Bow-type bistable triboelectric nanogenerator for harvesting energy from low-frequency vibration

Tan, Debao; Zhou, Jiaxi; Wang, Kai; Xiao-ming, Zhao; Wang, Qiang; Xu, Daolin

doi:10.1016/j.nanoen.2021.106746

Cited by 63 publications

(26 citation statements)

References 60 publications

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“…As a new energy harvesting technology, the triboelectric nanogenerator (TENG) invented in 2012 has shown excellent advantages, such as its lightweight, simple structure, and extensive material [ 4 , 5 , 6 , 7 ]. In recent years, the TENG has been proven that can be used to harvest various environmental mechanical energies, such as wind energy [ 8 , 9 ], ocean energy [ 10 , 11 ], vibrational energy [ 12 , 13 ], and human kinetic energy [ 14 , 15 ]. However, the low efficiency of energy conversion limits the application of the TENG.…”

Section: Introductionmentioning

confidence: 99%

Self-Powered and Autonomous Vibrational Wake-Up System Based on Triboelectric Nanogenerators and MEMS Switch

Lin

Wang

et al. 2022

Sensors

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With the extensive application of wireless sensing nodes, the demand for sustainable energy in unattended environments is increasing. Here, we report a self-powered and autonomous vibrational wake-up system (SAVWS) based on triboelectric nanogenerators and micro-electromechanical system (MEMS) switches. The energy triboelectric nanogenerator (E-TENG) harvests vibration energy to power the wireless transmitter through a MEMS switch. The signal triboelectric nanogenerator (S-TENG) controls the state of the MEMS switch as a self-powered accelerometer and shows good linearity in the acceleration range of 1–4.5 m/s2 at 30 Hz with a sensitivity of about 14.6 V/(m/s2). When the acceleration increases, the S-TENG turns on the MEMS switch, and the wireless transmitter transmits an alarm signal with the energy from E-TENG, using only 0.64 mJ. Using TENGs simultaneously as an energy source and a sensor, the SAVWS provides a self-powered vibration monitoring solution for unattended environments and shows extensive applications and great promise in smart factories, autonomous driving, and the Internet of Things.

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Section: Introductionmentioning

confidence: 99%

Self-Powered and Autonomous Vibrational Wake-Up System Based on Triboelectric Nanogenerators and MEMS Switch

Lin

Wang

et al. 2022

Sensors

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“…With the continuous exploration of energy, the deepening of research level, and the enrichment of research content, a series of new energy technologies such as wind power generation, solar power generation, and controllable nuclear fusion have been studied. − However, when people try to find reliable and safe energy sources in the outside world, they ignore that humans themselves can be used as a natural energy source. , Hence, in order to solve this problem, more and more researchers continue to pay attention to the low-frequency energy that is closely related to human life and even neglected by human beings. Triboelectric nanogenerator (TENG) technology has been successfully used to harvest and harness this weak energy. − At the same time, compared with traditional energy sources, TENGs have the advantages of efficient utilization of low-frequency energy, diversity of materials, a high safety factor, and wide energy sources. − It can not only reduce environmental pollution but also alleviate the energy crisis to a large extent. , In addition, due to the increasing demand for wearable electronic devices, TENGs have great application prospects in human–computer interaction, electronic skin, and digital medicine …”

Section: Introductionmentioning

confidence: 99%

Superhydrophobic, Humidity-Resistant, and Flexible Triboelectric Nanogenerators for Biomechanical Energy Harvesting and Wearable Self-Powered Sensing

Shen

Wang

et al. 2022

ACS Appl. Nano Mater.

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Triboelectric nanogenerators (TENGs) as self-powered sensing devices have attracted extensive interest in the field of flexible wearable electronics. Endowing TENGs with excellent environmental adaptability and high sensitivity is considered to be one of the promising strategies to satisfy future intelligent electronic sensing devices. The interference of a humid environment and common bare electrode has been a great hindrance to the output performance of TENGs. In this paper, a core−shell superhydrophobic and flexible triboelectric nanogenerator (abbreviated as PP/AgH-TENG) was prepared based on a polydimethylsiloxane (PDMS) film surface modified with polytetrafluoroethylene (PTFE) particles as the triboelectric layer and AgNWs/PVA hydrogel as the electrode. The obtained PP/AgH-TENG (4 × 4 cm 2 area) can easily light about 360 commercial LED lights with a maximum power density of 3.07 W/m 2 by tapping. It is important that PP/AgH-TENG can overcome the effect of water molecules on charge transfer in a humid environment and quickly recover and maintain a high output. In addition, the bracelet made of PP/AgH-TENG can collect the mechanical energy generated by human movement, and these output performance curves clearly reflect the state of human movement. This research has great application potential in the field of intelligent wearable selfpowered sensing.

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“…The recent development of wearable electronic devices requires the lightweight and convenient energy charge and store processes. − Polymer-based triboelectric nanogenerators (TENGs) are highly promising candidate devices because of their advantages in structural diversity, shape variability, eco-friendliness, biocompatibility, and low cost. − Those TENGs are also expected to achieve high-voltage output signals, which can achieve self-powdering. − TENG technology can further collect the wasted mechanical energy in daily life and convert it into electrical energy, such as human motion, − wind energy, ,, flowing water, − friction energy, and vibration energy. − The collection can work in a wide frequency range and can continuously and reliably power many devices, , such as calculators, − small sensors, and other microelectronic devices. , …”

Section: Introductionmentioning

confidence: 99%

Auxetic Wearable Sensors Based on Flexible Triboelectric Polymers for Movement Monitoring

Xian

et al. 2022

ACS Appl. Polym. Mater.

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The methods to enhance the output voltage of triboelectric nanogenerators based on polymeric dielectric materials, such as building micro−nano structure and chemical modification, probably lower the structural uniformity of their devices and then decrease the performance stability because of stress aggregation. Here, we proposed a strategy based on auxetic structures for improving the triboelectric performance, which could concurrently uniformize the stress transfer due to their excellent friction properties. Using the negative Poisson's ratio (NPR) structure of the "I"-shaped structure and rotating polygon structure, we prepared the dielectric layers of polyvinylidene fluoride (PVDF) and copper with controllable Poisson's ratio from 0.84 to −1.51. Then, the finite element analysis proved that the auxetic NPR structure with tri-axial and tetra-axial symmetricity offered more uniform friction−force distribution and thus less fluctuation in a contact area than the "I"-shaped structure. We further designed triboelectric devices with polydimethylsiloxane (PDMS) deformation and triboelectric properties, and they showed that the triboelectric output voltage reached the maximum when their Poisson's ratio was close to 0, which was related to the minimal change in the contact area between the NPR layer and the PDMS layer. The devices were then inserted into wearable sports sensors, which could monitor the movement at different places of bodies and also have great potential in sensorium smart socks and brake sensors.

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Bow-type bistable triboelectric nanogenerator for harvesting energy from low-frequency vibration

Cited by 63 publications

References 60 publications

Self-Powered and Autonomous Vibrational Wake-Up System Based on Triboelectric Nanogenerators and MEMS Switch

Self-Powered and Autonomous Vibrational Wake-Up System Based on Triboelectric Nanogenerators and MEMS Switch

Superhydrophobic, Humidity-Resistant, and Flexible Triboelectric Nanogenerators for Biomechanical Energy Harvesting and Wearable Self-Powered Sensing

Auxetic Wearable Sensors Based on Flexible Triboelectric Polymers for Movement Monitoring

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