scholarly journals Recent developments of hybrid piezo-triboelectric nanogenerators for flexible sensors and energy harvesters

2021 ◽  
Author(s):  
Jin Zhang ◽  
Yilin He ◽  
Cyrille Boyer ◽  
Kourosh Kalantar-Zadeh ◽  
Shuhua Peng ◽  
...  
Keyword(s):  
Flexible Sensors ◽  
Energy Harvesters ◽  
New Class ◽  
Recent Developments ◽  
Self Powered ◽  
Triboelectric Nanogenerators ◽  
Power Needs

Hybrid piezo-triboelectric nanogenerators constitute a new class of self-powered systems that exploit the synergy of piezoelectric and triboelectric mechanisms to address the energy and power needs for portable and wearable...

scholarly journals Recent Advances in Self-Powered Piezoelectric and Triboelectric Sensors: From Material and Structure Design to Frontier Applications of Artificial Intelligence

Sensors ◽  
2021 ◽  
Vol 21 (24) ◽  
pp. 8422
Author(s):  
Zetian Yang ◽  
Zhongtai Zhu ◽  
Zixuan Chen ◽  
Mingjia Liu ◽  
Binbin Zhao ◽  
...  
Keyword(s):  
Artificial Intelligence ◽  
Material Design ◽  
Structure Design ◽  
Flexible Sensors ◽  
Limited Life ◽  
Self Powered ◽  
Triboelectric Nanogenerators ◽  
Application Fields ◽  
The Internet Of Things ◽  
Development Prospects

The development of artificial intelligence and the Internet of things has motivated extensive research on self-powered flexible sensors. The conventional sensor must be powered by a battery device, while innovative self-powered sensors can provide power for the sensing device. Self-powered flexible sensors can have higher mobility, wider distribution, and even wireless operation, while solving the problem of the limited life of the battery so that it can be continuously operated and widely utilized. In recent years, the studies on piezoelectric nanogenerators (PENGs) and triboelectric nanogenerators (TENGs) have mainly concentrated on self-powered flexible sensors. Self-powered flexible sensors based on PENGs and TENGs have been reported as sensing devices in many application fields, such as human health monitoring, environmental monitoring, wearable devices, electronic skin, human–machine interfaces, robots, and intelligent transportation and cities. This review summarizes the development process of the sensor in terms of material design and structural optimization, as well as introduces its frontier applications in related fields. We also look forward to the development prospects and future of self-powered flexible sensors.

Recent Progress on Energy Harvesters for Biomedical Applications

2021 ◽  
pp. 2130010
Author(s):  
Akshpreet Kaur ◽  
Gaurav Sapra ◽  
Ankur Gupta
Keyword(s):  
Biomedical Applications ◽  
Recent Progress ◽  
Energy Conversion Efficiency ◽  
Energy Harvesters ◽  
Energy Demands ◽  
Medical Electronic ◽  
Self Powered ◽  
Biomedical Electronics ◽  
Triboelectric Nanogenerators ◽  
Wearable Medical

Energy harvesting devices have emerged as a promising technology to not only meet global energy demands but also power biomedical electronics. The dramatic advancement in self-powered biomedical electronics used for monitoring and treatment of severe diseases is part of a paradigm shift that is on the horizon. The review paper highlights recent progress on energy harvesters for scavenging energy to realize self-powered systems. The emphasis is mainly on piezoelectric and triboelectric nanogenerators addressing the basic operating principle, electrical model, design techniques, newly developed materials and their performance as well as associated typical applications. Herein, piezoelectric devices have been compared on basis of their materials, energy conversion efficiency, piezoelectric coefficient and power harvesting circuit. In addition, the recent advances of hybrid nanogenerators in terms of its biomedical applications are also highlighted. Finally, the conclusions and future prospects towards self-powered systems for implantable and wearable medical electronic devices are discussed for effective health monitoring, bio-sensing and clinical therapy.

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 A High Sensitivity Self-Powered Wind Speed Sensor Based on Triboelectric Nanogenerators (TENGs)

Sensors ◽  
2021 ◽  
Vol 21 (9) ◽  
pp. 2951
Author(s):  
Yangming Liu ◽  
Jialin Liu ◽  
Lufeng Che
Keyword(s):  
Wind Speed ◽  
High Sensitivity ◽  
Electrical Signal ◽  
Geometrical Parameters ◽  
Sensor Systems ◽  
Speed Sensor ◽  
Speed Range ◽  
Self Powered ◽  
Triboelectric Nanogenerators ◽  
Application Prospects

Triboelectric nanogenerators (TENGs) have excellent properties in harvesting tiny environmental energy and self-powered sensor systems with extensive application prospects. Here, we report a high sensitivity self-powered wind speed sensor based on triboelectric nanogenerators (TENGs). The sensor consists of the upper and lower two identical TENGs. The output electrical signal of each TENG can be used to detect wind speed so that we can make sure that the measurement is correct by two TENGs. We study the influence of different geometrical parameters on its sensitivity and then select a set of parameters with a relatively good output electrical signal. The sensitivity of the wind speed sensor with this set of parameters is 1.79 μA/(m/s) under a wind speed range from 15 m/s to 25 m/s. The sensor can light 50 LEDs at the wind speed of 15 m/s. This work not only advances the development of self-powered wind sensor systems but also promotes the application of wind speed sensing.

