Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Faraday Disk Dynamo01:23

Faraday Disk Dynamo

3.9K
A Faraday disk dynamo is a DC generator, producing an emf that is constant in time. It consists of a conducting disk that rotates with a constant angular velocity in the magnetic field, perpendicular to the disk's plane. The rotation of the disk causes a change in magnetic flux, which induces an emf, causing opposite charges to develop on the rim and in the center of the disk. The polarity of the induced emf can be determined by the direction of the magnetic field and the direction of the...
3.9K
Van de Graaff Generator01:15

Van de Graaff Generator

2.9K
Van de Graaff generators (or Van de Graaffs) are devices used to demonstrate high voltage due to static electricity that can also be used for research. Robert Van de Graaff first built one in 1931 (based on original suggestions by Lord Kelvin) for use in nuclear physics research.
Van de Graaff uses both smooth and pointed surfaces, conductors, and insulators to generate large static charges and, hence, large voltages. A substantial excess charge can be deposited on the sphere because it moves...
2.9K
Electric Generator: Alternator01:25

Electric Generator: Alternator

2.6K
Electric generators induce an emf by rotating a coil in a magnetic field. A simple alternator is an AC generator that creates electrical energy that varies sinusoidally with time. A simple alternator consists of a conducting loop that is placed inside a uniform magnetic field. The loop is connected to split rings connected to the external circuit with the help of brushes.
The magnetic flux passing through the coil varies sinusoidally as the loop rotates inside the magnetic field. This...
2.6K
DC Generator01:19

DC Generator

2.7K
An alternator converts mechanical energy into electrical energy that varies sinusoidally, resulting in AC current. Meanwhile, a DC generator converts mechanical energy into electrical energy, which are DC pulses with the same polarity. The construction of a DC generator is similar to that of an alternator, except that the pair of slip rings is replaced by a single split ring, also called a commutator. The commutator functions like a periodic rotary switch; it changes the contacts with the...
2.7K
Generation of Three-Phase Voltage01:21

Generation of Three-Phase Voltage

1.1K
A three-phase AC generator has a rotor with a rotating magnet placed within the stator mounted with the stationary three-phase winding to generate three-phase voltages via mutual induction. These windings are evenly distributed around the inner circumference of the stator and are arranged 120 electrical degrees apart. Three-phase stator windings consist of three separate coils or groups of coils, known as phases, each connected in Y (star) configuration or Delta configuration.
As the rotor...
1.1K
Induced Electric Fields: Applications01:27

Induced Electric Fields: Applications

2.7K
An important distinction exists between the electric field induced by a changing magnetic field and the electrostatic field produced by a fixed charge distribution. Specifically, the induced electric field is nonconservative because it does not work in moving a charge over a closed path. In contrast, the electrostatic field is conservative and does no net work over a closed path. Hence, electric potential can be associated with the electrostatic field but not the induced field. The following...
2.7K

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Corrigendum to "Dual-Responsive multifunctional "core-shell" magnetic nanoparticles promoting Fenton reaction for tumor ferroptosis therapy" [Int. J. Pharm. 622 (2022) 121898].

International journal of pharmaceutics·2026
Same author

Simultaneous phase and electronic structure regulation of MoC <i>via</i> B,N-doping and bimetallic synergy for efficient hydrogen evolution.

Chemical communications (Cambridge, England)·2026
Same author

The high stable RuMnSnO<i><sub>x</sub></i>catalysts for enhanced oxygen evolution reaction and anti-reversal performance.

Nanotechnology·2026
Same author

EDIL3 regulates caveolin-1-dependent endothelial permeability in subchondral bone during osteoarthritis.

International immunopharmacology·2026
Same author

Enhancing the hydrogen evolution reaction on Ru/KTN through an RuCl<sub><i>x</i></sub> intermediate strategy.

Chemical communications (Cambridge, England)·2026
Same author

A bispecific antibody designed to act as a NRP2/PLXNA1 agonist mimics anticancer activity of SEMA3F.

