Test bed for rotation-based triboelectric nanogenerators

Hong, Daewoong; Choe, Jungho; Lee, Yong-Joo; Jeong, Jaehwa

doi:10.1063/1.5141487

Cited by 10 publications

(4 citation statements)

References 10 publications

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“…One of the most environmentally friendly and sustainable energy-scavenging technologies is the TENG. The TENG harvests electrical energy in an eco-friendly manner from natural kinetic energy sources, such as vibrating or rotating systems. − Since the TENG device can be fabricated with flexible materials and displays scalable properties, it can be applied to various systems without consideration of the location or structure. − By virtue of the advantages of low cost, accessible materials, lightweight, and various working modes (contact separation mode, contact sliding mode, single-electrode mode, and freestanding triboelectric layer mode), TENGs are more suitable in real life than other technologies. − To apply TENGs in various practical fields, researchers have attempted to fabricate portable, flexible, and robust devices with high power density.…”

Section: Introductionmentioning

confidence: 99%

Film-Sponge-Coupled Triboelectric Nanogenerator with Enhanced Contact Area Based on Direct Ultraviolet Laser Ablation

Cho

Kim

et al. 2021

ACS Appl. Mater. Interfaces

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Triboelectric nanogenerators (TENGs) recently have emerged as applicable and eco-friendly harvesting devices. Numerous studies have been actively conducted to fabricate a flexible and robust TENG with high-output performance. Herein, a film-sponge-coupled TENG (FS-TENG) is proposed using direct ultraviolet laser ablation, as a method for surface modification of a polyimide (PI) film. This state-of-the-art method has advantages of accuracy as well as time efficiency in creating the pattern on the surface; thus, the pre-designed patterns can be precisely constructed within only a minute. In the laser-ablated PI film, the structural design and chemical modification on the surface are investigated related to the triboelectric output performance. Thereafter, a sponge is fabricated based on non-woven polyamide and silicone rubber, which can fully contact with the micro-/nano-scaled structure on the surface of the PI film. After an optimization, the FS-TENG exhibits 48.19 V of open-circuit voltage and 1.243 μA of short-circuit current, which shows approximately 3 times enhanced electric performance compared to the FS-TENG using a pristine PI film. The FS-TENG device demonstrates its robustness through both mechanical stress and flexible stress by showing less than 5% degradation after 50,000 cycles. On the basis of the high flexibility and stability of the FS-TENG, a self-powered scoreboard is successfully developed for lighting a scoreboard in a soccer field. This feasible lighting system can be operated by harvesting the kinetic energy of a soccer player without an additional power source. The novel FS-TENG, thus, provides remarkable potential for a self-powered indoor harvesting system.

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Section: Introductionmentioning

confidence: 99%

Film-Sponge-Coupled Triboelectric Nanogenerator with Enhanced Contact Area Based on Direct Ultraviolet Laser Ablation

Cho

Kim

et al. 2021

ACS Appl. Mater. Interfaces

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“…Greater surface contact will occur during the rotation of the aluminium rotator toward the PVC material due to the material's wide surface area and high surface roughness. The frictional force generated during rotation will rise under these circumstances, leading to a greater output voltage [23,24]. More surface modification will be required for future investigations to grasp this property, in depth.…”

Section: Effect Of Grit Size On Voltage Output Vrmsmentioning

confidence: 99%

The Effect of an Aluminium Disc Rotator on Polyvinyl Chloride (PVC) Material using 360° Lateral Sliding Disc Triboelectric Generator (TEG)

Muhammad Mahfuz Salehhon,

Zul Izie Hafifi Mohamad Ghazali,

Ahmad Nazirul Manan

et al. 2023

ARASET

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Triboelectric generatorshave the ability to harvest energy from human activities, mechanical vibration, and other sources to drive minor electronic devices.In many circumstances, charges created from a triboelectric process are referred to as a negative effect or waste energy. Here, this paper will demonstrate an approach of the charging process in friction with a rotator and stator to investigate the effects of rotating speed and the different thickness of electrification to the output voltage. The 360° lateral sliding disc triboelectric generator (TEG) fabricated by connecting an Aluminium disc to the motor as a rotator, while a Polyvinyl Chloride (PVC) sheet placed at the top of an acrylic coated by a copper electrode served as a stator. PVC material with different thicknesses (0.2, 0.5 and 0.7 mm) and grit sizes were used (P500, P1000 and P1500) and prepared prior to the experiment. Thus, three different rotational speeds (500, 1000 and 1500 rpm) were monitored using a tachometer to standardize the speed for each set of experiment. Such as a TEG at 1500 rpm on a 0.2 mm thick sample with P500 grit size modification delivers a maximum voltage output, VRMSof 13.8 mV, with the maximum calculated current of 69 µA and the maximum power density of 0.485 mW/m2.

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“…TENG functions in four different modes of operation: contact separation mode, sliding mode, single electrode mode, and freestanding mode. Sliding and freestanding modes may further be evaluated on the basis of operation in either linear or rotary motion [20]. These modes may also impact the efficiency of the TENG based on the application [21].…”

Section: Introductionmentioning

confidence: 99%

Self-powered TENG probe for scanning surface charge distribution

Bugti,

Kasi,

Ullah

et al. 2023

Nanotechnology

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Triboelectric nanogenerators are remarkable devices that show great potential in harvesting energy from mechanical work and are generally used for sensing purposes. Here we report a novel method for the fabrication of ZnO microspheres and the formation of TENG based on ZnO/PDMS composite. The zinc oxide microspheres with needle decorated structure via thermal oxidation of metallic zinc was grown at 500 °C. The TENG was then fabricated using ZnO/PDMS composite with Au sputtered electrode. While PDMS is a good triboelectric material, its output power density is low. Embedding ZnO micro/nanostructures in PDMS increases the output power of PDMS-based TENG manifolds. ZnO with a high dielectric constant exhibits semiconductor properties as well as piezoelectric properties. This combines with the triboelectric properties of PDMS and gives a significant boost to the TENG performance. This composite structure is used for the fabrication of high output power density TENG using contact separation mode, where the power density of 27Wm−2 was achieved. Consequently, a novel device application to detect surface charge density through the fabricated TENG is reported and the subsequent reconstruction of surface charge topology based on the detected surface charge density on large surfaces is presented. This technique may be used for the study of surface charge morphology, electrostatics, triboelectric constants, and various other material properties for characterization and application purposes.

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Test bed for rotation-based triboelectric nanogenerators

Cited by 10 publications

References 10 publications

Film-Sponge-Coupled Triboelectric Nanogenerator with Enhanced Contact Area Based on Direct Ultraviolet Laser Ablation

Film-Sponge-Coupled Triboelectric Nanogenerator with Enhanced Contact Area Based on Direct Ultraviolet Laser Ablation

The Effect of an Aluminium Disc Rotator on Polyvinyl Chloride (PVC) Material using 360° Lateral Sliding Disc Triboelectric Generator (TEG)

Self-powered TENG probe for scanning surface charge distribution

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