scholarly journals Surface Engineering for Enhanced Triboelectric Nanogenerator

2021 ◽  
Vol 1 (1) ◽  
pp. 58-80
Author(s):  
Mervat Ibrahim ◽  
Jinxing Jiang ◽  
Zhen Wen ◽  
Xuhui Sun
Keyword(s):  
High Performance ◽  
Surface Engineering ◽  
Mechanical Energy ◽  
High Vacuum ◽  
Low Frequency ◽  
Triboelectric Nanogenerator ◽  
Output Performance ◽  
High Charge Density ◽  
Output Characteristics ◽  
High Output

Triboelectric nanogenerator (TENG) is the new technique that can convert low-frequency mechanical energy into effective electricity. As an energy collector, the pursuit of high output characteristics is understandable. Although high charge density has been achieved by working in high vacuum or charge pumping techniques, it remains challenging to obtain the high output performance directly in the atmosphere. Herein, surface-engineering of the triboelectric layer for enhancing output performance has been reviewed carefully. By constructing surface morphology or developing surface modification, high performance of TENGs is finally presented in the review.

scholarly journals Boosting output performance of sliding mode triboelectric nanogenerator by charge space-accumulation effect

2020 ◽  
Vol 11 (1) ◽  
Author(s):  
Wencong He ◽  
Wenlin Liu ◽  
Jie Chen ◽  
Zhao Wang ◽  
Yike Liu ◽  
...  
Keyword(s):  
Charge Density ◽  
Sliding Mode ◽  
Mechanical Energy ◽  
Low Frequency ◽  
Deep Understanding ◽  
Triboelectric Nanogenerator ◽  
Ambient Conditions ◽  
Output Performance ◽  
Charge Space ◽  
Air Breakdown

Abstract The sliding mode triboelectric nanogenerator (S-TENG) is an effective technology for in-plane low-frequency mechanical energy harvesting. However, as surface modification of tribo-materials and charge excitation strategies are not well applicable for this mode, output performance promotion of S-TENG has no breakthrough recently. Herein, we propose a new strategy by designing shielding layer and alternative blank-tribo-area enabled charge space-accumulation (CSA) for enormously improving the charge density of S-TENG. It is found that the shielding layer prevents the air breakdown on the interface of tribo-layers effectively and the blank-tribo-area with charge dissipation on its surface of tribo-material promotes charge accumulation. The charge space-accumulation mechanism is analyzed theoretically and verified by experiments. The charge density of CSA-S-TENG achieves a 2.3 fold enhancement (1.63 mC m−2) of normal S-TENG in ambient conditions. This work provides a deep understanding of the working mechanism of S-TENG and an effective strategy for promoting its output performance.

scholarly journals High performance floating self-excited sliding triboelectric nanogenerator for micro mechanical energy harvesting

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Li Long ◽  
Wenlin Liu ◽  
Zhao Wang ◽  
Wencong He ◽  
Gui Li ◽  
...  
Keyword(s):  
Charge Density ◽  
High Performance ◽  
Mechanical Energy ◽  
Triboelectric Nanogenerator ◽  
Maximum Charge ◽  
Charge Decay ◽  
Air Breakdown ◽  
Weak Wind ◽  
Breakdown Model ◽  
High Output

AbstractNon-contact triboelectric nanogenerator (TENG) enabled for both high conversion efficiency and durability is appropriate to harvest random micro energy owing to the advantage of low driving force. However, the low output (<10 μC m−2) of non-contact TENG caused by the drastic charge decay limits its application. Here, we propose a floating self-excited sliding TENG (FSS-TENG) by a self-excited amplification between rotator and stator to achieve self-increased charge density, and the air breakdown model of non-contact TENG is given for a maximum charge density. The charge density up to 71.53 μC m−2 is achieved, 5.46 times as that of the traditional floating TENG. Besides, the high output enables it to continuously power small electronics at 3 m s−1 weak wind. This work provides an effective strategy to address the low output of floating sliding TENG, and can be easily adapted to capture the varied micro mechanical energies anywhere.

Design Optimization of Soft‐Contact Freestanding Rotary Triboelectric Nanogenerator for High‐Output Performance

2021 ◽  
pp. 2102106
Author(s):  
Junhuan Chen ◽  
Xuelian Wei ◽  
Baocheng Wang ◽  
Ruonan Li ◽  
Yanggui Sun ◽  
...  
Keyword(s):  
Design Optimization ◽  
Triboelectric Nanogenerator ◽  
Soft Contact ◽  
Output Performance ◽  
High Output

Ultra High performance, lead free Bi2WO6: P(VDF-TrFE) based triboelectric nanogenerator for self-powered sensor and smart electronic applications

2022 ◽  
Author(s):  
Dhiraj Bharti ◽  
Sushmitha Veeralingam ◽  
Sushmee Badhulika
Keyword(s):  
Output Power ◽  
Power Supply ◽  
High Performance ◽  
Lead Free ◽  
Triboelectric Nanogenerator ◽  
High Output Power ◽  
Self Powered ◽  
Triboelectric Nanogenerators ◽  
High Output

Obtaining sustainable, high output power supply from triboelectric nanogenerators still remains a major issue which restricts their widespread use in self-powered electronic applications. In this work, an ultra-high performance, non-toxic,...

