A high-output flexible triboelectric nanogenerator based on polydimethylsiloxane/three-dimensional bilayer graphene/carbon cloth composites

Qian, Yongteng; Sohn, Min Kyun; He, Wen; Park, Hyun Je; Subramanian, K. R. V.; Kang, Dae Joon

doi:10.1039/d0ta04341a

Cited by 39 publications

(20 citation statements)

References 52 publications

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“…In the fabrication of common TENGs, metal electrodes are usually attached to the triboelectric materials, [93][94][95] for better charge induction and transfer during the contact and separation cycles. However, most H-TENGs have polymer films, particularly PDMS and silicone rubber, as the coverage and triboelectric materials.…”

Section: Mechanical Reliabilitymentioning

confidence: 99%

Hydrogels as Soft Ionic Conductors in Flexible and Wearable Triboelectric Nanogenerators

Luo

Cuthbert

et al. 2022

Advanced Science

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Flexible triboelectric nanogenerators (TENGs) have attracted increasing interest since their advent in 2012. In comparison with other flexible electrodes, hydrogels possess transparency, stretchability, biocompatibility, and tunable ionic conductivity, which together provide great potential as current collectors in TENGs for wearable applications. The development of hydrogel-based TENGs (H-TENGs) is currently a burgeoning field but research efforts have lagged behind those of other common flexible TENGs. In order to spur research and development of this important area, a comprehensive review that summarizes recent advances and challenges of H-TENGs will be very useful to researchers and engineers in this emerging field. Herein, the advantages and types of hydrogels as soft ionic conductors in TENGs are presented, followed by detailed descriptions of the advanced functions, enhanced output performance, as well as flexible and wearable applications of H-TENGs. Finally, the challenges and prospects of H-TENGs are discussed.

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Section: Mechanical Reliabilitymentioning

confidence: 99%

Hydrogels as Soft Ionic Conductors in Flexible and Wearable Triboelectric Nanogenerators

Luo

Cuthbert

et al. 2022

Advanced Science

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“…Qian et al successfully fabricated the PDMS/3D Bilayer Graphene/Carbon Cloth (PDMS/G/CC) nanocomposites as bottom electrodes in TENGs. 142 It is reported 3D Bilayer Graphene grown on CC can provide a large surface area and a highly interconnected 3D structure that offer rich charger transfer pathways, further harvesting the energy from all directions. These features lead to significant improvement in output performance under multiple deformation modes.…”

Section: Graphene Nanocomposites As Triboelectric Materials For Tengsmentioning

confidence: 99%

A review on applications of graphene in triboelectric nanogenerators

Hatta

Haniff

Mohamed

2021

Intl J of Energy Research

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Summary Nanogenerators is the growing technology that facilitates self‐powered systems, sensors, and flexible and portable electronics in the thriving era of internet of things (IoT). Since the first invention of the triboelectric nanogenerators (TENGs) in 2012, it has become one of the most important inventions in energy harvesting technologies. In this paper, a brief review on the recent progress of energy harvesting research based on TENGs technology is discussed. Basic working modes of the TENG are discussed in detail and the general procedure to synthesize, measure, and characterize a nanogenerator is presented in a direct structure. The triboelectric material choices are extremely important for TENGs since the triboelectric effects of the materials are fundamental for TENGs. The materials used as triboelectric layers are varied from polymers, metals, and inorganic materials with the commonly used materials are dielectric polymers such as PTFE, PVDF, PDMS, nylon, and Kapton. Recently, two‐dimensional (2D) materials have been widely reported as candidate materials for TENGs. Graphene, the most attractive 2D materials exhibits an excellent electrical property, great flexibility, and a high surface‐to‐volume ratio. Owing to the very low thickness of the atomic unit, a stacking graphene structure can be also made to form a very thin and miniature TENGs device. The major applications of the graphene as active materials for TENGs as a sustainable energy harvester are presented, following which structural designs and materials optimization for output performance improvement of the graphene‐based TENGs are summarized. Finally, the future directions and perspectives of the graphene‐based TENGs are outlined. The graphene‐based TENGs is not only a sustainable micro‐power source for small devices, but also serves as a potential macro‐scale generator of power from blue energy in the future.

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“…To enhance the electrical output of the TENG without hybridizing, several methods were reported: material selection [22][23][24][25][26], contact surface modification [27][28][29][30][31], using an external circuit [32], and structural modification [33][34][35]. For example, a simple method to enhance the electrical output of the TENG is adopting two materials far from each other in the triboelectric series.…”

Section: Introductionmentioning

confidence: 99%

Large-Scale Lever-Based Triboelectric Nanogenerator for Sensing Lateral Vibration and Wrist or Finger Bending for Controlling Shooting Game

2021

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With advances in internet of things technology and fossil fuel depletion, energy harvesting has emerged rapidly as a means of supplying small electronics with electricity. As a method of enhancing the electrical output of the triboelectric nanogenerator, specialized for harvesting mechanical energy, structural modification to amplify the input force is receiving attention due to the limited input energy level. In this research, a lever structure was employed for delivering the amplified input force to a triboelectric nanogenerator. With structural optimization of a 2.5 cm:5 cm distance ratio of the first and second parts using two lever structures, the highest electrical outputs were achieved: a VOC of 51.03 V, current density of 3.34 mA m−2, and power density of 73.5 mW m−2 at 12 MΩ in the second part. As applications of this triboelectric generator, a vertical vibration sensor and a wearable reloading trigger in a gun shooting game were demonstrated. The possibility for a wearable finger bending sensor with low-level input was checked using a minimized device. Enhanced low-detection limit with amplified input force from the structural advantage of this lever-based triboelectric nanogenerator device can expand its applicability to the mechanical trigger for wearable electronics.

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A high-output flexible triboelectric nanogenerator based on polydimethylsiloxane/three-dimensional bilayer graphene/carbon cloth composites

Abstract: Herein, flexible triboelectric nanogenerators (FTENG) composed of polydimethylsiloxane/3D bilayer graphene/carbon cloth (PDMS/3D BLGr/CC) were prepared via a facile strategy. Gold/polyethylene terephthalate (Au/PET) and the PDMS/3D BLGr/CC composites were employed as...

Cited by 39 publications

References 52 publications

Hydrogels as Soft Ionic Conductors in Flexible and Wearable Triboelectric Nanogenerators

Hydrogels as Soft Ionic Conductors in Flexible and Wearable Triboelectric Nanogenerators

A review on applications of graphene in triboelectric nanogenerators

Large-Scale Lever-Based Triboelectric Nanogenerator for Sensing Lateral Vibration and Wrist or Finger Bending for Controlling Shooting Game

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