scholarly journals Triboelectric nanogenerator based on Teflon/vitamin B1 powder for self-powered humidity sensing

2020 ◽  
Vol 11 ◽  
pp. 1394-1401
Author(s):  
Liangyi Zhang ◽  
Huan Li ◽  
Yiyuan Xie ◽  
Jing Guo ◽  
Zhiyuan Zhu
Keyword(s):  
Relative Humidity ◽  
Mechanical Energy ◽  
Vitamin B1 ◽  
Cost Effective ◽  
Electrical Energy ◽  
Open Circuit ◽  
Triboelectric Nanogenerator ◽  
Cost Effective Method ◽  
Self Powered ◽  
Triboelectric Nanogenerators

Recently, there has been growing interest in triboelectric nanogenerators (TENGs) that can effectively convert various forms of mechanical energy input into electrical energy. In the present study, a novel Teflon/vitamin B1 powder based triboelectric nanogenerator (TVB-TENG) is proposed. Paper is utilized as a supporting platform for triboelectrification between a commercial Teflon tape and vitamin B1 powder. The measured open-circuit voltage was approximately 340 V. The TVB-TENG can be applied as a humidity sensor and exhibits a linear and reversible response to the relative humidity of the environment. Moreover, the change in relative humidity is also indicated by the change in luminosity of a set of light-emitting diodes (LEDs) integrated in the TVB-TENG system. The TVB-TENG proposed in this study illustrates a cost-effective method for portable power supply and sensing devices.

scholarly journals Recent Progress in Self-Powered Sensors Based on Triboelectric Nanogenerators

Sensors ◽  
2021 ◽  
Vol 21 (21) ◽  
pp. 7129
Author(s):  
Junpeng Wu ◽  
Yang Zheng ◽  
Xiaoyi Li
Keyword(s):  
Mechanical Energy ◽  
Rapid Development ◽  
Electrical Energy ◽  
Displacement Current ◽  
Triboelectric Nanogenerator ◽  
Energy Harvesters ◽  
The Future ◽  
Quantitative Analysis Method ◽  
Self Powered ◽  
Triboelectric Nanogenerators

The emergence of the Internet of Things (IoT) has subverted people’s lives, causing the rapid development of sensor technologies. However, traditional sensor energy sources, like batteries, suffer from the pollution problem and the limited lifetime for powering widely implemented electronics or sensors. Therefore, it is essential to obtain self-powered sensors integrated with renewable energy harvesters. The triboelectric nanogenerator (TENG), which can convert the surrounding mechanical energy into electrical energy based on the surface triboelectrification effect, was born of this background. This paper systematically introduces the working principle of the TENG-based self-powered sensor, including the triboelectrification effect, Maxwell’s displacement current, and quantitative analysis method. Meanwhile, this paper also reviews the recent application of TENG in different fields and summarizes the future development and current problems of TENG. We believe that there will be a rise of TENG-based self-powered sensors in the future.

scholarly journals Mesoporous Highly-Deformable Composite Polymer for a Gapless Triboelectric Nanogenerator via a One-Step Metal Oxidation Process

Micromachines ◽  
2018 ◽  
Vol 9 (12) ◽  
pp. 656 ◽  
Author(s):  
Hee Hwang ◽  
Younghoon Lee ◽  
Choongyeop Lee ◽  
Youngsuk Nam ◽  
Jinhyoung Park ◽  
...  
Keyword(s):  
Large Scale ◽  
Cost Effective ◽  
Triboelectric Nanogenerator ◽  
Pressure Sensitivity ◽  
Composite Polymer ◽  
Pdms Film ◽  
One Step ◽  
Self Powered ◽  
Triboelectric Nanogenerators ◽  
Flake Structure

