Flexible triboelectric nanogenerator based on silk fibroin-modified carbon nanotube arrays

Xiong, Qionghao; Yang, Zhaohui; Zhang, Xiaohua

doi:10.1016/j.cej.2024.148986

Cited by 11 publications

(3 citation statements)

References 53 publications

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“…21 When SF interacts with other materials during frictional contact, it mobilizes charge carriers within its structure, leading to effective charge separation and accumulation. 22 This phenomenon is crucial for SF-TENGs because it significantly enhances the electrical output and energy conversion efficiency. Furthermore, SF exhibits a strong propensity for electron loss, a fundamental characteristic for establishing a potential difference between TENG electrodes.…”

Section: Introductionmentioning

confidence: 99%

“…Within SF, the semicrystalline regions act as effective conduits for charge conduction, facilitating the facile movement of electrons during the triboelectric process . When SF interacts with other materials during frictional contact, it mobilizes charge carriers within its structure, leading to effective charge separation and accumulation . This phenomenon is crucial for SF-TENGs because it significantly enhances the electrical output and energy conversion efficiency.…”

Section: Introductionmentioning

confidence: 99%

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Silk Fibroin-Based Triboelectric Nanogenerators for Energy Harvesting and Biomedical Applications

Gan,

Wei,

Zhou

et al. 2024

ACS Appl. Nano Mater.

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Triboelectric nanogenerators (TENGs) developed from eco-friendly natural materials rather than traditional electronic materials are more favorable for biocompatible applications and for use in sustainable life-cycle analysis. Silk fibroin (SF) has emerged as an abundant natural biomaterial that shows great potential in the preparation of TENGs. Silk-based triboelectric nanogenerators (SF-TENGs) have green energy harvesting properties, are environmentally friendly, are biocompatible, are not fully present in conventional TENGs, and are important for the next generation of selfpowered electronic devices. In this review, the latest progress in SF-TENGs, including their applied materials, structural properties, manufacturing processes, and application scenarios, is discussed. These SF-TENGs show great potential for use in emerging energy and electronic applications as well as smart living and medical assistance. In addition, the potential value of SF-TENGs has been further explored, and the possibility and main challenges of expanding and applying SF-TENGs to the field of microneedles (MNs) are discussed.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Silk Fibroin-Based Triboelectric Nanogenerators for Energy Harvesting and Biomedical Applications

Gan,

Wei,

Zhou

et al. 2024

ACS Appl. Nano Mater.

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“…The superb deformability of flexible materials significantly enhances the reliability of the triboelectric layers, and makes them highly compatible with most complex surfaces. Flexible rotation triboelectric nanogenerators (FR-TENGs) can be more agilely incorporated into applications like body moving [ 23 ], button pressing [ 24 ], machine lathing [ 25 ], geological drilling [ 26 , 27 , 28 ], etc. However, the contact force between flexible triboelectric layers is much smaller than that between their rigid counterparts, which is a key limiting factor for the relatively low output power of FR-TENGs.…”

Section: Introductionmentioning

confidence: 99%

Stiffness Modulation in Flexible Rotational Triboelectric Nanogenerators for Dual Enhancement of Power and Reliability

Li,

Yin,

Zhou

et al. 2024

Nanomaterials

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Rotational nanogenerators with flexible triboelectric layers have wide applications and high reliability. However, flexible materials cause a severe reduction in contact force and thus triboelectric output power. Unlike previous works devising complex auxiliary structures to solve this issue, this paper focuses on improving the contact material mechanics and proposes a stiffness modulation method. By introducing fine patterns to the contacting rotor–stator pairs, the effective elastic modulus was regulated from approximately 103 to 105 MPa, and the output voltage was modulated from approximately 24.39% to 375.87% compared to the non-patterned rotor–stator pairs, corresponding to a maximal a 14 times increase in output power. A maximal power density of 18.75 W/m2 was achieved on 10 MΩ resistance at 9.6 Hz, which is even beyond the power density of most rigid triboelectric interfaces. Moreover, high reliability could be maintained when the volume ratio of the horizontal patterns exceeded a threshold value of 33.5% as the stator and 63.6% as the rotor for a 0.5 mm linewidth. These results prove the efficacy of the stiffness modulation method for jointly achieving high output power and high reliability in flexible rotational triboelectric nanogenerators.

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Sustainable materials systems for triboelectric nanogenerator

Hao,

Zhang,

et al. 2024

SusMat

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Benefiting from the high sensitivity and electromechanical conversion efficiency, triboelectric nanogenerators (TENGs) are widely used in various fields of self‐powered sensing and mechanical energy harvesting, which have great potential for application in future smart Internet of Things. The development of sustainable triboelectric materials with high‐performance has a vital impact on the construction of TENG devices that combine high‐output performance and environmental friendliness, which have a positive impact on the sustainable development of humanity. This review systematically and comprehensively summarizes the latest research work on TENG's sustainable materials. First, an overall overview is provided based on the composition of the materials, including amino acids, polysaccharides, and synthetic polymer, and the representative research works are further classified and summarized in detail. In addition, the latest research progress of TENG with sustainable materials in the fields of self‐powered sensing and mechanical energy harvesting applications is also summarized. Finally, the overviews are provided for the various challenges in the current development of TENG's sustainable material, and the related outlooks are offered on the corresponding development strategies and directions of this field in the future.

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Flexible triboelectric nanogenerator based on silk fibroin-modified carbon nanotube arrays

Cited by 11 publications

References 53 publications

Silk Fibroin-Based Triboelectric Nanogenerators for Energy Harvesting and Biomedical Applications

Silk Fibroin-Based Triboelectric Nanogenerators for Energy Harvesting and Biomedical Applications

Stiffness Modulation in Flexible Rotational Triboelectric Nanogenerators for Dual Enhancement of Power and Reliability

Sustainable materials systems for triboelectric nanogenerator

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