Enhancement of self-powered humidity sensing of graphene oxide–based triboelectric nanogenerators by addition of graphene oxide nanoribbons

2021 ◽  
Vol 188 (8) ◽  
Author(s):  
Faezeh Ejehi ◽  
Raheleh Mohammadpour ◽  
Elham Asadian ◽  
Somayeh Fardindoost ◽  
Pezhman Sasanpour
Keyword(s):  
Graphene Oxide ◽  
Humidity Sensing ◽  
Graphene Oxide Nanoribbons ◽  
Self Powered ◽  
Triboelectric Nanogenerators

Triboelectric Nanogenerators for Self‐Powered Wound Healing

2021 ◽  
pp. 2100975
Author(s):  
Xiao Xiao ◽  
Xiao Xiao ◽  
Ardo Nashalian ◽  
Alberto Libanori ◽  
Yunsheng Fang ◽  
...  
Keyword(s):  
Wound Healing ◽  
Self Powered ◽  
Triboelectric Nanogenerators

scholarly journals Power Density Improvement of Piezoelectric Energy Harvesters via a Novel Hybridization Scheme with Electromagnetic Transduction

Micromachines ◽  
2021 ◽  
Vol 12 (7) ◽  
pp. 803
Author(s):  
Zhongjie Li ◽  
Chuanfu Xin ◽  
Yan Peng ◽  
Min Wang ◽  
Jun Luo ◽  
...  
Keyword(s):  
Power Density ◽  
Output Power ◽  
Energy Harvester ◽  
Hybrid Energy ◽  
Energy Harvesters ◽  
Piezoelectric Patch ◽  
Piezoelectric Energy ◽  
Electromagnetic Transduction ◽  
Self Powered ◽  
Power Densities

A novel hybridization scheme is proposed with electromagnetic transduction to improve the power density of piezoelectric energy harvester (PEH) in this paper. Based on the basic cantilever piezoelectric energy harvester (BC-PEH) composed of a mass block, a piezoelectric patch, and a cantilever beam, we replaced the mass block by a magnet array and added a coil array to form the hybrid energy harvester. To enhance the output power of the electromagnetic energy harvester (EMEH), we utilized an alternating magnet array. Then, to compare the power density of the hybrid harvester and BC-PEH, the experiments of output power were conducted. According to the experimental results, the power densities of the hybrid harvester and BC-PEH are, respectively, 3.53 mW/cm3 and 5.14 μW/cm3 under the conditions of 18.6 Hz and 0.3 g. Therefore, the power density of the hybrid harvester is 686 times as high as that of the BC-PEH, which verified the power density improvement of PEH via a hybridization scheme with EMEH. Additionally, the hybrid harvester exhibits better performance for charging capacitors, such as charging a 2.2 mF capacitor to 8 V within 17 s. It is of great significance to further develop self-powered devices.

Diatom Bio-Silica and Cellulose Nanofibril for Bio-Triboelectric Nanogenerators and Self-Powered Breath Monitoring Masks

2020 ◽  
Author(s):  
Araz Rajabi-Abhari ◽  
Jong-Nam Kim ◽  
Jeehee Lee ◽  
Rassoul Tabassian ◽  
Manmatha Mahato ◽  
...  
Keyword(s):  
Cellulose Nanofibril ◽  
Breath Monitoring ◽  
Self Powered ◽  
Triboelectric Nanogenerators

Performance analysis of a lever piezoelectric energy harvester for roadway applications

2021 ◽  
pp. 1045389X2110014
Author(s):  
Guangya Ding ◽  
Hongjun Luo ◽  
Jun Wang ◽  
Guohui Yuan
Keyword(s):  
Output Power ◽  
Energy Harvester ◽  
Open Circuit ◽  
Traffic Load ◽  
Energy Harvesters ◽  
Speed Sensor ◽  
Piezoelectric Energy ◽  
Optimal Load ◽  
Self Powered ◽  
Output Characteristics

A novel lever piezoelectric energy harvester (LPEH) was designed for installation in an actual roadway for energy harvesting. The model incorporates a lever module that amplifies the applied traffic load and transmits it to the piezoelectric ceramic. To observe the piezoelectric growth benefits of the optimized LPEH structure, the output characteristics and durability of two energy harvesters, the LPEH and a piezoelectric energy harvester (PEH) without a lever, were measured and compared by carrying out piezoelectric performance tests and traffic model experiments. Under the same loading condition, the open circuit voltages of the LPEH and PEH were 20.6 and 11.7 V, respectively, which represents a 76% voltage increase for the LPEH compared to the PEH. The output power of the LPEH was 21.51 mW at the optimal load, which was three times higher than that of the PEH (7.45 mW). The output power was linearly dependent on frequency and load, implying the potential application of the module as a self-powered speed sensor. When tested during 300,000 loading cycles, the LPEH still exhibited stable structural performance and durability.

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