An airtight-cavity-structural triboelectric nanogenerator-based insole for high performance biomechanical energy harvesting

Nanoscale ◽  
2019 ◽  
Vol 11 (14) ◽  
pp. 6802-6809 ◽  
Author(s):  
Zhiming Lin ◽  
Yufen Wu ◽  
Qiang He ◽  
ChenChen Sun ◽  
Endong Fan ◽  
...  
Keyword(s):  
Energy Harvesting ◽  
High Performance ◽  
Triboelectric Nanogenerator ◽  
Wearable Electronics ◽  
Human Energy ◽  
High Output

A waterproof, high-output and airtight-cavity-airbag structural insole based on a TENG is presented to harvest human energy for driving wearable electronics.

scholarly journals A constant current triboelectric nanogenerator arising from electrostatic breakdown

2019 ◽  
Vol 5 (4) ◽  
pp. eaav6437 ◽  
Author(s):  
Di Liu ◽  
Xing Yin ◽  
Hengyu Guo ◽  
Linglin Zhou ◽  
Xinyuan Li ◽  
...  
Keyword(s):  
Mechanical Energy ◽  
Constant Current ◽  
Triboelectric Nanogenerator ◽  
The Novel ◽  
Electrostatic Induction ◽  
Self Powered ◽  
Output Characteristics ◽  
Paradigm Shifting ◽  
The Internet Of Things

In situ conversion of mechanical energy into electricity is a feasible solution to satisfy the increasing power demand of the Internet of Things (IoTs). A triboelectric nanogenerator (TENG) is considered as a potential solution via building self-powered systems. Based on the triboelectrification effect and electrostatic induction, a conventional TENG with pulsed AC output characteristics always needs rectification and energy storage units to obtain a constant DC output to drive electronic devices. Here, we report a next-generation TENG, which realizes constant current (crest factor, ~1) output by coupling the triboelectrification effect and electrostatic breakdown. Meanwhile, a triboelectric charge density of 430 mC m−2 is attained, which is much higher than that of a conventional TENG limited by electrostatic breakdown. The novel DC-TENG is demonstrated to power electronics directly. Our findings not only promote the miniaturization of self-powered systems used in IoTs but also provide a paradigm-shifting technique to harvest mechanical energy.

scholarly journals A low-frequency hybrid energy harvester with high output performance

2015 ◽  
Vol 660 ◽  
pp. 012091
Author(s):  
Y Xia ◽  
W Liu ◽  
T Chen ◽  
Z Yang ◽  
P Wang ◽  
...  
Keyword(s):  
Energy Harvester ◽  
Low Frequency ◽  
Hybrid Energy ◽  
Output Performance ◽  
Hybrid Energy Harvester ◽  
High Output

scholarly journals Effects of Embedded TiO2−x Nanoparticles on Triboelectric Nanogenerator Performance

Micromachines ◽  
2018 ◽  
Vol 9 (8) ◽  
pp. 407 ◽  
Author(s):  
Hyun-Woo Park ◽  
Nghia Huynh ◽  
Wook Kim ◽  
Hee Hwang ◽  
Hyunmin Hong ◽  
...  
Keyword(s):  
Oxygen Vacancies ◽  
Weight Ratio ◽  
Triboelectric Nanogenerator ◽  
Pdms Layer ◽  
Power Sources ◽  
Pdms Surface ◽  
Output Performance ◽  
Leakage Characteristics ◽  
Triboelectric Nanogenerators ◽  
High Output

Triboelectric nanogenerators (TENGs) are used as self-power sources for various types of devices by converting external waves, wind, or other mechanical energies into electric power. However, obtaining a high-output performance is still of major concern for many applications. In this study, to enhance the output performance of polydimethylsiloxane (PDMS)-based TENGs, highly dielectric TiO2−x nanoparticles (NPs) were embedded as a function of weight ratio. TiO2−x NPs embedded in PDMS at 5% showed the highest output voltage and current. The improved output performance at 5% is strongly related to the change of oxygen vacancies on the PDMS surface, as well as the increased dielectric constant. Specifically, oxygen vacancies in the oxide nanoparticles are electrically positive charges, which is an important factor that can contribute to the exchange and trapping of electrons when driving a TENG. However, in TiO2−x NPs containing over 5%, the output performance was significantly degraded because of the increased leakage characteristics of the PDMS layer due to TiO2−x NPs aggregation, which formed an electron path.

Flexible Triboelectric Nanogenerator Based on Polyester Conductive Cloth for Biomechanical Energy Harvesting and Self-Powered Sensors

Nanoscale ◽  
2021 ◽  
Author(s):  
Junwei Zhao ◽  
Yujiang Wang ◽  
Xiaojiang Song ◽  
Anqi Zhou ◽  
Yunfei Ma ◽  
...  
Keyword(s):  
Energy Harvesting ◽  
Mechanical Energy ◽  
Low Frequency ◽  
Triboelectric Nanogenerator ◽  
Self Powered

As a new nanotechnology of mechanical energy harvesting and self-powered sensing, triboelectric nanogenerator (TENG) has been explored as a new path of using various low-frequency disordered mechanical energies in the...

Harvesting Low-Frequency (<5 Hz) Irregular Mechanical Energy: A Possible Killer Application of Triboelectric Nanogenerator

ACS Nano ◽  
2016 ◽  
Vol 10 (4) ◽  
pp. 4797-4805 ◽  
Author(s):  
Yunlong Zi ◽  
Hengyu Guo ◽  
Zhen Wen ◽  
Min-Hsin Yeh ◽  
Chenguo Hu ◽  
...  
Keyword(s):  
Mechanical Energy ◽  
Low Frequency ◽  
Triboelectric Nanogenerator
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