The oxidation of metal microparticles (MPs) in a polymer film yields a mesoporous highly-deformable composite polymer for enhancing performance and creating a gapless structure of triboelectric nanogenerators (TENGs). This is a one-step scalable synthesis for developing large-scale, cost-effective, and light-weight mesoporous polymer composites. We demonstrate mesoporous aluminum oxide (Al2O3) polydimethylsiloxane (PDMS) composites with a nano-flake structure on the surface of Al2O3 MPs in pores. The porosity of mesoporous Al2O3-PDMS films reaches 71.35% as the concentration of Al MPs increases to 15%. As a result, the film capacitance is enhanced 1.8 times, and TENG output performance is 6.67-times greater at 33.3 kPa and 4 Hz. The pressure sensitivity of 6.71 V/kPa and 0.18 μA/kPa is determined under the pressure range of 5.5–33.3 kPa. Based on these structures, we apply mesoporous Al2O3-PDMS film to a gapless TENG structure and obtain a linear pressure sensitivity of 1.00 V/kPa and 0.02 μA/kPa, respectively. Finally, we demonstrate self-powered safety cushion sensors for monitoring human sitting position by using gapless TENGs, which are developed with a large-scale and highly-deformable mesoporous Al2O3-PDMS film with dimensions of 6 × 5 pixels (33 × 27 cm2).

scholarly journals Rolling Spherical Triboelectric Nanogenerators (RS-TENG) under Low-Frequency Ocean Wave Action

2021 ◽  
Vol 10 (1) ◽  
pp. 5
Author(s):  
Yuzhou Wang ◽  
Ali Matin Nazar ◽  
Jiajun Wang ◽  
Kequan Xia ◽  
Delin Wang ◽  
...  
Keyword(s):  
Mechanical Energy ◽  
Low Frequency ◽  
Electrical Energy ◽  
Ocean Waves ◽  
Open Circuit ◽  
Green Energy ◽  
Wave Action ◽  
Ocean Wave ◽  
Maximum Output ◽  
Triboelectric Nanogenerators

Triboelectric nanogenerators (TENG), which convert mechanical energy (such as ocean waves) from the surrounding environment into electrical energy, have been identified as a green energy alternative for addressing the environmental issues resulting from the use of traditional energy resources. In this experimental design, we propose rolling spherical triboelectric nanogenerators (RS-TENG) for collecting energy from low-frequency ocean wave action. Copper and aluminum were used to create a spherical frame which functions as the electrode. In addition, different sizes of spherical dielectric (SD1, SD2, SD3, and SD4) were developed in order to compare the dielectric effect on output performance. This design places several electrodes on each side of the spherical structure such that the dielectric layers are able to move with the slightest oscillation and generate electrical energy. The performance of the RS-TENG was experimentally investigated, with the results indicating that the spherical dielectrics significantly impact energy harvesting performance. On the other hand, the triboelectric materials (i.e., copper and aluminum) play a less important role. The copper RS-TENG with the largest spherical dielectrics is the most efficient structure, with a maximum output of 12.75 V in open-circuit and a peak power of approximately 455 nW.

scholarly journals Yo-Yo Inspired Triboelectric Nanogenerator

Energies ◽  
2021 ◽  
Vol 14 (7) ◽  
pp. 1798
Author(s):  
Deokjae Heo ◽  
Jihoon Chung ◽  
Gunsub Shin ◽  
Minhyeong Seok ◽  
Chanhee Lee ◽  
...  
Keyword(s):  
Dielectric Material ◽  
Mechanical Energy ◽  
Electrical Energy ◽  
Triboelectric Nanogenerator ◽  
Power Sources ◽  
Vast Number ◽  
Hand Motion ◽  
Energy Harvesters ◽  
Triboelectric Nanogenerators ◽  
And Function

