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The vibrating capacitor method, as a non-contact and high-precision technique for measuring electric fields, exhibits promising prospects in various domains including electronic devices and material analysis.
The vibrating capacitor method, as a non-contact and high-precision technique for measuring electric fields, exhibits promising prospects in various domains including electronic devices and material analysis.
The contact electrification and charge transport mechanism of dielectric materials is started first, followed by introducing the basic principle and dielectric materials of TENGs. Subsequently, modification mechanisms and strategies for high-performance tribo-dielectric materials are highlighted regarding physical/chemical, surface/bulk, dielectric …
Solid–liquid contact electrification happens when the solid–liquid contact interface shifts substantially, causing some of the ions in the condensed layer to remain close to the solid surface. As a result, one side gets a net positive charge while the other side gains a net negative charge.
Over the last decade, triboelectric nanogenerator (TENG) has been verified to be an effective way of converting daily mechanical energy into electric power or detecting various stimuli in the ...
Here we propose a mechano-catalytic method, dubbed contact-electro -catalysis, utilizing radicals generated by contact electrification to promote the metal leaching under the ultrasonic wave. We ...
Contact electrification in a gas medium is usually followed by partial surface charge dissipation caused by dielectric breakdown of the gas triggered during separation of the surfaces. It is ...
In this study, we investigated the deformation effect on triboelectric behavior to enable a comprehensive understanding of the contact electrification mechanism. Theoretical results demonstrated that deformation leads to a reduction in the energy level associated with electron-accepting properties, thereby enhancing the tribonegative behavior of tribonegative …
A method to achieve ultrahigh charge density in the open air by using radical ion transfer as a compensation for charge escaping is proposed. The freestanding TENG with the effective contact area of 1 cm2 can easily light up 360 LEDs by using this method. Selective ion transfer observed in this work can help to better understand the mechanism of contact electrification.
To demonstrate how contact electrification influences the surface adhesion using the newly developed electroadhesive contact model in Section 3, we use the following adhesive problem as a representative example: Consider a neutralized elastic parabolicR = 5
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 …
This work supplies critical guidance for describing, quantifying, and modulating …
Thin film capacitors are utilized as DC-Link capaciotor for attenuating ripple currents in the motor controller of electric vehicles. However, their limited maximum operating temperature poses a bottleneck for electric vehicle motor drive circuits. Extensive research has been conducted to design thin film materials for high-temperature environments, yet these materials have not …
In electric vehicles (EVs), Li-ion battery has been applied as the main power source. To give enough power and energy to the system, single Li-ion battery cells will be connected in series and parallel to make a battery pack. Thus, cell equalization for battery pack has been an important topic in battery management system (BMS). Recently, researches have …
process of contact electrification between two metals. We have developed an experimental method to follow the charge of a small sphere bouncing on a grounded planar electrode on a time scale down to 1 s. It reveals that the sphere is discharged in the
Contact electrification through interfacial charge transfer: a mechanistic viewpoint on solid–liquid interfaces† Pritam Kumar Panda a, Deobrat Singh a, Mateus H. Köhler b, Douglas D. de Vargas b, Zhong Lin Wang * cd and Rajeev Ahuja * ae a Condensed Matter Theory Group, Materials Theory Division, Department of Physics and Astronomy, Uppsala University, Box 516, SE …
Contact electrification (CE) has been known for thousands of years, but its most basic foundations remain poorly understood. Here, the light emission (i.e., triboluminescence, TL) during sliding contacts is investigated to reveal the dynamics of charge transfer in ...
The low power density of a magnetic field energy harvester (MFEH) limits its applicability. Conventional methods for improving power harvesting, e.g., increasing the volume of the magnetic core, cannot effectively increase the output power density of the MFEH and it increases the burden on the transmission lines. An in-depth investigation reveals that by …
Electron work functions of several metals (Au, W, Ag, Cu, Mo, Ti, Al) and Si at …
This study proposes not only an innovative method for liquid flow monitoring but also a new rationale of coupling triboelectrification into the microfluidic system design, which potentially has a wide range of applications in the medical, biological, and industrial fields. Liquid flow sensor is an important component of the microfluidic system for analytical science and …
-1- The electron transfer dynamics in the contact electrification and its effects on the intensity of triboluminescence Na Li1, Liran Ma2, Xuefeng Xu*1 and Jianbin Luo2 1 School of Technology, Beijing Forestry University, Beijing 100083, China 2 State Key Laboratory of Tribology, Tsinghua University, Beijing 100084, China
Abstract: The phenomenon of surface charging, known as contact electrification or tribocharging, has wide-ranging applications ... the vibrating capacitor method can achieve non-contact and non ...
Using the capacitor-contacts-plugin The @byrds/capacitor-contacts package is a native Capacitor plugin that allows you to manage phone contacts in your Capacitor app for Ionic. It provides methods to retrieve contact information and handle permissions. In this ...
Contact electrification (CE) is an ancient phenomenon in human history, which has been recorded more than 2600 years. Since the invention of triboelectric nanogenerators ...
To study the motion and the contact electrification, gold spheres with 1 mm in diameter are dropped through a small orifice into a parallel plate capacitor. The spheres bounce on the lower plate that is virtually grounded by a charge amplifier measuring the induced as well as transferred charges.
Recently, there has been a lot of focus on developing new waste-to-energy technologies because they help us to provide sustainable energy solutions for future generations. This review paper investigates an innovative waste-to-energy technology known as triboelectric nanogenerators (TENGs), which uses the electrostatic induction and contact electrification …
Contact electrification is a widely observed phenomenon in nature and in materials. Here, the authors use molecular dynamics simulations to show the importance of thermodynamic driving forces in ...
Recently, the contact electrification between liquid and solid has attracted extensive concern, owing to the invention of liquid–solid TENG and its potential impacts on the chemical reactions [20,88–98]. Similar to contact electrification, the tribovoltaic effect not
Contact electrification, or contact charging, refers to the process of static …
Here, the authors demonstrate that the electron transfer paly an important role …
Contact electrification exists everywhere and between every phase of matter. However, its mechanism still remains to be studied. The recent triboelectric nanogenerator serves as a probe and provides some new clues about the mechanism present in solid–solid, solid–liquid, and liquid–liquid contact electrification. The gas–solid model still remains to be exploited. Here, …
Triboelectric nanogenerators (TENGs) can directly harvest energy via solid–liquid interface contact electrification, making them very suitable for harvesting raindrop energy and as active ...
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