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

Interfacial Electrochemical Methods: Overview

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...

You might also read

Related Articles

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

Sort by

Same author

Organic carbon sink dynamics and carbon sink-source balance in global lakes during the Anthropocene.

Fundamental research·2026

Same author

Threshold Switching Behavior and Underlying Mechanisms in Pure SiO<sub>2</sub>-Based Selectors.

ACS applied materials & interfaces·2026

Same author

Decoding Surface-Bound Isomers: A QIT-ToF-SIMS Platform Integrating Tandem Mass Spectrometry and Laser Spectroscopy.

Analytical chemistry·2025

Same author

Engineering Hall Resistivity Anomalies in Epitaxial SrRuO<sub>3</sub> Thin Films by Mo Doping.

ACS applied materials & interfaces·2025

Same author

Molecular-level composition and sources of airborne organic matter deposited into the Yellow Sea.

Marine pollution bulletin·2025

Same author

Geographical differentiation of onions (Allium cepa) cultivated in South Korea revealed by untargeted metabolomics and chemometric analysis.

Food chemistry·2025

Search research articles

Related Experiment Video

Updated: Jun 5, 2026

Production and Characterization of Vacuum Deposited Organic Light Emitting Diodes

Production and Characterization of Vacuum Deposited Organic Light Emitting Diodes

Published on: November 16, 2018

Spatially Resolved Functional Group Analysis of OLED Materials Using EELS and ToF-SIMS.

Kyun Seong Dae¹, Kyoung-Soon Jang¹, Chang Min Choi²

¹Center for Research Equipment, Korea Basic Science Institute, Daejeon 34133, Republic of Korea.

Analytical Chemistry

|July 5, 2024

Summary

Electron energy-loss spectroscopy (EELS) with improved resolution precisely analyzes organic light-emitting diode (OLED) materials. This advanced technique maps molecular composition and functional groups in OLEDs, enabling detailed nanoscale analysis.

More Related Videos

Using Cyclic Voltammetry, UV-Vis-NIR, and EPR Spectroelectrochemistry to Analyze Organic Compounds

Using Cyclic Voltammetry, UV-Vis-NIR, and EPR Spectroelectrochemistry to Analyze Organic Compounds

Published on: October 18, 2018

High-Throughput Analysis of Optical Mapping Data Using ElectroMap

High-Throughput Analysis of Optical Mapping Data Using ElectroMap

Published on: June 4, 2019

Related Experiment Videos

Last Updated: Jun 5, 2026

Production and Characterization of Vacuum Deposited Organic Light Emitting Diodes

Production and Characterization of Vacuum Deposited Organic Light Emitting Diodes

Published on: November 16, 2018

Using Cyclic Voltammetry, UV-Vis-NIR, and EPR Spectroelectrochemistry to Analyze Organic Compounds

Using Cyclic Voltammetry, UV-Vis-NIR, and EPR Spectroelectrochemistry to Analyze Organic Compounds

Published on: October 18, 2018

High-Throughput Analysis of Optical Mapping Data Using ElectroMap

High-Throughput Analysis of Optical Mapping Data Using ElectroMap

Published on: June 4, 2019

Area of Science:

Materials Science
Spectroscopy
Nanotechnology

Background:

Electron energy-loss spectroscopy (EELS) is a key technique for analyzing inorganic material electronic structures.
High spatial resolution analysis of organic materials, particularly for organic light-emitting diodes (OLEDs), requires enhanced energy resolution.

Purpose of the Study:

To improve the energy resolution of EELS for precise analysis of OLED materials.
To demonstrate spatially resolved functional group analysis and molecular mapping of OLEDs.
To integrate EELS with time-of-flight secondary ion mass spectrometry for comprehensive nanoscale characterization.

Main Methods:

Utilizing a monochromator to enhance EELS energy resolution.
Applying energy-loss near-edge structure (ELNES) analysis to map nitrogen content and bonding in organic molecules.
Combining EELS with time-of-flight secondary ion mass spectrometry (ToF-SIMS) for molecular mapping.

Main Results:

Achieved greater precision in analyzing the electronic structure of OLED materials.
Successfully mapped nitrogen content and identified distinct carbon and nitrogen bonding characteristics.
Demonstrated successful molecular mapping of OLED bilayers and measurement of layer thickness.
Enabled spatially resolved functional group analysis in multilayer organic architectures.

Conclusions:

The enhanced EELS technique provides high-precision electronic structure analysis for OLED materials.
Integrated EELS and ToF-SIMS enable detailed molecular and functional group mapping of organic multilayer systems.
This approach advances nanoscale analysis methods for organic electronic devices.