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

Photoluminescence: Fluorescence and Phosphorescence01:23

Photoluminescence: Fluorescence and Phosphorescence

3.2K
Photoluminescence is a process where a molecule absorbs light energy and re-emits it in the form of light. This phenomenon occurs when a substance absorbs photons, promoting its electrons to higher energy level excited states, followed by a relaxation process in which the electrons return to their original ground state energy levels and emit light. Photoluminescence is widely observed in various materials, including semiconductors, and organic and inorganic compounds.
A pair of electrons in a...
3.2K
Photoluminescence: Applications01:14

Photoluminescence: Applications

893
Photoluminescence offers a wide range of applications due to its inherent sensitivity and selectivity. This technique allows for both direct and indirect analyses of the analyte. Direct quantitative analysis is possible when the analyte exhibits a favorable quantum yield for fluorescence or phosphorescence. However, an indirect analysis may be feasible if the analyte is not fluorescent or phosphorescent, or if the quantum yield is unfavorable. Indirect methods include reacting the analyte with...
893
Variables Affecting Phosphorescence and Fluorescence01:26

Variables Affecting Phosphorescence and Fluorescence

1.1K
Fluorescence and phosphorescence are essential phenomena in fields like analytical chemistry, biological imaging, and materials science, where they detect molecular properties and visualize cellular structures. Understanding the variables that influence these luminescent behaviors is crucial for maximizing accuracy and efficiency in their applications. These variables can broadly be grouped into chemical structure, solvent properties, and external conditions, each playing a distinct role in...
1.1K
Super-resolution Fluorescence Microscopy01:37

Super-resolution Fluorescence Microscopy

12.0K
Super-resolution fluorescence microscopy (SRFM) provides a better resolution than conventional fluorescence microscopy by reducing the point spread function (PSF). PSF is the light intensity distribution from a point that causes it to appear blurred. Due to PSF, each fluorescing point appears bigger than its actual size, and it is the PSF interference of nearby fluorophores that causes the blurred image. Various approaches to achieving higher resolution through SRFM have recently been...
12.0K

You might also read

Related Articles

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

Sort by
Same author

Psychological resilience profiles and health-related quality of life among older cancer survivors across two cultural contexts.

Journal of geriatric oncology·2026
Same author

Organic spontaneous emission approaching the monochromatic limit.

Science (New York, N.Y.)·2026
Same author

High-efficiency and stable deep-blue iridium phosphorescent OLEDs with enhanced charge transfer dynamics.

Light, science & applications·2026
Same author

Directed trilithiation enables entropically stabilized heavy-atom-centered triangulenes.

Nature communications·2026
Same author

One-Shot Carbon Insertion Unlocks Polycyclic Frameworks and Near-Infrared Photocatalysts.

Journal of the American Chemical Society·2026
Same author

Successful treatment of a grade IIIb traumatic pancreatic injury with a pancreatic duct stent: a case report.

Clinical journal of gastroenterology·2026

Related Experiment Video

Updated: Dec 10, 2025

Scale-up Chemical Synthesis of Thermally-activated Delayed Fluorescence Emitters Based on the Dibenzothiophene-S,S-Dioxide Core
08:51

Scale-up Chemical Synthesis of Thermally-activated Delayed Fluorescence Emitters Based on the Dibenzothiophene-S,S-Dioxide Core

Published on: October 24, 2017

9.9K

Solution-Processable Pure Green Thermally Activated Delayed Fluorescence Emitter Based on the Multiple Resonance

Naoya Ikeda1, Susumu Oda1, Ryuji Matsumoto2

  • 1Department of Chemistry, School of Science and Technology, Kwansei Gakuin University, 2-1 Gakuen, Sanda, Hyogo, 669-1337, Japan.

Advanced Materials (Deerfield Beach, Fla.)
|September 1, 2020
PubMed
Summary

Researchers developed a new solution-processable multiple resonance (MR) thermally activated delayed fluorescence (TADF) material for efficient and pure green organic light-emitting diodes (OLEDs) via economical fabrication.

Keywords:
multiple resonance effectorganic light-emitting diodespure greensolution-processablethermally activated delayed fluorescence

More Related Videos

Time-resolved Photophysical Characterization of Triplet-harvesting Organic Compounds at an Oxygen-free Environment Using an iCCD Camera
06:08

Time-resolved Photophysical Characterization of Triplet-harvesting Organic Compounds at an Oxygen-free Environment Using an iCCD Camera

Published on: December 27, 2018

9.3K
Step-by-Step Guide for Harnessing Organic Light Emitting Diodes by Solution Processed Device Fabrication of a TADF Emitter
06:25

Step-by-Step Guide for Harnessing Organic Light Emitting Diodes by Solution Processed Device Fabrication of a TADF Emitter

Published on: November 7, 2025

260

Related Experiment Videos

Last Updated: Dec 10, 2025

Scale-up Chemical Synthesis of Thermally-activated Delayed Fluorescence Emitters Based on the Dibenzothiophene-S,S-Dioxide Core
08:51

Scale-up Chemical Synthesis of Thermally-activated Delayed Fluorescence Emitters Based on the Dibenzothiophene-S,S-Dioxide Core

Published on: October 24, 2017

9.9K
Time-resolved Photophysical Characterization of Triplet-harvesting Organic Compounds at an Oxygen-free Environment Using an iCCD Camera
06:08

Time-resolved Photophysical Characterization of Triplet-harvesting Organic Compounds at an Oxygen-free Environment Using an iCCD Camera

Published on: December 27, 2018

9.3K
Step-by-Step Guide for Harnessing Organic Light Emitting Diodes by Solution Processed Device Fabrication of a TADF Emitter
06:25

Step-by-Step Guide for Harnessing Organic Light Emitting Diodes by Solution Processed Device Fabrication of a TADF Emitter

Published on: November 7, 2025

260

Area of Science:

  • Materials Science
  • Organic Electronics
  • Photophysics

Background:

  • Thermally activated delayed fluorescence (TADF) materials based on the multiple resonance (MR) effect offer high efficiency and color purity in organic light-emitting diodes (OLEDs).
  • Current MR-TADF materials are not suitable for solution-processing, limiting economical mass production of OLED displays.

Purpose of the Study:

  • To design and synthesize a novel solution-processable MR-TADF material for efficient and pure green OLEDs.
  • To develop semiconducting polymers for interlayer and emissive layers to facilitate charge recombination.
  • To fabricate and characterize a solution-processed OLED device using the developed materials.

Main Methods:

  • Design of a solution-processable MR-TADF material (OAB-ABP-1) with an extended π-skeleton and bulky substituents.
  • Synthesis of OAB-ABP-1 via a four-step process including double borylation from commercial starting materials.
  • Synthesis of two novel semiconducting polymers for interlayer and emissive layers.
  • Fabrication of a solution-processed OLED device using OAB-ABP-1 and the synthesized polymers.

Main Results:

  • OAB-ABP-1 exhibits attractive photophysical properties: narrow emission, high photoluminescence quantum yield, small S1-T1 energy gap, and low reverse intersystem crossing activation energy.
  • These properties are attributed to alternating HOMO/LUMO localization induced by B, N, and O atoms.
  • The fabricated solution-processed OLED displays pure green electroluminescence with a small full-width at half-maximum.
  • The device achieves high external quantum efficiency with minimal efficiency roll-off.

Conclusions:

  • A novel solution-processable MR-TADF material (OAB-ABP-1) has been successfully designed and synthesized.
  • The developed material and associated polymers enable efficient and pure green electroluminescence in solution-processed OLEDs.
  • This work paves the way for economical mass production of high-performance OLED displays.