Ultra-stability high-voltage triboelectric nanogenerator designed by ternary dielectric triboelectrification with partial soft-contact and non-contact mode

Li, Qianying; Liu, Wenlin; Yang, Hongmei; He, Wencong; Li, Long; Wu, Mengbo; Zhang, Xuemei; Xi, Yunfei; Hu, Chenguo; Wang, Zhong Lin

doi:10.1016/j.nanoen.2021.106585

Cited by 83 publications

(56 citation statements)

References 40 publications

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“…Various TENGs, according to their working mechanism and output signal type, have been roughly divided into two categories: (I) Based on the coupling of triboelectrification and electrostatic induction, the TENG generates an alternating current (AC-TENG) [22][23][24][25][26]; (II) Based on the coupling of triboelectrification and air-breakdown, the TENG produces a direct current (DC-TENG) [27][28][29][30]. Among them, the DC-TENG can supply power directly to electronic devices without rectifier circuits and energy storage units.…”

Section: Introductionmentioning

confidence: 99%

High Output Performance and Ultra-Durable DC Output for Triboelectric Nanogenerator Inspired by Primary Cell

et al. 2022

Nano-Micro Lett.

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Triboelectric nanogenerator (TENG) is regarded as an effective strategy to convert environment mechanical energy into electricity to meet the distributed energy demand of large number of sensors in the Internet of Things (IoTs). Although TENG based on the coupling of triboelectrification and air-breakdown achieves a large direct current (DC) output, material abrasion is a bottleneck for its applications. Here, inspired by primary cell and its DC signal output characteristics, we propose a novel primary cell structure TENG (PC-TENG) based on contact electrification and electrostatic induction, which has multiple working modes, including contact separation mode, freestanding mode and rotation mode. The PC-TENG produces DC output and operates at low surface contact force. It has an ideal effective charge density (1.02 mC m−2). Meanwhile, the PC-TENG shows a superior durability with 99% initial output after 100,000 operating cycles. Due to its excellent output performance and durability, a variety of commercial electronic devices are powered by PC-TENG via harvesting wind energy. This work offers a facile and ideal scheme for enhancing the electrical output performance of DC-TENG at low surface contact force and shows a great potential for the energy harvesting applications in IoTs.

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Section: Introductionmentioning

confidence: 99%

High Output Performance and Ultra-Durable DC Output for Triboelectric Nanogenerator Inspired by Primary Cell

et al. 2022

Nano-Micro Lett.

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“…Two polyester furs are installed between two adjacent electrodes in the stator as a soft-contact dielectric layer. 24 The M-TENG consists of a stator and a rotator with The specific conversion process is explained in detail later. In the following discussion, we compare the performance of the M-TENG under FBR-Z and VMC-Z, and explore the matching mechanism of the SCER-TENG with different charge excitation strategies by establishing circuit models and theoretical calculations.…”

Section: Structure and Working Principle Of The Scer-tengmentioning

confidence: 99%

“…Based on the coupling effect of triboelectrification and electrostatic induction, the TENG converts distributed ambient mechanical energy into electrical energy that has been widely used in blue energy harvesters, 20,21 self-powered sensors, 22 micro-nano power sources, 23 and high-voltage sources. 24,25 In general, the practical application of the TENG depends on its output power, which is determined by its surface charges. Various methods to increase the surface charges of a TENG have been proposed, such as material optimization, 26−28 surface physical/chemical modification, 29,30 and ion injection, 31 etc.…”

Section: Introductionmentioning

confidence: 99%

Matching Mechanism of Charge Excitation Circuit for Boosting Performance of a Rotary Triboelectric Nanogenerator

et al. 2022

ACS Appl. Mater. Interfaces

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The triboelectric nanogenerator (TENG) as an ideal low-frequency mechanical energy harvester has received extensive attention, while low output charge density limits its application. A charge excitation strategy is one of the techniques to effectively improve the surface charge density of the TENG. However, there is little in-depth research on the matching factors between the TENG and excitation circuit. Herein, a soft-contact charge excitation rotary TENG (SCER-TENG) is developed to explore the matching mechanism of different charge excitation strategies. The total output power transferred by the voltage-multiplying circuit (VMC) is 2.13 times that of the full-wave bridge rectifier, which effectively improves the output performance of the SCER-TENG. Moreover, through the established capacitor model and the theoretically calculated maximum output charge of the SCER-TENG with VMC and Zener diodes (VMC-Z), it is found that the output of the Main TENG is mainly affected by capacitors and Zener diodes. The theories have been verified by experiments. After optimization, the output charge of the Main TENG with VMC-Z (1.54 μC) is 3850% higher than that without excitation (0.04 μC). The SCER-TENG successfully harvests low-speed (2.5 m s–1) wind energy to form a self-powered system. This work has crucial instructive implications for using charge excitation strategies to improve the performance of the rotary TENG.

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“…A series of methods were investigated to increase the output performance of TENGs, such as material selection ( Wang, 2013 ), surface roughness increment ( Fan et al, 2012b ; Zhang et al, 2015 ), surface charge injection ( Wang et al, 2014a ; Wang et al, 2014b ), charge pump method ( Cheng et al, 2018 ), step-down circuit ( Qin et al, 2018 ), and multiple channel method ( Zhang et al, 2022a ). As a result, TENG’s output voltage and peak current have been increased to more than ten thousand volts ( Li et al, 2021 ) and hundreds of milliamperes ( Cheng et al, 2013 ), and its output charge density is up to millicoulombs per square meter ( Zhang et al, 2022a ). As the output has been ameliorated to a very high level, TENGs are widely applied to establish self-powered nanodevices or nanosystems.…”

Section: Introductionmentioning

confidence: 99%

Enhancing Drug Utilization Efficiency via Dish-Structured Triboelectric Nanogenerator

Deng²,

He³

et al. 2022

Front. Bioeng. Biotechnol.

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Due to the finding of severe side effects and low therapeutic efficacy with cancer chemotherapy, there still remains a great challenge to benefit patients with curative effect. In this work, we designed a self-powered drug delivery system comprising a current source derived from the disk TENG (D-TENG) and a pair of Au electrodes. Thus, cells seeded within the electrode gap could be stimulated by the current followed by D-TENG`s work. Under the rotation frequency of about 7.4 Hz, the peak output current and voltage of the D-TENG reached 3.7 μA and 135 V and achieved an average of 2.8 μA of output current. Furthermore, the D-TENG also showed its good stability to output steady current in a long-term condition. When applying the electric stimulation by this self-powered drug delivery system, a chemotherapy drug, doxorubicin (DOX), had significant uptake by cancer cells. Therefore, utilizing a novel TENG device as a part of chemotherapy would provide a new opportunity in future disease treatment.

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Ultra-stability high-voltage triboelectric nanogenerator designed by ternary dielectric triboelectrification with partial soft-contact and non-contact mode

Cited by 83 publications

References 40 publications

High Output Performance and Ultra-Durable DC Output for Triboelectric Nanogenerator Inspired by Primary Cell

High Output Performance and Ultra-Durable DC Output for Triboelectric Nanogenerator Inspired by Primary Cell

Matching Mechanism of Charge Excitation Circuit for Boosting Performance of a Rotary Triboelectric Nanogenerator

Enhancing Drug Utilization Efficiency via Dish-Structured Triboelectric Nanogenerator

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