Surface Engineering for Enhanced Triboelectric Nanogenerator

Maksoud, M. I. A. Abdel; Jiang, Jinxing; Wen, Zhen; Sun, Xuhui

doi:10.3390/nanoenergyadv1010004

Cited by 56 publications

(29 citation statements)

References 116 publications

(140 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The output performance is improved by surface modification. [ 67 ] The plain surface gives an output voltage of ≈16.95 V from the sensor for the wrist pulse pressure <3 kPa. The displacement range for the plain surface corresponding to this pressure range is 220 μm.…”

Section: Resultsmentioning

confidence: 99%

Design and Simulation of Single‐Electrode Mode Triboelectric Nanogenerator‐Based Pulse Sensor for Healthcare Applications Using COMSOL Multiphysics

Mathew

Vivekanandan

2022

Energy Tech

View full text Add to dashboard Cite

The advancement in triboelectric nanogenerator technology leads to numerous advantages in various fields, especially in biomedical and healthcare applications. Theoretical modeling and simulation of sensors is the initial step for an optimized cost‐effective real‐time sensor fabrication which reduces the wastage of materials and rapid prototyping, giving an expected sensor performance. Herein, a theoretical model of single‐electrode triboelectric nanogenerator is presented which finds its application in healthcare monitoring as a wearable flexible pulse sensor to measure the wrist pulse for disease diagnosis. The device optimization in terms of structure, material and output performance is done based on the said application. A brief study of the operating principle of the sensor along with the factors affecting the output is discussed in this work. The design is conceptually investigated considering the electrostatic shield effect from the contact electrode. The output performance variation concerning the plain and micro‐structured triboelectric surface is also determined in terms of open‐circuit voltage of ≈16.95 and ≈21.63 V, respectively, and also a short‐circuit charge of ≈181.81 and ≈196.57 pC, respectively. The superior output performance even for smaller wrist pulse displacement range can serve as a significant assistance for the rational plan of the device structure.

show abstract

Section: Resultsmentioning

confidence: 99%

Design and Simulation of Single‐Electrode Mode Triboelectric Nanogenerator‐Based Pulse Sensor for Healthcare Applications Using COMSOL Multiphysics

Mathew

Vivekanandan

2022

Energy Tech

View full text Add to dashboard Cite

show abstract

“…One of the simplest and most common methods to improve the output performance of TENGs is to increase the effective contact area through fabricating micro-/nano-textures at the contact surfaces or interfaces. Multiple micro-/nano-patterned structures with regular and uniform textures can be fabricated based on various processing techniques, such as lithography, etching, self-assembly, laser patterning, and so on [66][67][68][69][70][71]. Various types of nanostructures, including nanoparticles, nanorods, and nanowires, are fabricated into TENGs to increase the contact area, thereby obtaining a high charge transfer density.…”

Section: Electrification Mechanismmentioning

confidence: 99%

Smart Textile Triboelectric Nanogenerators: Prospective Strategies for Improving Electricity Output Performance

Dong

Xiao

Cheng

et al. 2022

Nanoenergy Advances

View full text Add to dashboard Cite

By seamlessly integrating the wearing comfortability of textiles with the biomechanical energy harvesting function of a triboelectric nanogenerator (TENG), an emerging and advanced intelligent textile, i.e., smart textile TENG, is developed with remarkable abilities of autonomous power supply and self-powered sensing, which has great development prospects in the next-generation human-oriented wearable electronics. However, due to inadequate interface contact, insufficient electrification of materials, unavoidable air breakdown effect, output capacitance feature, and special textile structure, there are still several bottlenecks in the road towards the practical application of textile TENGs, including low output, high impedance, low integration, poor working durability, and so on. In this review, on the basis of mastering the existing theory of electricity generation mechanism of TENGs, some prospective strategies for improving the mechanical-to-electrical conversion performance of textile TENGs are systematically summarized and comprehensively discussed, including surface/interface physical treatments, atomic-scale chemical modification, structural optimization design, work environmental control, and integrated energy management. The advantages and disadvantages of each approach in output enhancement are further compared at the end of this review. It is hoped that this review can not only provide useful guidance for the research of textile TENGs to select optimization methods but also accelerate their large-scale practical process.

show abstract

“…To avoid this negative effect, vacuum packaging has been used to effectively isolate the air and realize an ultra-high charge density. , However, it is very difficult and expensive to keep TENGs in a high vacuum, especially to ensure that it can maintain a continuous contact-separation movement. Thus, surface and interface engineering has become a choice to regulate charges. , Since the properties of the dielectric layer have a great impact on the charge density of TENGs, regulating the dielectric coefficient of the triboelectric material by the doping elastomer is considered a preferred method. − Materials like high dielectric ceramic material BTO and Au particles are also used to increase the dielectric constant. However, these rigid particles are not consistent with the PDMS of soft property and may lead to undesirable stress concentrations and layer delamination.…”

Section: Introductionmentioning

confidence: 99%

Laminated Triboelectric Nanogenerator for Enhanced Self-Powered Pressure-Sensing Performance by Charge Regulation

Zhu

Wang

et al. 2022

ACS Appl. Mater. Interfaces

Self Cite

View full text Add to dashboard Cite

Triboelectric sensors provide an effective approach to solving the power supply problem for distributed sensing nodes. However, the poor stability and repeatability of the output signal limit its further development due to structural deficiencies and intrinsic working mechanisms. This work proposes a contact-separation mode laminated triboelectric nanogenerator (L-TENG) by introducing multifunctional layers to regulate triboelectric charges. A liquid metal Galinstan and PDMS mixture with a dense microstructure array is fabricated as the dielectric layer. Liquid squalene is filled in the space between two triboelectric layers to eliminate the influence of moisture in the air. A Cu shield film is sputtered on the surface to screen the electrostatic interference and enhance the repeatability. Owing to the effective design, the sensitivity of the L-TENG could reach 6.66 kPa −1 in the low-pressure region and 0.79 kPa −1 in the high-pressure region with a wide detection range from 8 Pa to 71.85 kPa. In addition, it also illustrates fast response and recovery times of 30 and 10 ms, respectively, and great stability in a humid environment. Finally, the L-TENG has been successfully demonstrated to monitor various physical activities in humans such as swallowing, finger bending, and so forth. This work has important scientific significance in opening up a new strategy for the structure optimization and performance improvement of triboelectric sensors.

show abstract

Surface Engineering for Enhanced Triboelectric Nanogenerator

Cited by 56 publications

References 116 publications

Design and Simulation of Single‐Electrode Mode Triboelectric Nanogenerator‐Based Pulse Sensor for Healthcare Applications Using COMSOL Multiphysics

Design and Simulation of Single‐Electrode Mode Triboelectric Nanogenerator‐Based Pulse Sensor for Healthcare Applications Using COMSOL Multiphysics

Smart Textile Triboelectric Nanogenerators: Prospective Strategies for Improving Electricity Output Performance

Laminated Triboelectric Nanogenerator for Enhanced Self-Powered Pressure-Sensing Performance by Charge Regulation

Contact Info

Product

Resources

About