Jove
Visualize
Contáctanos
JoVE
x logofacebook logolinkedin logoyoutube logo
ACERCA DE JoVE
Visión GeneralLiderazgoBlogCentro de Ayuda JoVE
AUTORES
Proceso de PublicaciónConsejo EditorialAlcance y PolíticasRevisión por ParesPreguntas FrecuentesEnviar
BIBLIOTECARIOS
TestimoniosSuscripcionesAccesoRecursosConsejo Asesor de BibliotecasPreguntas Frecuentes
INVESTIGACIÓN
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchivo
EDUCACIÓN
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualCentro de Recursos para ProfesoresSitio de Profesores
Términos y Condiciones de Uso
Política de Privacidad
Políticas

Videos de Conceptos Relacionados

Capacitor With A Dielectric01:18

Capacitor With A Dielectric

Parallel plate capacitors consist of two conducting plates separated by a certain distance. However, it is mechanically difficult to hold the large plates parallel to each other without actual contact. Hence, a dielectric layer is commonly placed between the plates, which provides an easy solution for holding the plates together with a small gap and increases the capacitance of the capacitor.
Dielectrics are non-conducting materials with no free or loosely bound electrons. When a dielectric is...
Capacitor in an AC Circuit01:23

Capacitor in an AC Circuit

A capacitor is charged by passing an electric current through it, which causes the plates to start accumulating an electrostatic charge. Since the strength of the charging current is maximum when the capacitor plates are uncharged and gradually decreases exponentially until the capacitor is fully charged, the charging process is neither instantaneous nor linear. The property of a capacitor to store a charge on its plates is called its capacitance.
Consider a purely capacitive circuit consisting...
MOS Capacitor01:25

MOS Capacitor

A Metal-Oxide-Semiconductor (MOS) capacitor is a fundamental structure used extensively in semiconductor device technology, particularly in the fabrication of integrated circuits and MOSFETs (metal-oxide-semiconductor field-effect transistors). The MOS capacitor consists of three layers: a metal gate, a dielectric oxide, and a semiconductor substrate.
The metal gate is typically made from highly conductive materials such as aluminum or polysilicon. Beneath the metal gate lies a thin layer of...
Capacitors01:15

Capacitors

Capacitors play a crucial role in car radios, where they filter and store frequencies to ensure clear signal reception. Essentially serving as energy storage devices, capacitors store energy within their electric field and are composed of two parallel conducting plates separated by a dielectric.
When a voltage source is connected to a capacitor, positive and negative charges accumulate on the opposite plates. This accumulation generates a potential difference that equals the product of the...
Equivalent Capacitance01:19

Equivalent Capacitance

Multiple capacitors can be connected in a circuit in series or parallel configuration. When the capacitor combination is connected to a battery, the potential drop across each capacitor and the magnitude of charge stored in the individual capacitor depends on the type of the connection. The capacitor combination is replaced by a single equivalent capacitor that stores the same amount of charge as the combination for a given potential difference.
The following strategies are adopted to calculate...
Equivalent Capacitance01:19

Equivalent Capacitance

From the study of resistive circuits, it is understood that employing a series-parallel combination serves as an effective strategy for simplifying circuits. Capacitors can be arranged within a circuit in one of two ways: a series configuration or a parallel configuration. The way these capacitors are connected to a battery will influence both the potential drop across each individual capacitor and the size of the charge that each capacitor can store. This is determined by the specific type of...

También podría leer

Artículos Relacionados

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

Ordenar por
Same author

Podium Abstracts Presented at the 2025 Annual Meeting of the Arthroscopy Association of North America.

Arthroscopy : the journal of arthroscopic & related surgery : official publication of the Arthroscopy Association of North America and the International Arthroscopy Association·2026
Same author

Bucket-Handle Meniscus Tears: Epidemiology, Diagnosis, Management, and Outcomes.

JBJS reviews·2025
Same author

Editorial Commentary: Clinical Equipoise Regarding Arthroscopic Management of Femoroacetabular Impingement With Tönnis Grade 2 Osteoarthritis May Mean We Don't Know or Don't Agree: It Does Not Mean We Don't Care.

