applications: Mechanisms, Electroactive Materials, and Designed Architectures

Emerging Trends of Nanofibrous Piezoelectric and Triboelectric Applications: Mechanisms, Electroactive Materials, and Designed Architectures

Advances in Multifunctional Sensors Based on Triboelectric Nanogenerator – Applications, Triboelectric Materials, and Manufacturing Integration

Enhanced nanogenerator by embedding lead-free double perovskite Cs2AgBiBr6 in polymer matrix for hybrid energy harvesting

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Enhanced nanogenerator by embedding lead-free double perovskite Cs₂AgBiBr₆ in polymer matrix for hybrid energy harvesting