Human body IoT systems based on the triboelectrification effect: energy harvesting, sensing, interfacing and communication

Abstract

In recent years, the internet of things (IoT) has been progressing rapidly with the integration of technologies in various fields. At this stage, triboelectric nanogenerator (TENG) technology based on the...

Flexible Lead-Free Piezoelectric Ba0.94Sr0.06Sn0.09Ti0.91O3/PDMS Composite for Self-Powered Human Motion Monitoring

“…With the rapid development of biomedical and wearable sensors, the monitoring of physiological information related to human healthcare, including respiration [ 1 ], heartbeat [ 2 ], pulse [ 3 ] and behavioral activities [ 4 , 5 , 6 ], has received widespread attention. So far, many different working principles have been reported for physiological signal monitoring [ 7 , 8 , 9 , 10 , 11 , 12 , 13 , 14 , 15 , 16 , 17 , 18 ] and good progress has been made. Compared with other existing soft devices based on piezoresistive [ 9 , 10 , 11 ], capacitive [ 12 ], triboelectric [ 13 , 14 , 15 , 16 ] or magnetoelastic effects [ 17 ], piezoelectric devices have received great interest in the field of flexible wearable electronics due to their simple structure, efficient electromechanical coupling and self-powered characteristics [ 19 , 20 ].…”

“…So far, many different working principles have been reported for physiological signal monitoring [ 7 , 8 , 9 , 10 , 11 , 12 , 13 , 14 , 15 , 16 , 17 , 18 ] and good progress has been made. Compared with other existing soft devices based on piezoresistive [ 9 , 10 , 11 ], capacitive [ 12 ], triboelectric [ 13 , 14 , 15 , 16 ] or magnetoelastic effects [ 17 ], piezoelectric devices have received great interest in the field of flexible wearable electronics due to their simple structure, efficient electromechanical coupling and self-powered characteristics [ 19 , 20 ]. Currently, research on flexible piezoelectric materials has flourished, such as zinc oxide (ZnO) [ 21 , 22 ], poly(vinylidene fluoride) (PVDF) [ 23 , 24 ] and its copolymers [ 25 , 26 ].…”

3D nanocrystalline metal–organic framework materials for the improved output performance of triboelectric nanogenerators

“…In recent years, triboelectric nanogenerators (TENGs) have received considerable attention because they can reduce the energy loss of sensors and wearable power supplies, promoting the rapid development of self-powered devices. [1][2][3][4] Compared with the traditional external fixed energy devices, TENGs with lightweight and easily manufacturable characteristics based on contact electrification and electrostatic induction can effectively convert low-frequency mechanical energy (human movement, wind, and raindrops) in the environment into electrical energy. [5][6][7][8][9][10] However, their low output power density seriously hinders the wide application of TENGs.…”

Energy Storage Triboelectric Nanogenerator Based on Ratchet Mechanism for Random Ocean Energy Harvesting

“…In 2012, the triboelectric nanogenerator (TENG) for harvesting mechanical energy in the environment has been proposed by Wang’s group . Based on the coupling effect of contact electrification and electrostatic induction, TENG is a revolutionary power conversion technology. , In recent years, TENG has become a research hotspot due to its various advantages, such as a wide range of materials, diverse working modes, and low cost. , Meanwhile, TENGs with various mechanical structures based on different working modes have been well applied in the collection of wave energy, , wind energy, − biomechanical energy, , and vibration energy. − The application of TENG in harvesting ocean energy is very promising. It not only has a simple structure and great design flexibility but also has high economic benefits.…”

“… 18 , 19 In recent years, TENG has become a research hotspot due to its various advantages, such as a wide range of materials, diverse working modes, and low cost. 20 , 21 Meanwhile, TENGs with various mechanical structures based on different working modes have been well applied in the collection of wave energy, 22 , 23 wind energy, 24 − 27 biomechanical energy, 28 , 29 and vibration energy. 30 − 32 The application of TENG in harvesting ocean energy is very promising.…”