The Journal of biological chemistry·2025

Related Experiment Video

Updated: May 2, 2026

Preparation of Janus Particles and Alternating Current Electrokinetic Measurements with a Rapidly Fabricated Indium Tin Oxide Electrode Array
09:55

Preparation of Janus Particles and Alternating Current Electrokinetic Measurements with a Rapidly Fabricated Indium Tin Oxide Electrode Array

Published on: June 23, 2017

7.6K

Radial-arrayed rotary electrification for high performance triboelectric generator.

Guang Zhu1, Jun Chen2, Tiejun Zhang3

  • 11] Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing 100083, China [2] School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, USA [3].

Nature Communications
|March 6, 2014
PubMed
Summary
This summary is machine-generated.

This study introduces a novel two-dimensional triboelectric generator that harvests mechanical energy. This sustainable power source achieves high output and efficiency, demonstrating feasibility for practical applications.

More Related Videos

Preparation of ZnO Nanorod/Graphene/ZnO Nanorod Epitaxial Double Heterostructure for Piezoelectrical Nanogenerator by Using Preheating Hydrothermal
10:39

Preparation of ZnO Nanorod/Graphene/ZnO Nanorod Epitaxial Double Heterostructure for Piezoelectrical Nanogenerator by Using Preheating Hydrothermal

Published on: January 15, 2016

12.0K
Experiments on Ultrasonic Lubrication Using a Piezoelectrically-assisted Tribometer and Optical Profilometer
09:21

Experiments on Ultrasonic Lubrication Using a Piezoelectrically-assisted Tribometer and Optical Profilometer

Published on: September 28, 2015

11.8K

Related Experiment Videos

Last Updated: May 2, 2026

Preparation of Janus Particles and Alternating Current Electrokinetic Measurements with a Rapidly Fabricated Indium Tin Oxide Electrode Array
09:55

Preparation of Janus Particles and Alternating Current Electrokinetic Measurements with a Rapidly Fabricated Indium Tin Oxide Electrode Array

Published on: June 23, 2017

7.6K
Preparation of ZnO Nanorod/Graphene/ZnO Nanorod Epitaxial Double Heterostructure for Piezoelectrical Nanogenerator by Using Preheating Hydrothermal
10:39

Preparation of ZnO Nanorod/Graphene/ZnO Nanorod Epitaxial Double Heterostructure for Piezoelectrical Nanogenerator by Using Preheating Hydrothermal

Published on: January 15, 2016

12.0K
Experiments on Ultrasonic Lubrication Using a Piezoelectrically-assisted Tribometer and Optical Profilometer
09:21

Experiments on Ultrasonic Lubrication Using a Piezoelectrically-assisted Tribometer and Optical Profilometer

Published on: September 28, 2015

11.8K

Area of Science:

  • Energy Harvesting
  • Materials Science
  • Nanotechnology

Background:

  • Mechanical energy harvesting is crucial for sustainable power.
  • Triboelectric generators offer a promising route for clean energy generation.
  • Existing technologies face challenges in cost-effectiveness and efficiency.

Purpose of the Study:

  • To develop a high-performance two-dimensional planar-structured triboelectric generator.
  • To demonstrate the harvesting of various ambient mechanical motions.
  • To validate the practical application of the generator as a sustainable power source.

Main Methods:

  • Fabrication of a two-dimensional planar-structured triboelectric generator.
  • Utilizing contact electrification with radial arrays of micro-sized sectors.
  • Integration with a power management circuit for stable direct-current output.

Main Results:

  • Achieved a high output power of 1.5 W (19 mW cm⁻² power density) at 24% efficiency.
  • Successfully harnessed ambient motions like wind, water flow, and body movement.
  • Demonstrated a power-supplying system capable of driving and charging commercial electronics.

Conclusions:

  • The developed triboelectric generator offers exceptional power density and low cost.
  • Its unique structure and mechanism enable broad applicability for self-powered electronics.
  • Potential for large-scale power generation using this sustainable technology.