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

Differential Leveling01:12

Differential Leveling

723
Differential leveling is a precise method in surveying used to determine the elevation difference between two points. Its primary goal is to establish accurate vertical measurements to create level surfaces or grade lines critical for designing and constructing infrastructures such as roads, bridges, and buildings.The procedure for differential leveling begins with setting up and leveling the instrument at a point where the benchmark can be seen. The level rod is held on the benchmark (BM), and...
723
Atomic Orbitals02:44

Atomic Orbitals

44.8K
An atomic orbital represents the three-dimensional regions in an atom where an electron has the highest probability to reside. The radial distribution function indicates the total probability of finding an electron within the thin shell at a distance r from the nucleus. The atomic orbitals have distinct shapes which are determined by l, the angular momentum quantum number. The orbitals are often drawn with a boundary surface, enclosing densest regions of the cloud.
44.8K
Electron Orbital Model01:18

Electron Orbital Model

72.3K
Orbitals are the areas outside of the atomic nucleus where electrons are most likely to reside. They are characterized by different energy levels, shapes, and three-dimensional orientations. The location of electrons is described most generally by a shell or principal energy level, then by a subshell within each shell, and finally, by individual orbitals found within the subshells.
The first shell is closest to the nucleus, and it has only one subshell with a single spherical orbital called the...
72.3K
The Energies of Atomic Orbitals03:21

The Energies of Atomic Orbitals

30.3K
In an atom, the negatively charged electrons are attracted to the positively charged nucleus. In a multielectron atom, electron-electron repulsions are also observed. The attractive and repulsive forces are dependent on the distance between the particles, as well as the sign and magnitude of the charges on the individual particles. When the charges on the particles are opposite, they attract each other. If both particles have the same charge, they repel each other.
30.3K
Molecular Orbital Theory I02:35

Molecular Orbital Theory I

47.7K
Overview of Molecular Orbital Theory
47.7K
Molecular Orbital Theory II03:51

Molecular Orbital Theory II

27.6K
Molecular Orbital Energy Diagrams
27.6K

You might also read

Related Articles

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

Sort by
Same author

Lignin Selection Improves the Performance of Porous Carbon Nanofiber Electrodes in Freestanding Supercapacitors.

ACS sustainable chemistry & engineering·2026
Same author

Structural and reactivity investigations using organo-copper(i) and zinc(ii) complexes with hydrogen and carbon dioxide.

Chemical science·2025
Same author

Hot-drawing ionic liquid-spun lignin-poly(vinyl alcohol) fibres increases strength and polymer alignment.

Faraday discussions·2025
Same author

High-speed imaging of CNT deagglomeration in aqueous solution with surfactant.

Ultrasonics sonochemistry·2025
Same author

Acid-Free Liquid Crystalline Single-Walled Carbon Nanotube Polyelectrolytes for Interconnected Fibers, Yarns, and Electronic Textiles.

ACS nano·2025
Same author

Structural basis of topoisomerase targeting by delafloxacin.

Nature communications·2025

Related Experiment Video

Updated: Feb 9, 2026

Differentiated Mouse Adipocytes in Primary Culture: A Model of Insulin Resistance
09:48

Differentiated Mouse Adipocytes in Primary Culture: A Model of Insulin Resistance

Published on: February 17, 2023

3.5K

Rectification and negative differential resistance via orbital level pinning.

Aaron Zhenghui Thong1, Milo S P Shaffer2, Andrew P Horsfield3

  • 1Deparment of Materials and Thomas Young Centre, Imperial College London, London, SW7 2AZ, UK.

Scientific Reports
|June 16, 2018
PubMed
Summary

Tailoring negative differential resistance (NDR) in molecular systems like 4-thiophenyl-azafulleroid (4TPA-C60) depends on metal/molecule interface couplings. Optimizing charge extraction and non-frontier states is key for designing molecular electronic devices.

More Related Videos

Transverse Fracture of the Mouse Femur with Stabilizing Pin
03:57

Transverse Fracture of the Mouse Femur with Stabilizing Pin

Published on: December 29, 2021

4.1K
Reconfigurable Microfluidic Channel with Pin-discretized Sidewalls
10:39

Reconfigurable Microfluidic Channel with Pin-discretized Sidewalls

Published on: April 12, 2018

7.8K

Related Experiment Videos

Last Updated: Feb 9, 2026

Differentiated Mouse Adipocytes in Primary Culture: A Model of Insulin Resistance
09:48

Differentiated Mouse Adipocytes in Primary Culture: A Model of Insulin Resistance

Published on: February 17, 2023

3.5K
Transverse Fracture of the Mouse Femur with Stabilizing Pin
03:57

Transverse Fracture of the Mouse Femur with Stabilizing Pin

Published on: December 29, 2021

4.1K
Reconfigurable Microfluidic Channel with Pin-discretized Sidewalls
10:39

Reconfigurable Microfluidic Channel with Pin-discretized Sidewalls

Published on: April 12, 2018

7.8K

Area of Science:

  • Molecular electronics
  • Organic semiconductors
  • Quantum transport

Background:

  • Donor-acceptor systems are crucial for molecular electronics.
  • Negative differential resistance (NDR) is a key feature for molecular diodes and resonant tunneling diodes (RTDs).
  • Previous work indicated charge transfer at resonance hinders NDR in 4TPA-C60.

Purpose of the Study:

  • Investigate NDR in 4-thiophenyl-azafulleroid (4TPA-C60) donor-acceptor systems.
  • Understand the role of metal/molecule interface couplings in NDR.
  • Explore methods to tailor NDR features for molecular electronic applications.

Main Methods:

  • Ab initio calculations to model charge transport.
  • Analysis of HOMO/LUMO resonance and charge extraction.
  • Computational investigation of interface effects on electronic states.

Main Results:

  • NDR in 4TPA-C60 is tunable via metal/molecule interface couplings.
  • Limited charge extraction causes HOMO-LUMO pinning, delaying NDR onset.
  • Non-frontier states significantly influence charge transport and NDR.
  • Fluorine substitution tunes acceptor energy and narrows current peaks.

Conclusions:

  • Metal/molecule interface design is critical for molecular electronic architectures.
  • Understanding charge transfer mechanisms informs the design of molecular diodes and RTDs.
  • Tailoring interface couplings and utilizing non-frontier states enables control over NDR phenomena.