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

The de Broglie Wavelength02:32

The de Broglie Wavelength

32.0K
In the macroscopic world, objects that are large enough to be seen by the naked eye follow the rules of classical physics. A billiard ball moving on a table will behave like a particle; it will continue traveling in a straight line unless it collides with another ball, or it is acted on by some other force, such as friction. The ball has a well-defined position and velocity or well-defined momentum, p = mv, which is defined by mass m and velocity v at any given moment. This is the typical...
32.0K
Electron Configurations02:46

Electron Configurations

23.8K
Electron configurations and orbital diagrams can be determined by applying the Aufbau principle (each added electron occupies the subshell of lowest energy available), Pauli exclusion principle (no two electrons can have the same set of four quantum numbers), and Hund’s rule of maximum multiplicity (whenever possible, electrons retain unpaired spins in degenerate orbitals).
The relative energies of the subshells determine the order in which atomic orbitals are filled (1s, 2s, 2p, 3s, 3p,...
23.8K
Trends in Lattice Energy: Ion Size and Charge02:54

Trends in Lattice Energy: Ion Size and Charge

26.0K
An ionic compound is stable because of the electrostatic attraction between its positive and negative ions. The lattice energy of a compound is a measure of the strength of this attraction. The lattice energy (ΔHlattice) of an ionic compound is defined as the energy required to separate one mole of the solid into its component gaseous ions. For the ionic solid sodium chloride, the lattice energy is the enthalpy change of the process:
26.0K

You might also read

Related Articles

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

Sort by
Same author

Constructing density functional tight-binding parameters for electronic structure modeling of lead-bromide perovskites, perovskitoids, and related structures.

The Journal of chemical physics·2026
Same author

A Floquet gap finally opens in graphene.

Nature materials·2026
Same author

Cavity-altered superconductivity.

Nature·2026
Same author

Cavity electrodynamics of van der Waals heterostructures.

Nature physics·2025
Same author

Observation of Floquet states in graphene.

Nature physics·2025
Same author

Recent Developments in DFTB+, a Software Package for Efficient Atomistic Quantum Mechanical Simulations.

The journal of physical chemistry. A·2025

Related Experiment Video

Updated: Nov 27, 2025

Optimized Fabrication Procedure for High-Quality Graphene-based Moiré Superlattice Devices
11:24

Optimized Fabrication Procedure for High-Quality Graphene-based Moiré Superlattice Devices

Published on: July 11, 2025

12.0K

Electron Traversal Times in Disordered Graphene Nanoribbons.

Michael Ridley1, Michael A Sentef2, Riku Tuovinen2

  • 1The Raymond and Beverley Sackler Center for Computational Molecular and Materials Science, Tel Aviv University, Tel Aviv 6997801, Israel.

Entropy (Basel, Switzerland)
|December 3, 2020
PubMed
Summary

We studied electron traversal times in graphene nanoribbon (GNR) molecular junctions. Electron transit signatures depend on GNR disorder and orientation, informing GNR device design.

Keywords:
graphene nanoribbonsnonequilibrium Green’s functionquantum transport

More Related Videos

Fabrication of Gate-tunable Graphene Devices for Scanning Tunneling Microscopy Studies with Coulomb Impurities
11:42

Fabrication of Gate-tunable Graphene Devices for Scanning Tunneling Microscopy Studies with Coulomb Impurities

Published on: July 24, 2015

15.8K
Probe Type II Band Alignment in One-Dimensional Van Der Waals Heterostructures Using First-Principles Calculations
13:56

Probe Type II Band Alignment in One-Dimensional Van Der Waals Heterostructures Using First-Principles Calculations

Published on: October 12, 2019

7.8K

Related Experiment Videos

Last Updated: Nov 27, 2025

Optimized Fabrication Procedure for High-Quality Graphene-based Moiré Superlattice Devices
11:24

Optimized Fabrication Procedure for High-Quality Graphene-based Moiré Superlattice Devices

Published on: July 11, 2025

12.0K
Fabrication of Gate-tunable Graphene Devices for Scanning Tunneling Microscopy Studies with Coulomb Impurities
11:42

Fabrication of Gate-tunable Graphene Devices for Scanning Tunneling Microscopy Studies with Coulomb Impurities

Published on: July 24, 2015

15.8K
Probe Type II Band Alignment in One-Dimensional Van Der Waals Heterostructures Using First-Principles Calculations
13:56

Probe Type II Band Alignment in One-Dimensional Van Der Waals Heterostructures Using First-Principles Calculations

Published on: October 12, 2019

7.8K

Area of Science:

  • Condensed Matter Physics
  • Materials Science
  • Quantum Transport

Background:

  • Graphene nanoribbons (GNRs) are promising materials for electronic devices.
  • Understanding electron transport dynamics is crucial for device performance.
  • Molecular junctions offer tunable electronic properties.

Purpose of the Study:

  • To investigate electron traversal times in GNR molecular junctions.
  • To analyze the impact of disorder and orientation on electron transport.
  • To provide insights for designing high-frequency GNR-based devices.

Main Methods:

  • Utilizing the partition-free time-dependent Landauer-Büttiker formalism.
  • Calculating transient current correlations.
  • Simulating electron transport across GNR molecular junctions.

Main Results:

  • Electron traversal times exhibit distinct signatures.
  • These signatures are sensitive to the degree of disorder in the GNR.
  • Electron transit behavior varies with the GNR's orientation.
  • Demonstrated correlation between traversal times and device operational frequencies.

Conclusions:

  • Electron traversal in GNR junctions is influenced by structural disorder and orientation.
  • These findings are relevant for optimizing the operational frequencies of GNR devices.
  • Provides a pathway for the rational design of advanced GNR-based electronic components.