A flexible large-area triboelectric generator by low-cost roll-to-roll process for location-based monitoring

To meet the future need for clean and sustainable energies, there has been considerable interest in the development of triboelectric nanogenerators (TENGs) that scavenge waste mechanical energies. The performance of a TENG at the macroscale is determined by the multifaceted role of surface and interface properties at the nanoscale, whose understanding is critical for the future development of TENGs. Therefore, various protocols from the atomic to the macrolevel for fabrication and tuning of surfaces and interfaces are required to obtain the desired TENG performance. These protocols branch out into three categories: chemical engineering, physical engineering, and structural engineering. Chemical engineering is an affordable and optimal strategy for introducing more surface polarities and higher work functions for the improvement of charge transfer. Physical engineering includes the utilization of surface morphology control, and interlayer interactions, which can enhance the active interfacial area and electron transfer capacity. Structural engineering at the macroscale, which includes device and electrode design/modifications has a considerable effect on the performance of TENGs. Future challenges and promising research directions related to the construction of next‐generation TENG devices, taking into consideration “interfaces” are also presented.

show abstract

“…This power output is 4.67 times higher than the devices provided by electrostatic induction. [ 182 ]…”

Section: Controllable Synthetics Techniquesmentioning

confidence: 99%

Toward High‐Performance Triboelectric Nanogenerators by Engineering Interfaces at the Nanoscale: Looking into the Future Research Roadmap

Ahmed

Hassan

Pourrahimi

et al. 2020

Adv Materials Technologies

View full text Add to dashboard Cite

show abstract

“…[4,5] Recently,avariety of working mechanisms of NGs have been proposed, such as thermal energy, [6][7][8] solar energy, [9][10][11] chemical energy, [12,13] and mechanical energy. [14][15][16] Considering the ubiquitous and relatively stable mechanical energy of human motion or environmental vibration, NGs based on mechanical energy are promising candidates for self-poweredvibration sensors. [17][18][19] Recently,m echanical energy collectors based on the piezoelectric mechanism have been widely researched due to relatively stable output performances that are less affected by environmental factors.…”

Section: Introductionmentioning

confidence: 99%

Highly Reliable Real‐time Self‐powered Vibration Sensor Based on a Piezoelectric Nanogenerator

et al. 2018

View full text Add to dashboard Cite

With the diverse development in electronic devices, high cost, low reliability, and the need for battery power have been severe obstacles to restrict the wide application of sensors. In this work, we present a highly reliable, real‐time, self‐powered vibration sensor based on an enhanced piezoelectric nanogenerator (NG), which is heat resistant, waterproof, relatively low cost, and with a long lifetime. The enhanced piezoelectric NG is constructed into a double‐arched structure: the upper arched layer is the poly(vinylidene fluoride) (PVDF) film with designed optimum size, which can utilize the excellent piezoelectric potential of the d31 mode; the lower arched layer is the polydimethylsiloxane (PDMS) film covered by uniform trapezoidal microstructures and thereby increases the charge density of the piezoelectric NG. The piezoelectric NG output voltage with the double‐arched structure increased by 35.1 % upon applying a mechanical force of 5 N. Relating to improved steady voltage output performance, the enhanced piezoelectric NG was used as the sensitive element of a sensor with sensitivity of 2.21 V g−1 and linearity error of 5.91 % under a vibration amplitude of 6 mm. Moreover, the sensor not only exhibited stable repeatability and stability over long times, but it also steadily produced output performances after soaking in water temperatures up to 70 °C. Therefore, the highly reliable self‐powered vibration sensor presents prominent prospect for future application.

show abstract

“…To facilitate the commercialization of thin‐film TENGs, the fabrication should be simple and highly efficient. Printing technologies such as ink‐jet printing, screen printing, and roll‐to‐roll printing have been used to produce thin and flexible electronics, thus showing promise as effective techniques for the mass production of thin‐film TENGs . All components of the TENG can be printed.…”

Section: Introductionmentioning

confidence: 99%

A multilayer thin-film screen-printed triboelectric nanogenerator

et al. 2018

View full text Add to dashboard Cite

Summary In this study, we developed a multilayer thin‐film triboelectric nanogenerator (MT‐TENG) that incorporates a honeycomb‐patterned spacer fabricated via screen printing by using ultraviolet curable ink. The printed spacer, a thin polymer layer, and thin metal electrodes enable the formation of a single thin‐film structure. When force is applied to the thin‐film TENG, the honeycomb‐patterned spacer helps the polymer layer deform elastically through the opening of the pattern and contact the electrode. We implemented an MT‐TENG by stacking 3 30 mm × 30 mm × 1.4 mm TENG layers electrically connected in parallel. The electrical performances of the manufactured MT‐TENG with respect to the open‐circuit voltage and short‐circuit current were 11.45 V and 4.46 μA, respectively. The instantaneous output power density was 10.56 μW/cm3 (13.30 μW). In addition, an MT‐TENG shoe insole was fabricated to harvest energy from human walking. We demonstrated that the fabricated shoe insole could light up 9 commercial green light‐emitting diodes during walking to have an open‐circuit voltage of about 20 V.

show abstract

A flexible large-area triboelectric generator by low-cost roll-to-roll process for location-based monitoring

Cited by 38 publications

References 33 publications

Toward High‐Performance Triboelectric Nanogenerators by Engineering Interfaces at the Nanoscale: Looking into the Future Research Roadmap

Toward High‐Performance Triboelectric Nanogenerators by Engineering Interfaces at the Nanoscale: Looking into the Future Research Roadmap

Highly Reliable Real‐time Self‐powered Vibration Sensor Based on a Piezoelectric Nanogenerator

A multilayer thin-film screen-printed triboelectric nanogenerator

Contact Info

Product

Resources

About