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

Induced Electric Fields: Applications01:27

Induced Electric Fields: Applications

An important distinction exists between the electric field induced by a changing magnetic field and the electrostatic field produced by a fixed charge distribution. Specifically, the induced electric field is nonconservative because it does not work in moving a charge over a closed path. In contrast, the electrostatic field is conservative and does no net work over a closed path. Hence, electric potential can be associated with the electrostatic field but not the induced field. The following...
Electrochemical Systems01:24

Electrochemical Systems

Electrochemical systems provide a fascinating insight into the dynamic interplay of charged species within various phases. One notable example is the interaction between a membrane permeable to K⁺ ions but not to Cl⁻ ions, separating an aqueous KCl solution from pure water. As K⁺ ions diffuse through the membrane, they generate net charges on each phase, leading to a potential difference between them.Similarly, when a piece of Zn is immersed in an aqueous ZnSO₄ solution, the Zn metal, composed...
The Electrical Double Layer01:30

The Electrical Double Layer

In the region where two bulk phases meet, an intricate electric charge distribution arises due to charge transfer, ion adsorption, molecular orientation, and charge distortion. This complex distribution is commonly referred to as the electrical double layer.When a solid electrode interfaces with ions in an electrolyte solution, the speed of electron transfer dictates the rates of oxidation and reduction. The electrode acquires a charge through the escape of atoms into the solution as cations or...
Processes at Electrodes01:30

Processes at Electrodes

The electrode interacts with ions in the electrolyte solution at its interface. The rate of oxidation and reduction depends on the speed at which electrons can transfer through this interface. As ions attach to or leave the electrode surface, the electrode acquires a charge, and an electrical potential forms across the interface, making the process more difficult to reach equilibrium. The charge on the electrode affects the local ion concentrations in the solution, though thermal motion...
Interfacial Electrochemical Methods: Overview01:06

Interfacial Electrochemical Methods: Overview

Interfacial electrochemical methods focus on the phenomena occurring at the boundary between an electrode and a solution, as opposed to bulk methods that concentrate on the solution's overall properties. These interfacial methods are classified as either static or dynamic based on the presence of a nonzero current in the electrochemical cell and the consistency of analyte concentrations. Static methods, such as potentiometry, measure the cell's potential without any significant current passing...
Induced Electric Fields01:23

Induced Electric Fields

The fact that emfs are induced in circuits implies that work is being done on the conduction electrons in the wires. What can possibly be the source of this work? We know that it’s neither a battery nor a magnetic field, as a battery does not have to be present in a circuit where current is induced, and magnetic fields never do any work on moving charges. The source of the work is in fact an electric field that is induced in the wires. For example, if a stationary conductor is placed in a...

You might also read

Related Articles

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

Sort by
Same author

Unveiling a Hidden Conversion Pathway in CoSe<sub>2</sub> Anodes via Rationally Designed CNT-Interwoven Hollow Carbon Microclusters for High-Performance Potassium-Ion Batteries.

Advanced science (Weinheim, Baden-Wurttemberg, Germany)·2026
Same author

Carbon Interlayer with Uniformly Anchored ZnO Nanoparticles: Surface-Energy-Driven Coble Creep for Practical Anode-Free Solid-State Batteries.

Advanced science (Weinheim, Baden-Wurttemberg, Germany)·2026
Same author

pH Regulates Ion Dynamics in Carboxylated Mixed Conductors.

Chemistry of materials : a publication of the American Chemical Society·2026
Same author

Aggregation-Tuned Charge Transport and Threshold Voltage Modulation in Poly(3-hexylthiophene) Field-Effect Transistors.

Materials (Basel, Switzerland)·2026
Same author

Organic Mixed Ionic-Electronic Conductors for Organic Electrochemical Transistors: Sidechain Structure Influences Ion Uptake and Functional Performance.

Chemphyschem : a European journal of chemical physics and physical chemistry·2025
Same author

PMSE Centennial: Celebration of Success and New Frontiers in Polymer Materials Science and Engineering.

ACS macro letters·2025

Related Experiment Video

Updated: May 17, 2026

X-ray Beam Induced Current Measurements for Multi-Modal X-ray Microscopy of Solar Cells
10:16

X-ray Beam Induced Current Measurements for Multi-Modal X-ray Microscopy of Solar Cells

Published on: August 20, 2019

Creating and optimizing interfaces for electric-field and photon-induced charge transfer.

Byoungnam Park1, Kevin Whitham, Jiung Cho

  • 1School of Chemical & Biomolecular Engineering, Georgia Institute of Technology, 311 Ferst Drive, NW, Atlanta, Georgia 30332-0100, United States.

ACS Nano
|October 20, 2012
PubMed
Summary

We optimized electron donor-acceptor interfaces for efficient charge transfer. Our study reveals how interface formation and material properties impact charge transfer in organic electronics.

More Related Videos

Recombination Dynamics in Thin-film Photovoltaic Materials via Time-resolved Microwave Conductivity
11:30

Recombination Dynamics in Thin-film Photovoltaic Materials via Time-resolved Microwave Conductivity

Published on: March 6, 2017

Finite Element Modelling of a Cellular Electric Microenvironment
08:23

Finite Element Modelling of a Cellular Electric Microenvironment

Published on: May 18, 2021

Related Experiment Videos

Last Updated: May 17, 2026

X-ray Beam Induced Current Measurements for Multi-Modal X-ray Microscopy of Solar Cells
10:16

X-ray Beam Induced Current Measurements for Multi-Modal X-ray Microscopy of Solar Cells

Published on: August 20, 2019

Recombination Dynamics in Thin-film Photovoltaic Materials via Time-resolved Microwave Conductivity
11:30

Recombination Dynamics in Thin-film Photovoltaic Materials via Time-resolved Microwave Conductivity

Published on: March 6, 2017

Finite Element Modelling of a Cellular Electric Microenvironment
08:23

Finite Element Modelling of a Cellular Electric Microenvironment

Published on: May 18, 2021

Area of Science:

  • Organic electronics
  • Materials science
  • Interface engineering

Background:

  • Electron donor-acceptor interfaces are crucial for organic optoelectronic devices.
  • Understanding charge transfer mechanisms is key to device optimization.

Purpose of the Study:

  • To create and optimize a well-defined electron donor-acceptor planar heterojunction interface.
  • To investigate electric-field and photon-induced charge transfer mechanisms.
  • To probe exciton dissociation and charge transport properties.

Main Methods:

  • In situ thickness-dependent threshold voltage shift measurements in field-effect transistor devices.
  • Utilizing a pentacene/PCBM interface model system.
  • Developing an in situ test structure for probing exciton diffusion length and charge transport.

Main Results:

  • Electric-field-induced charge transfer in the dark correlates with pentacene accumulation layer development and PCBM dielectric relaxation time.
  • Exciton dissociation is governed by the competition between optical absorption length and exciton diffusion length in pentacene.
  • Demonstrated an in situ method to probe exciton diffusion length and charge transport properties.

Conclusions:

  • Optimized interface engineering is critical for efficient charge transfer in organic electronics.
  • The developed in situ methods provide valuable insights for designing high-performance optoelectronic devices.
  • Detailed understanding of charge transfer mechanisms under various conditions enables targeted device improvement.