Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Characteristics of MOSFET

Characteristics of MOSFET

Metal-oxide-semiconductor field-effect Transistors, or MOSFETs, play a critical role in electronic circuits. They are primarily utilized for amplifying and switching signals.
Various vital parameters influence their functionality, which is crucial for theory and electronics applications. First, channel dimensions, precisely length, and width, are pivotal. The size of these channels affects the transistor's ability to carry current and switching speeds; shorter channels typically enable...

Band Theory

Band Theory

When two or more atoms come together to form a molecule, their atomic orbitals combine and molecular orbitals of distinct energies result. In a solid, there are a large number of atoms, and therefore a large number of atomic orbitals that may be combined into molecular orbitals. These groups of molecular orbitals are so closely placed together to form continuous regions of energies, known as the bands.
The energy difference between these bands is known as the band gap.
Conductor, Semiconductor,...

Semiconductors

Semiconductors

There is variation in the electrical conductivity of materials - metals, semiconductors, and insulators that are showcased with the help of the energy band diagrams.
Metals such as copper (Cu), zinc (Zn), or lead (Pb) have low resistivity and feature conduction bands that are either not fully occupied or overlap with the valence band, making a bandgap non-existent. This allows electrons in the highest energy levels of the valence band to easily transition to the conduction band upon gaining...

Ligand-gated Ion Channels

Ligand-gated Ion Channels

Ligand-gated ion channels are transmembrane proteins with a channel for ions to pass through and a binding site for a ligand. The channel opens only when a ligand attaches to the binding site.
Three Subfamilies of Ligand-gated Ion Channels
Ligand-gated ion channels fall into three subfamilies. The 'Cys-loop' includes the nicotinic acetylcholine receptors, γ-aminobutyric acid (GABA), glycine, and 5-hydroxytryptamine receptors. The second one is the 'Pore-loop' channels that...

You might also read

Related Articles

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

Sort by

Same author

Amplified chiroptic response in a multi-helical penta-perylene structure.

Chemical science·2026

Same author

Designing effective single-molecule electromagnets with radially π-conjugated carbon structures.

Nature communications·2026

Same author

Scanning Tunneling Microscope-Based Break-Junction TechniqueA Tutorial.

ACS physical chemistry Au·2026

Same author

A Computationally Efficient and Accurate Method for Predicting Conductance of Single-Molecule Junctions.

Nano letters·2026

Same author

Strong Coupling in Orthogonal Nanographenes.

Chemistry (Weinheim an der Bergstrasse, Germany)·2026

Same author

Ion-Conductive Wires Form High-Performance All-Solid-State Polymer Electrolytes.

Journal of the American Chemical Society·2026

Search research articles

Related Experiment Video

Updated: Jun 24, 2025

Electric-field Control of Electronic States in WS2 Nanodevices by Electrolyte Gating

Electric-field Control of Electronic States in WS2 Nanodevices by Electrolyte Gating

Published on: April 12, 2018

Long-Range Gating in Single-Molecule One-Dimensional Topological Insulators.

Liang Li¹, Shayan Louie¹, Nicholas M Orchanian¹

¹Department of Chemistry, Columbia University, New York, New York 10027, United States.

Journal of the American Chemical Society

|June 4, 2024

Summary

This summary is machine-generated.

Single-molecule one-dimensional topological insulators (1D TIs) show increased conductance with length due to edge state coupling. This study reveals this interaction enhances molecular conductor conductance, paving the way for new electronic gating.

More Related Videos

Scalable Quantum Integrated Circuits on Superconducting Two-Dimensional Electron Gas Platform

Scalable Quantum Integrated Circuits on Superconducting Two-Dimensional Electron Gas Platform

Published on: August 2, 2019

All-electronic Nanosecond-resolved Scanning Tunneling Microscopy: Facilitating the Investigation of Single Dopant Charge Dynamics

All-electronic Nanosecond-resolved Scanning Tunneling Microscopy: Facilitating the Investigation of Single Dopant Charge Dynamics

Published on: January 19, 2018

Related Experiment Videos

Last Updated: Jun 24, 2025

Electric-field Control of Electronic States in WS2 Nanodevices by Electrolyte Gating

Electric-field Control of Electronic States in WS2 Nanodevices by Electrolyte Gating

Published on: April 12, 2018

Scalable Quantum Integrated Circuits on Superconducting Two-Dimensional Electron Gas Platform

Scalable Quantum Integrated Circuits on Superconducting Two-Dimensional Electron Gas Platform

Published on: August 2, 2019

All-electronic Nanosecond-resolved Scanning Tunneling Microscopy: Facilitating the Investigation of Single Dopant Charge Dynamics

All-electronic Nanosecond-resolved Scanning Tunneling Microscopy: Facilitating the Investigation of Single Dopant Charge Dynamics

Published on: January 19, 2018

Area of Science:

Molecular electronics
Condensed matter physics
Quantum phenomena

Background:

Single-molecule one-dimensional topological insulators (1D TIs) exhibit unique length-dependent conductance.
This behavior arises from the coupling of topological edge states, as described by the Su-Schrieffer-Heeger model.
1D TIs offer potential for long-range gating in molecular conductors.

Purpose of the Study:

Investigate electron transport through a single-edge state of a specific 1D TI molecule.
Determine the impact of edge state coupling on conductance in molecular wires.
Explore a novel gating mechanism in molecular electronics.

Main Methods:

Experimental measurement of electron transport through a doubly oxidized oligophenylene bis(triarylamine) molecule.
Comparison of conductance with a control molecule lacking the specific edge state pathway.
Density Functional Theory (DFT) calculations to model and understand electronic interactions.

Main Results:

Observed an elevation in conductance by approximately one order of magnitude compared to the control molecule.
Experimental findings supported by DFT calculations, confirming edge state interaction as the cause.
Demonstrated the significant role of edge state coupling in enhancing electron transport.

Conclusions:

The interaction between topological edge states significantly boosts conductance in 1D TIs.
This work establishes a new gating paradigm for molecular electronics.
Provides fundamental insights into edge state behavior and its influence on electron transport in molecular systems.