Recent Advances in Functional Fiber-Based Wearable Triboelectric Nanogenerators

Abstract

The quality of human life has improved thanks to the rapid development of wearable electronics. Previously, bulk structures were usually selected for the fabrication of high performance electronics, but these are not suitable for wearable electronics due to mobility limitations and comfortability. Fibrous material-based triboelectric nanogenerators (TENGs) can provide power to wearable electronics due to their advantages such as light weight, flexibility, stretchability, wearability, etc. In this work, various fiber materials, multiple fabrication methods, and fundamentals of TENGs are described. Moreover, recent advances in functional fiber-based wearable TENGs are introduced. Furthermore, the challenges to functional fiber-based TENGs are discussed, and possible solutions are suggested. Finally, the use of TENGs in hybrid devices is introduced for a broader introduction of fiber-based energy harvesting technologies.

Holistic and localized preparation methods for triboelectric sensors: principles, applications and perspectives

“…Therefore, evaluating the comprehensive situation of various preparation methods is the top priority for researchers. We have consulted a large number of articles and conducted in-depth evaluations on the preparation of triboelectric sensors using 3D printing [106][107][108][109][110][111][112], MEMS technology [41,[113][114][115][116][117][118][119][120], textile processes [64,[121][122][123][124][125][126][127], template-assisted methods [128][129][130][131][132][133][134], and materials synthesis methods [86,87,[135][136][137][138]. We have proposed evaluating the various benefits of various preparation processes, including material selection (figure 8 In terms of material selection, we evaluate it from the aspects of material type, material properties, ability to prepare microstructures, ability to doped, and sustainability; in terms of technical maturity, we mainly evaluate from application cases, standardization and normalization, process stability, technology iteration speed, and industry recognition; in terms of process difficulty, we mainly evaluate the batch production capacity, complexity of process flow, difficulty in parameter control, difficulty in material processing, and yield rate; in terms of preparation efficiency, we mainly evaluate production speed, automation level, batch production capacity, process cycle time, and material utilizat...…”

Polyimide Nanofiber-Based Triboelectric Nanogenerators Using Piezoelectric Carbon Nanotube@Barium Titanate Nanoparticles

“…The advent of wearable electronic devices has ushered in new requirements for the power supply. Traditional batteries, with their rigidity and bulky nature, are often ill-suited for integration with flexible electronics due to their limitations in adaptability and form factor. , Fortunately, the abundant mechanical energy generated by human motion can be harvested to power low-consumption devices, leading to the invention of the triboelectric nanogenerator (TENG) based on triboelectrification and electrostatic induction. − As a novel energy-harvesting technology, TENGs have garnered significant interest due to their light weight, portability, and durability characteristics, making them particularly well-suited for applications in flexible electronics and wearable devices. − However, the energy output levels of TENGs are currently relatively low, highlighting the need for continued research and development efforts to enhance their performance and efficiency …”

An Efficient Electrothermal Model of a Thermoelectric Converter for a Thermal Energy Harvesting Process Simulation and Electronic Circuits Powering

“…That is why energy harvesting from freely available environmental sources of energy has attracted great research attention [5][6][7][8]. Apart from very wellrecognized free energy sources being subjects of energy harvesting applications, like heat, light [9][10][11], mechanical vibrations [12][13][14], and electromagnetic background [15][16][17], hybrid harvesting systems are also being developed [18,19] and new solutions investigated as pyroelectric or triboelectric [20][21][22]. From the above-mentioned ambient energy sources, heat energy and thermoelectric conversion play increasingly important roles in the fields of energy harvesting and energy scavenging, although the heat-to-energy conversion efficiency still leaves much to be desired.…”