Decoupling Contact and Rotary Triboelectrification vs Materials Property: Toward Understanding the Origin of Direct-Current Generation in TENG

Mariappan, Vimal Kumar; Krishnamoorthy, Karthikeyan; Pazhamalai, Parthiban; Manoharan, Sindhuja; Kim, Sang‐Jae

doi:10.1021/acsami.2c05610

Cited by 10 publications

(5 citation statements)

References 55 publications

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“…Later, as the friction layer material approaches the HAS-TENG again, electron return leads to the generation of a reverse signal (State IV). It is due to the repeated contact and separation process that the HAS-TENG generates continuous AC energy to power electronic devices. , Figure c shows the two directions of current output by the HAS-TENG during the contact-detachment process, confirming the generation of an AC electrical signal. A HAS-IL ionogel with an area of 2 cm × 2 cm was used to construct the HAS-TENG, and the electrical output performance of HAS-TENG was tested.…”

Section: Resultsmentioning

confidence: 69%

Highly Stretchable, Conductive, Adhesive, and Self-Powered Ionogel Sensor for Human Motion Detection, Signal Transmission, and Traffic Monitoring

Long,

Yuan,

Wang

2024

ACS Appl. Polym. Mater.

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Distinguished from traditional power sources such as batteries and capacitors, triboelectric nanogenerators have higher freedom of material selection and application flexibility and thus can fulfill the needs of flexible self-supplied electronic devices for advanced e-skin, human−computer interaction, and sensing. Here, a flexible (1100% of elongation at break, 0.2 MPa of breaking strength), highly conductive and adhesive (120 kPa), and environmentally stable ionogel was fabricated by introducing ionic liquids into a physical cross-linking polymer framework. The ionic liquid built a nonaqueous solvent system that made the ionogel environmentally stable. The introduction of amphiphilic ions both improved the mechanical properties of the polymer network and acted as ion channels to enhance the mobility of the ionic liquid and thus the electrical conductivity. Meanwhile, dynamic hydrogen bonding and dipole−dipole interaction made the ionogel have good adhesion properties. The ionogel can be applied as a flexible sensor for strain and pressure monitoring, and more importantly, the assembly of the ionogel with silicone rubber elastomer films into a sandwich-structured triboelectric nanogenerator enabled its application in scenarios such as self-supplied messaging and all-weather traffic monitoring, and it can also provide wired and wireless signal outputs with fast response (∼0.04 s). This work provides a direction for the application of gel-based electronic devices in the fields of intelligent human−computer interaction, information transfer, health monitoring, and traffic detection.

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Section: Resultsmentioning

confidence: 69%

Highly Stretchable, Conductive, Adhesive, and Self-Powered Ionogel Sensor for Human Motion Detection, Signal Transmission, and Traffic Monitoring

Long,

Yuan,

Wang

2024

ACS Appl. Polym. Mater.

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“…A rectifier is used to convert AC to direct current (DC), which results in a charge loss. Hence, the development of DC-TENG devices represents a prospective approach to enhancing output performance [85,86].…”

Section: Energy Conversion Efficiency Of Teng Devicesmentioning

confidence: 99%

Recent progress towards smart transportation systems using triboelectric nanogenerators

Nguyen,

Huynh,

Luu

et al. 2024

J. Phys. Energy

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The field of transportation plays a crucial role in the development of society. It is vital to establish a smart transportation system (STS) to increase the convenience and security of human life. The incorporation of artificial intelligence (AI) and the Internet of Things (IoT) into the traffic system has facilitated the emergence of innovative technologies like autonomous vehicles or unmanned aerial vehicles (UAVs), which contribute to the reduction of traffic accidents and the liberation of human driving time. However, this improvement involves the use of multiple sensor devices that need external power sources. As a result, pollution occurs, as do increases in manufacturing costs. Therefore, the quest to develop sustainable energy remains a formidable obstacle. Triboelectric nanogenerators (TENG) have emerged as a possible solution for addressing this problem owing to their exceptional performance and simple design. This article explores the use of TENG-based self-power sensors and their potential applications in the field of transportation. Furthermore, the data collected for this study might aid readers in enhancing their comprehension of the benefits linked to the use of these technologies to promote their creative ability.

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“…Contact electrification (CE) or triboelectric electrification, a ubiquitous physical phenomenon, can be seen everywhere in daily life, for example, combing hair, undressing clothes, and slapping hands [1,2]. Recently, there have been many in-depth studies on the mechanism of CE [3][4][5][6][7]. Wang's group [8] conducted a systematic investigation into the temperature-dependent real-time charge transfer in CE, using a triboelectric nanogenerator (TENG).…”

Section: Introductionmentioning

confidence: 99%

Electron Transfer in Contact Electrification under Different Atmospheres Packaged inside TENG

et al. 2023

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Contact electrification (CE), a common physical phenomenon, is worth discussing. However, there are few reports on the influence of atmosphere on CE, or on the performance of triboelectric nanogenerators (TENG), based on CE by encapsulating gas inside. Here, we propose physical processes of electron transfer to interpret the impact of the gaseous atmosphere on CE. An atmosphere-filled triboelectric nanogenerator (AF-TENG) encapsulated five different gas-components of air based on the vertical contact separation mode was prepared. The sensitivity (1.02 V·N−1) and the power density (9.63 μW·m−2) of the oxygen-atmosphere-filled AF-TENG were 229.03% and 157.81% higher than these (0.31 V·N−1 and 3.84 μW·m−2) of the nitrogen-atmosphere-filled AF-TENG. As the oxygen atom possesses more atomic energy levels than other atoms, this could act as a “bridge” for more electrons to directly transfer between the two materials. The device package under different atmospheres could not only strengthen understanding of CE and improve the performance of TENG, but also be potentially applicable to prevent and control unnecessary damage caused by static electricity.

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Decoupling Contact and Rotary Triboelectrification vs Materials Property: Toward Understanding the Origin of Direct-Current Generation in TENG

Cited by 10 publications

References 55 publications

Highly Stretchable, Conductive, Adhesive, and Self-Powered Ionogel Sensor for Human Motion Detection, Signal Transmission, and Traffic Monitoring

Highly Stretchable, Conductive, Adhesive, and Self-Powered Ionogel Sensor for Human Motion Detection, Signal Transmission, and Traffic Monitoring

Recent progress towards smart transportation systems using triboelectric nanogenerators

Electron Transfer in Contact Electrification under Different Atmospheres Packaged inside TENG

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