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

Dynamic Equilibrium02:20

Dynamic Equilibrium

62.4K
A reversible chemical reaction represents a chemical process that proceeds in both forward (left to right) and reverse (right to left) directions. When the rates of the forward and reverse reactions are equal, the concentrations of the reactant and product species remain constant over time and the system is at equilibrium. A special double arrow is used to emphasize the reversible nature of the reaction. The relative concentrations of reactants and products in equilibrium systems vary greatly;...
62.4K
Equation of Rotational Dynamics01:08

Equation of Rotational Dynamics

14.8K
Angular variables are introduced in rotational dynamics. Comparing the definitions of angular variables with the definitions of linear kinematic variables, it is seen that there is a mapping of the linear variables to the rotational ones. Linear displacement, velocity, and acceleration have their equivalents in rotational motion, which are angular displacement, angular velocity, and angular acceleration. Similar to the rotational variables, a mapping exists from Newton's second law of motion...
14.8K
Dynamics of Circular Motion01:30

Dynamics of Circular Motion

25.4K
An object undergoing circular motion, like a race car, is accelerating because it is changing the direction of its velocity. This centrally directed acceleration is called centripetal acceleration. This acceleration acts along the radius of the curved path (thus is also referred to as radial acceleration).
Any acceleration must be produced by some force. Therefore, any force or combination of forces can cause centripetal acceleration. A few examples include the tension in the rope on a...
25.4K
Fermi Level Dynamics01:12

Fermi Level Dynamics

707
The vacuum level denotes the energy threshold required for an electron to escape from a material surface. It is usually positioned above the conduction band of a semiconductor and acts as a benchmark for comparing electron energies within various materials.
Electron affinity in semiconductors refers to the energy gap between the minimum of its conduction band and the vacuum level and it is a critical parameter in determining how easily a semiconductor can accept additional electrons.
The work...
707
Protein Dynamics in Living Cells01:19

Protein Dynamics in Living Cells

2.7K
Different fluorescence-based techniques are used to study the protein dynamics in living cells. These techniques include FRAP, FRET, and PET.
Fluorescent recovery after photobleaching (FRAP) is a fluorescent-protein-based detection technique used to quantify protein movement rates within the cell. This method exposes a small portion of the cell to an intense laser beam. The laser beam causes permanent photobleaching of the fluorophore-tagged proteins in the exposed region. As the bleached...
2.7K
Dynamic Modulus of Elasticity of Concrete01:16

Dynamic Modulus of Elasticity of Concrete

993
The dynamic modulus of elasticity assesses how a concrete structure deforms under impact or dynamic loads. It is typically higher than the static modulus of elasticity, measured under slow, steady loading conditions.
The sonic test is a common method to determine the dynamic modulus. In this test, a concrete beam, sized either 6 x 6 x 30 inches or 4 x 4 x 20 inches, is clamped at its center. Vibrations are initiated at one end of the beam by an electromagnetic exciter unit powered by a...
993

You might also read

Related Articles

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

Sort by
Same author

Excitons in nanoribbons derived from a monolayer biphenylene network.

Nanoscale·2026
Same author

Structural Stability of Sulfur-Depleted MoS<sub>2</sub>.

ACS nanoscience Au·2026
Same author

Excitons and solar-harvesting potential of γ-graphyne.

Chemical communications (Cambridge, England)·2026
Same author

DOD-Graphene: A Promising sp<sup>2</sup>-Carbon Monolayer for Hydrogen Storage.

Langmuir : the ACS journal of surfaces and colloids·2026
Same author

Excitonic, Optical, and Photovoltaic Properties of the 1T-NiO<sub>2</sub> Monolayer.

ACS omega·2026
Same author

Stability Prediction of 2H-MoO<sub>2</sub> Monolayer as a Platform for Photonic Devices: from Thermodynamics to the Excitonic Effects through First-Principles Calculations.

ACS omega·2026

Related Experiment Video

Updated: Jan 28, 2026

Synthesis of Graphene-Hydroxyapatite Nanocomposites for Potential Use in Bone Tissue Engineering
07:14

Synthesis of Graphene-Hydroxyapatite Nanocomposites for Potential Use in Bone Tissue Engineering

Published on: July 27, 2022

4.1K

Bipolaron Dynamics in Graphene Nanoribbons.

Gesiel Gomes Silva1, Luiz Antonio Ribeiro Junior2,3,4, Marcelo Lopes Pereira Junior5

  • 1Goiás Federal Institute of Education, Science and Technology, Luziania, Goias, 72.811-580, Brazil.

Scientific Reports
|March 1, 2019
PubMed
Summary

Bipolarons, charge carriers in graphene nanoribbons (GNRs), are dynamically stable and exhibit unique velocity transitions. These bipolarons show stable movement even under high electric fields in GNRs.

More Related Videos

Development and Functionalization of Electrolyte-Gated Graphene Field-Effect Transistor for Biomarker Detection
07:51

Development and Functionalization of Electrolyte-Gated Graphene Field-Effect Transistor for Biomarker Detection

Published on: February 1, 2022

3.8K
Synthesis and Functionalization of 3D Nano-graphene Materials: Graphene Aerogels and Graphene Macro Assemblies
10:23

Synthesis and Functionalization of 3D Nano-graphene Materials: Graphene Aerogels and Graphene Macro Assemblies

Published on: November 5, 2015

14.5K

Related Experiment Videos

Last Updated: Jan 28, 2026

Synthesis of Graphene-Hydroxyapatite Nanocomposites for Potential Use in Bone Tissue Engineering
07:14

Synthesis of Graphene-Hydroxyapatite Nanocomposites for Potential Use in Bone Tissue Engineering

Published on: July 27, 2022

4.1K
Development and Functionalization of Electrolyte-Gated Graphene Field-Effect Transistor for Biomarker Detection
07:51

Development and Functionalization of Electrolyte-Gated Graphene Field-Effect Transistor for Biomarker Detection

Published on: February 1, 2022

3.8K
Synthesis and Functionalization of 3D Nano-graphene Materials: Graphene Aerogels and Graphene Macro Assemblies
10:23

Synthesis and Functionalization of 3D Nano-graphene Materials: Graphene Aerogels and Graphene Macro Assemblies

Published on: November 5, 2015

14.5K

Area of Science:

  • Condensed matter physics
  • Materials science
  • Nanotechnology

Background:

  • Graphene nanoribbons (GNRs) possess tunable semiconducting band gaps influencing their electronic properties.
  • Charge transport in GNRs can involve hopping mechanisms mediated by self-interacting charge carriers and lattice deformations.

Purpose of the Study:

  • To investigate the formation and dynamics of bipolarons in GNRs using computational methods.
  • To analyze the stability and velocity characteristics of bipolarons under varying electric field strengths.

Main Methods:

  • A two-dimensional tight-binding model was employed to simulate charge transport in GNRs.
  • The study focused on identifying and characterizing the behavior of bipolarons.

Main Results:

  • The formation of dynamically stable bipolarons in GNRs was revealed.
  • These bipolarons maintain stability even under high electric field strengths.
  • Bipolaron dynamics were observed to transition between acoustic and optical regimes, characterized by a saturation velocity.
  • A critical electric field strength was identified, marking the transition where bipolarons move at approximately the speed of sound.

Conclusions:

  • Graphene nanoribbons can host dynamically stable bipolarons.
  • The unique velocity-dependent behavior of bipolarons in GNRs suggests potential for novel electronic applications.
  • Understanding bipolaron dynamics is crucial for harnessing the electronic properties of GNRs.