Liquid‐Interfaces‐Based Triboelectric Nanogenerator: An Emerging Power Generation Method from Liquid‐Energy Nexus

Zhao

et al. 2023

Int. J. Extrem. Manuf.

Tribotronics has been an emerging research field by coupling triboelectricity and semiconductor. Here, three branches of the tribotronics are summarized and reviewed. First, the tribovoltaic effect is introduced as a phenomenon of direct current power generation by mechanical friction on the semiconductor interface, which has great advantage of high power density over traditional insulator-based TENGs. Second, the triboelectric modulation is elaborated by using the triboelectric potential on field effect transistors, which has demonstrated the active mechanosensation and nano-scale tactile perception. In addition, the triboelectric management is presented for improving the energy supply efficiency based on semiconductor device technology, which can provide an effective microenergy solution for sensors and microsystems. For the interactions between triboelectricity and semiconductors, the research of tribotronics has exhibited the electronics of interfacial friction systems, and the triboelectric technology by electronics. This review has shown the prospects of tribotronics for developing new functional devices and self-powered microsystems for intelligent manufacturing, robotic sensing and industrial Internet of Things.

Section: Self-powered Microsystems Based On Energy Managed Tengsmentioning

confidence: 99%

Tribotronics: an emerging field by coupling triboelectricity and semiconductors

Zhao

et al. 2023

Int. J. Extrem. Manuf.

“…The problem of easy merging and difficult separation at the liquid–liquid interface contact is still limited by the inadequacy of existing technology and there is a lack of practical applications [ 145 ]. Chen et al established an L-L TENG for liquid energy harvesting using the interaction between liquid droplets and separate liquid films [ 92 ].…”

Section: Highlighting Unique Applications Of Contact Electrification ...mentioning

confidence: 99%

A Review of Contact Electrification at Diversified Interfaces and Related Applications on Triboelectric Nanogenerator

Hu,

Iwamoto,

Chen

2023

Nano-Micro Lett.

The triboelectric nanogenerator (TENG) can effectively collect energy based on contact electrification (CE) at diverse interfaces, including solid–solid, liquid–solid, liquid–liquid, gas–solid, and gas–liquid. This enables energy harvesting from sources such as water, wind, and sound. In this review, we provide an overview of the coexistence of electron and ion transfer in the CE process. We elucidate the diverse dominant mechanisms observed at different interfaces and emphasize the interconnectedness and complementary nature of interface studies. The review also offers a comprehensive summary of the factors influencing charge transfer and the advancements in interfacial modification techniques. Additionally, we highlight the wide range of applications stemming from the distinctive characteristics of charge transfer at various interfaces. Finally, this review elucidates the future opportunities and challenges that interface CE may encounter. We anticipate that this review can offer valuable insights for future research on interface CE and facilitate the continued development and industrialization of TENG.

“…In the context of energy harvesting by nano- and micro- triboelectric generators, water is known as an active material, both in droplet , and liquid , form. For both forms, predominantly electron transfer-, longitudinal ion transfer-, or combined ion and electron transfer-based mechanisms of CE have been proposed. At variance, it has been proven that water is not critical for contact electrification (CE) to occur with polymeric active materials .…”

Section: Introductionmentioning

confidence: 99%

Water-Assisted Contact Electrification Properties of Selected Polymers and Surface Functionalization Molecules: A Computational Study

Verners

2024

J. Phys. Chem. B

Motivated by the requirements of performance stability in environments of variable humidity, the focus of this study is on the effects and role of humidity-induced water molecules and ions in the contact electrification (CE) mechanisms of triboelectric materials. In particular, the compatibility of direct charge transfer-based CE and other generally known or proposed water molecules or OH/H 3 O ion-facilitated CE mechanisms was assessed for a set of high-performance polymeric materials and functionalization molecules. The first set of test mechanisms included OH/H 3 O ion adsorption at the low-humidity limit. The adsorption resulted in physisorption or H transfer involving reactions that were not fully compatible with charge affinity-driven CE reactions on the considered contact surfaces for both ions in terms of the potential increase of the resultant density of surface charge. An alternative mechanism, which yielded compatibility at a large humidity limit, consisted of free energy-driven segregation and separation of the ions. Further test mechanisms included water adsorption-induced charge transfer and two mechanisms pertinent to charged material transfer: adsorption modulation due to formation of water monolayers and water solvation-induced separation of polymer fragments. According to the obtained results, both mechanisms could be verified as viable contributors to enhanced charge transfer. Consequently, the results allowed for conclusions regarding the general applicability of different, water-assisted CE mechanisms and the selection of particular pairs of contact materials of similar type for optimum performance in humid environments.