Highly efficient self-healable and dual responsive hydrogel-based deformable triboelectric nanogenerators for wearable electronics

Guan, Qingbao; Lin, Guanghui; Gong, Yuzhu; Wang, Jingfeng; Tan, Weiyi; Bao, Dequan; Liu, Yina; You, Zhengwei; Sun, Xuhui; Wen, Zhen; Pan, Yue

doi:10.1039/c9ta02711d

Cited by 189 publications

(126 citation statements)

References 38 publications

Supporting

Mentioning

121

Contrasting

Order By: Relevance

“…Nevertheless, the stretchability is limited by the fact that the percolated networks of conductive fillers are broken at large strain 21. Alternatively, TENGs with ultrahigh stretchability have been reported by using ionic conductors of hydrogels or ionogels 22–34. Hydrogels are composed of hydrophilic polymer networks swollen with water or ionic aqueous solution, which can be stretchable, biocompatible and transparent 35–37.…”

Section: Introductionmentioning

confidence: 99%

Stretchable, Transparent, and Thermally Stable Triboelectric Nanogenerators Based on Solvent‐Free Ion‐Conducting Elastomer Electrodes

Zhang

Chen

Guo

et al. 2020

Adv Funct Materials

134

118

View full text Add to dashboard Cite

The development of stretchable/soft electronics requires power sources that can match their stretchability. In this study, a highly stretchable, transparent, and environmentally stable triboelectric nanogenerator with ionic conductor electrodes (iTENG) is reported. The ion-conducting elastomer (ICE) electrode, together with a dielectric elastomer electrification layer, allows the ICE-iTENG to achieve a stretchability of 1036% and transmittance of 91.5%. Most importantly, the ICE is liquid solvent-free and thermally stable up to 335 °C, avoiding the dehydration-induced performance degradation of commonly used hydrogels. The ICE-iTENG shows no decrease in electrical output even after storing at 100 °C for 15 h. Biomechanical motion energies are demonstrated to be harvested by the ICE-iTENG for powering wearable electronics intermittently without extra power sources. An ICE-iTENGbased pressure sensor is also developed with sensitivity up to 2.87 kPa −1 . The stretchable ICE-iTENG overcomes the strain-induced performance degradation using percolated electrical conductors and liquid evaporationinduced degradation using ion-conducting hydrogels/ionogels, suggesting great promising applications in soft/stretchable electronics under a relatively wider temperature range.

show abstract

Section: Introductionmentioning

confidence: 99%

Stretchable, Transparent, and Thermally Stable Triboelectric Nanogenerators Based on Solvent‐Free Ion‐Conducting Elastomer Electrodes

Zhang

Chen

Guo

et al. 2020

Adv Funct Materials

134

118

View full text Add to dashboard Cite

show abstract

“…When the difference between two materials is bigger, the corresponding charge transfer amount is larger, and the output of the prepared TENG is higher. The triboelectric materials could be divided into four kinds: polymer-metal [72][73][74][75][76][77][78][79][80], polymer-polymer [81-84], 6 Research polymer-semiconductor [85][86][87], and others [88][89][90][91][92]. The summarization of materials and fabrication of TENGs are shown in Table 2.…”

Section: Triboelectric Materialsmentioning

confidence: 99%

Nanogenerator-Based Self-Powered Sensors for Wearable and Implantable Electronics

et al. 2020

View full text Add to dashboard Cite

Wearable and implantable electronics (WIEs) are more and more important and attractive to the public, and they have had positive influences on all aspects of our lives. As a bridge between wearable electronics and their surrounding environment and users, sensors are core components of WIEs and determine the implementation of their many functions. Although the existing sensor technology has evolved to a very advanced level with the rapid progress of advanced materials and nanotechnology, most of them still need external power supply, like batteries, which could cause problems that are difficult to track, recycle, and miniaturize, as well as possible environmental pollution and health hazards. In the past decades, based upon piezoelectric, pyroelectric, and triboelectric effect, various kinds of nanogenerators (NGs) were proposed which are capable of responding to a variety of mechanical movements, such as breeze, body drive, muscle stretch, sound/ultrasound, noise, mechanical vibration, and blood flow, and they had been widely used as self-powered sensors and micro-nanoenergy and blue energy harvesters. This review focuses on the applications of self-powered generators as implantable and wearable sensors in health monitoring, biosensor, human-computer interaction, and other fields. The existing problems and future prospects are also discussed.

show abstract

“…As an energy converter, triboelectric nanogenerator (TENG) can harvest various types of mechanical energies, such as human motion, wind energy, and hydropower [14][15][16][17][18][19][20][21][22][23]. The birth of TENG provides an approach as external bias for driving different electrochemical processes [24][25][26].…”

Section: Introductionmentioning

confidence: 99%

Hybridized Mechanical and Solar Energy-Driven Self-Powered Hydrogen Production

et al. 2020

Self Cite

View full text Add to dashboard Cite

HIGHLIGHTS• A hybridized mechanical and solar energy-driven hydrogen production system was developed.• A rotatory disc-shaped triboelectric nanogenerator (RD-TENG) enables to harvest mechanical energy from water flow and functions as a sufficient external power source.• WO 3 /BiVO 4 heterojunction is fabricated as photoanodes in the self-powered photoelectrochemical (PEC) cell, and the hydrogen production rate reaches to 7.27 μL min −1 under sunlight illumination with the energy conversion efficiency of 2.59%.ABSTRACT Photoelectrochemical hydrogen generation is a promising approach to address the environmental pollution and energy crisis. In this work, we present a hybridized mechanical and solar energy-driven selfpowered hydrogen production system. A rotatory disc-shaped triboelectric nanogenerator was employed to harvest mechanical energy from water and functions as a sufficient external power source. WO 3 /BiVO 4 heterojunction photoanode was synthesized in a PEC water-splitting cell to produce H 2 .After transformation and rectification, the peak current reaches 0.1 mA at the rotation speed of 60 rpm. In this case, the H 2 evolution process only occurs with sunlight irradiation. When the rotation speed is over 130 rpm, the peak photocurrent and peak dark current have nearly equal value. Direct electrolysis of water is almost simultaneous with photoelectrocatalysis of water. It is worth noting that the hydrogen production rate increases to 5.45 and 7.27 μL min −1 without or with light illumination at 160 rpm. The corresponding energy conversion efficiency is calculated to be 2.43% and 2.59%, respectively. All the results demonstrate such a self-powered system can successfully achieve the PEC hydrogen generation, exhibiting promising possibility of energy conversion.

show abstract

Highly efficient self-healable and dual responsive hydrogel-based deformable triboelectric nanogenerators for wearable electronics

Abstract: A soft hydrogel based self-healing triboelectric nanogenerator (HS-TENG) is highly deformable, and both mechanically and electrically self-healable upon exposure to water spraying and near-infrared (NIR) light.

Cited by 189 publications

References 38 publications

Stretchable, Transparent, and Thermally Stable Triboelectric Nanogenerators Based on Solvent‐Free Ion‐Conducting Elastomer Electrodes

Stretchable, Transparent, and Thermally Stable Triboelectric Nanogenerators Based on Solvent‐Free Ion‐Conducting Elastomer Electrodes

Nanogenerator-Based Self-Powered Sensors for Wearable and Implantable Electronics

Hybridized Mechanical and Solar Energy-Driven Self-Powered Hydrogen Production

Contact Info

Product

Resources

About