Arthroscopy : the journal of arthroscopic & related surgery : official publication of the Arthroscopy Association of North America and the International Arthroscopy Association·2024
Same author

Kinetics and Energetics of Electron Transfer to Dimer Radical Cations.

The journal of physical chemistry. B·2023
Same author

Editorial Commentary: Proper Indications for Primary Labral Resection and Reconstruction Versus Primary Labral Repair Remain Vague and Undefined.

Arthroscopy : the journal of arthroscopic & related surgery : official publication of the Arthroscopy Association of North America and the International Arthroscopy Association·2022
Same author

Remote sensing of solar-induced chlorophyll fluorescence (SIF) in vegetation: 50 years of progress.

Remote sensing of environment·2021

Video Experimental Relacionado

Updated: Jun 8, 2026

Evaluating the Electrochemical Properties of Supercapacitors using the Three-Electrode System
12:00

Evaluating the Electrochemical Properties of Supercapacitors using the Three-Electrode System

Published on: January 7, 2022

Capacitor de doble capa de grafeno con rendimiento de filtración de línea ac.

John R Miller1, R A Outlaw, B C Holloway

  • 1JME, Inc., 17210 Parkland Drive, Shaker Heights, OH 44120, USA. jmecapacitor@att.net

Science (New York, N.Y.)
|October 9, 2010
PubMed
Resumen
Este resumen es generado por máquina.

Los condensadores eléctricos de doble capa (DLC) con nuevos electrodos de grafeno filtran eficientemente la corriente ondulada. Este diseño ofrece tiempos de respuesta más rápidos y potencial para dispositivos electrónicos más pequeños.

Más Videos Relacionados

Development of a 3D Graphene Electrode Dielectrophoretic Device
11:15

Development of a 3D Graphene Electrode Dielectrophoretic Device

Published on: June 22, 2014

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

Videos de Experimentos Relacionados

Last Updated: Jun 8, 2026

Evaluating the Electrochemical Properties of Supercapacitors using the Three-Electrode System
12:00

Evaluating the Electrochemical Properties of Supercapacitors using the Three-Electrode System

Published on: January 7, 2022

Development of a 3D Graphene Electrode Dielectrophoretic Device
11:15

Development of a 3D Graphene Electrode Dielectrophoretic Device

Published on: June 22, 2014

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

Área de la Ciencia:

  • Ciencia de los materiales Ciencia de los materiales.
  • Ingeniería Eléctrica Ingeniería Eléctrica.
  • La electroquímica es electroquímica.

Sus antecedentes:

  • Los condensadores eléctricos de doble capa (DLC) exhiben una alta capacidad de almacenamiento, pero a menudo funcionan como resistencias en aplicaciones de filtrado por ondas debido a sus electrodos porosos.
  • Los DLC tradicionales luchan con el filtrado eficiente de las ondas de CA en la electrónica de potencia.

Objetivo del estudio:

  • Desarrollar DLC con un mejor rendimiento de filtrado para corriente continua rectificada.
  • Investigar el uso de nanohojas de grafeno orientadas verticalmente para mejorar el rendimiento de los condensadores.

Principales métodos:

  • Fabricación de DLCs utilizando nanohojas de grafeno orientadas verticalmente y cultivadas directamente en colectores de corriente metálicos.
  • Caracterización del rendimiento del condensador, incluidas las constantes de tiempo RC y la eficiencia de filtrado de ondulación a 120 Hz.

Principales resultados:

  • Se ha demostrado una eficiencia de filtración de corriente de 120 hertz utilizando los nuevos DLC.
  • Se obtuvieron constantes de tiempo RC significativamente reducidas (<200 microsegundos) en comparación con los DLC típicos (~1 segundo).
  • Los electrodos de nanohojas de grafeno mostraron un aumento en el almacenamiento de carga debido a los planos de borde expuestos.

Conclusiones:

  • Los electrodos de nanohoja de grafeno orientados verticalmente permiten un eficiente filtrado por ondulación en los DLC.
  • Los DLC desarrollados ofrecen un rendimiento superior y un potencial de miniaturización en comparación con los condensadores convencionales.