Recently, as the demand for sustainable and renewable energy to power a large number of small electronics and sensors has increased, various mechanical energy harvesters such as electromagnetic, piezoelectric, and triboelectric generators have been highlighted because they have no environmental constraints to generate electricity and function as sustainable power sources. Among these generators, triboelectric nanogenerators (TENGs), which produce electrical energy via triboelectrification and electrostatic induction, are a promising energy harvesting technology that can utilize existing materials or the structure of existing commercial products. Considering the vast number of independent portable electronics used today, the development of hand-driven TENGs is important. There is great demand for TENG considering both commercial product-inspired designs, which are the merit of TENG itself, and the hand-driven type. However, relevant studies are still lacking, and therefore further studies in these areas are required. In this study, we developed a novel triboelectric nanogenerator (Y-TENG) inspired by the Yo-Yo that can produce a sustainable electric output by hand motion input. One generator of Y-TENG produced a maximum VOC of 10 V and an ICC of 0.7 μA. Peak/root mean square (RMS) voltage output-based quantitative analysis for the optimized number of blades and dielectric material was performed. The proposed Y-TENG was able to continuously light up three light-emitting diodes (LEDs) while the Y-TENG moved up and down.

scholarly journals Omni-directional wind-driven triboelectric nanogenerator with cross-shaped dielectric film

2021 ◽  
Vol 8 (1) ◽  
Author(s):  
Yoseop Shin ◽  
Sungjun Cho ◽  
Sejin Han ◽  
Gun Young Jung
Keyword(s):  
Wind Energy ◽  
Dielectric Film ◽  
Mechanical Energy ◽  
Short Circuit ◽  
Short Circuit Current ◽  
Open Circuit ◽  
Dielectric Films ◽  
Triboelectric Nanogenerator ◽  
External Power ◽  
Triboelectric Nanogenerators

AbstractTriboelectric nanogenerators (TENGs) are actively being researched and developed to become a new external power unit for various electronics and applications. Wind is proposed as a mechanical energy source to flutter the dielectric film in wind-driven TENGs as it is clean, abundant, ubiquitous, and sustainable. Herein, we propose a TENG structure with dielectric films bent in four directions to collect the wind energy supply from all directions, unlike the conventional wind-driven TENGs which can only harvest the wind energy from one direction. Aluminum (Al) layer was intercalated within the dielectric film to improve electrostatic induction, resulting in improved triboelectric performances. Maximum open-circuit voltage (Voc) of 233 V, short-circuit current (Isc) of 348 µA, and output power density of 46.1 W m− 2 at an external load of 1 MΩ under a wind speed of 9 m s− 1 were revealed, and it faithfully lit “LED” characters composed of 25 LEDs.

scholarly journals A Triboelectric Nanogenerator Based on Sodium Chloride Powder for Self-Powered Humidity Sensor

Nanomaterials ◽  
2021 ◽  
Vol 11 (10) ◽  
pp. 2657
Author(s):  
Zhuyu Ding ◽  
Ming Zou ◽  
Peng Yao ◽  
Zhiyuan Zhu ◽  
Li Fan
Keyword(s):  
Sodium Chloride ◽  
Humidity Sensor ◽  
Moisture Absorption ◽  
Mechanical Energy ◽  
Short Circuit ◽  
Open Circuit ◽  
Powder Layer ◽  
Triboelectric Nanogenerator ◽  
Ptfe Film ◽  
Self Powered

Recently, the research of distributed sensor networks based on triboelectric technology has attracted extensive attention. Here, we reported a new triboelectric nanogenerator based on sodium chloride powder (S-TENG) to obtain mechanical energy. The polytetrafluoroethylene (PTFE) film and sodium chloride powder layer serve as the triboelectric pair. After testing and calculation, the internal resistance of S-TENG is 30 MΩ, and the output power of S-TENG (size: 6 cm × 6 cm) can arrive at the maximum value (about 403.3 µW). Furthermore, the S-TENG can achieve the open circuit voltage (Voc) of 198 V and short-circuit current (Isc) of 6.66 µA, respectively. Moreover, owing to the moisture absorption of sodium chloride powder, the S-TENG device also has the function of the humidity sensor. This work proposed a functional TENG device, and it can promote the advancement of self-powered sensors based on the TENG devices.

