Search research articles

ACERCA DE JoVE

Visión General Liderazgo Blog Centro de Ayuda JoVE

AUTORES

Proceso de Publicación Consejo Editorial Alcance y Políticas Revisión por Pares Preguntas Frecuentes Enviar

BIBLIOTECARIOS

Testimonios Suscripciones Acceso Recursos Consejo Asesor de Bibliotecas Preguntas Frecuentes

INVESTIGACIÓN

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archivo

EDUCACIÓN

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Centro de Recursos para Profesores Sitio de Profesores

Términos y Condiciones de Uso

Política de Privacidad

Videos de Conceptos Relacionados

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...

También podría leer

Artículos Relacionados

Artículos vinculados a este trabajo por autores compartidos, revista y gráfico de citas.

Ordenar por

Same author

Oxygen-Doped Nanographene as High-Performance Anode Material in Lithium-Ion Batteries.

Chemistry (Weinheim an der Bergstrasse, Germany)·2026

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

Search research articles

Video Experimental Relacionado

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

Puertas de largo alcance en aislantes topológicos unidimensionales de una sola molécula

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

Resumen

Los aislantes topológicos unidimensionales de una sola molécula (1D TI) muestran una mayor conductividad con la longitud debido al acoplamiento del estado de borde. Este estudio revela que esta interacción mejora la conductividad de los conductores moleculares, allanando el camino para nuevas puertas electrónicas.

Más Videos Relacionados

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

Videos de Experimentos Relacionados

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

Área de la Ciencia:

La electrónica molecular
Física de la materia condensada
Los fenómenos cuánticos

Sus antecedentes:

Los aislantes topológicos unidimensionales de una sola molécula (1D TI) exhiben una conductividad única dependiente de la longitud.
Este comportamiento surge del acoplamiento de estados de borde topológicos, como lo describe el modelo Su-Schrieffer-Heeger.
Las IT de 1D ofrecen potencial para el encierro de largo alcance en conductores moleculares.

Objetivo del estudio:

Investigar el transporte de electrones a través de un estado de un solo borde de una molécula TI 1D específica.
Determinar el impacto del acoplamiento del estado de borde en la conductividad de los cables moleculares.
Explorar un nuevo mecanismo de puertas en la electrónica molecular.

Principales métodos:

Medición experimental del transporte de electrones a través de una molécula de oligfenileno bis (triarilamina) doblemente oxidada.
Comparación de la conductividad con una molécula de control que carece de la vía específica del estado de borde.
Cálculos de la Teoría Funcional de Densidad (DFT) para modelar y comprender las interacciones electrónicas.

Principales resultados:

Se observó una elevación en la conductividad de aproximadamente un orden de magnitud en comparación con la molécula de control.
Descubrimientos experimentales apoyados por cálculos DFT, confirmando la interacción de estado de borde como la causa.
Demostró el papel significativo del acoplamiento de estados de borde en la mejora del transporte de electrones.

Conclusiones:

La interacción entre los estados de borde topológico aumenta significativamente la conductividad en 1D TIs.
Este trabajo establece un nuevo paradigma para la electrónica molecular.
Proporciona información fundamental sobre el comportamiento del estado de borde y su influencia en el transporte de electrones en sistemas moleculares.