Single-electrode triboelectric nanogenerators based on sponge-like porous PTFE thin films for mechanical energy harvesting and self-powered electronics

2017 ◽  
Vol 5 (24) ◽  
pp. 12252-12257 ◽  
Author(s):  
Meng Wang ◽  
Nan Zhang ◽  
Yingjie Tang ◽  
Heng Zhang ◽  
Chuan Ning ◽  
...  
Keyword(s):  
Thin Films ◽  
Energy Harvesting ◽  
Mechanical Energy ◽  
Triboelectric Nanogenerator ◽  
Self Powered ◽  
Triboelectric Nanogenerators

A single-electrode triboelectric nanogenerator (S-TENG) based on sponge-like porous polytetrafluoroethylene (PTFE) thin films was developed.

scholarly journals Triboelectric nanogenerator as self-powered impact sensor

2018 ◽  
Vol 148 ◽  
pp. 14005 ◽  
Author(s):  
Cristobal Garcia ◽  
Irina Trendafilova ◽  
Roberto Guzman de Villoria ◽  
Jose Sánchez del Río
Keyword(s):  
Polyvinylidene Fluoride ◽  
Mechanical Energy ◽  
Copper Electrode ◽  
Triboelectric Nanogenerator ◽  
Electric Response ◽  
Active Sensors ◽  
Ball Impact ◽  
Self Powered ◽  
Triboelectric Nanogenerators ◽  
The Impact

In recent years, triboelectric nanogenerators (TENGs) are used to harvest mechanical energy from ambient environment. These devices convert ambient energies (e.g. vibrations, breathing-driven, impacts or human body motions) into electricity based on the triboelectric effect. Furthermore, some TENGs can be successfully employed as self-power active sensors because the electric response from the TENG is proportional to the magnitude of the mechanical motion. This study report on the design and development of a novel triboelectric nanogenerator, and its potential application as self-powered impact sensor. To prepare the TENG device, membranes of polyvinylidene fluoride (PVDF) and polyvinylpyrrolidone (PVP) nanofibers are sandwiched between copper electrode films and wrapped on PET films. The TENG works based on the triboelectric interaction between the membranes of nanofibers. After the preparation, the TENGs are subjected to several impacts by the drop-ball impact test. The purpose of the experiment is to analyse if the electric response of TENG is dependent on the energy of the impact. The results of the experiment are presented and discussed. The main contributions of this work are the preparation of a novel nanogenerator (TENG) based on the triboelectric interaction between polyvinylidene fluoride and polyvinylpyrrolidone sub-micron polymer fibers and the investigation of its potential use as a self-powered impact sensor.

scholarly journals Triboelectric nanogenerators (TENG): Factors affecting its efficiency and applications

2021 ◽  
Vol 34 (2) ◽  
pp. 157-172
Author(s):  
Deepak Anand ◽  
Singh Sambyal ◽  
Rakesh Vaid
Keyword(s):  
Large Scale ◽  
Review Paper ◽  
Mechanical Energy ◽  
Electrical Energy ◽  
Wearable Electronics ◽  
Factors Affecting ◽  
Electrostatic Induction ◽  
Triboelectric Nanogenerators ◽  
Human Motions ◽  
Great Scope

The demand for energy is increasing tremendously with modernization of the technology and requires new sources of renewable energy. The triboelectric nanogenerators (TENG) are capable of harvesting ambient energy and converting it into electricity with the process of triboelectrification and electrostatic-induction. TENG can convert mechanical energy available in the form of vibrations, rotation, wind and human motions etc., into electrical energy there by developing a great scope for scavenging large scale energy. In this review paper, we have discussed various modes of operation of TENG along with the various factors contributing towards its efficiency and applications in wearable electronics.

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