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

911
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...
911

You might also read

Related Articles

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

Sort by
Same author

Open- and Closed-Shell Roles of Sensitizer and Annihilator in Pseudo-Single Component Mixtures for Upconversion.

Journal of the American Chemical Society·2026
Same author

Superior Stable NIR-II Emissive Radicals Enabled by a Symmetric Dual-Acceptor Engineering for Immunogenic Sono/Photodynamic Theranostics.

Journal of the American Chemical Society·2026
Same author

Coulombic control of charge transfer in radicals with quartet recycling luminescence.

Nature communications·2026
Same author

Water-Soluble Self-Assembled Radical Nanoparticles for Deep-Red Fluorescence-Guided Type I/II Photodynamic Therapy.

Small (Weinheim an der Bergstrasse, Germany)·2026
Same author

Multimodal electron microscopy of halide perovskite interfacial dynamics.

Nature·2026
Same author

Efficient spin-doublet near-infrared emission beyond 800 nm <i>via</i> intramolecular charge transfer in a quasi-planar donor-acceptor structure.

Chemical communications (Cambridge, England)·2026

Related Experiment Video

Updated: Dec 17, 2025

Production and Characterization of Vacuum Deposited Organic Light Emitting Diodes
07:44

Production and Characterization of Vacuum Deposited Organic Light Emitting Diodes

Published on: November 16, 2018

9.3K

Polymer Light Emitting Diodes with Doublet Emission.

Qinying Gu1, Alim Abdurahman2, Richard H Friend1

  • 1Department of Physics, Cavendish Laboratory, Cambridge University, Cambridge CB3 0HF, U.K.

The Journal of Physical Chemistry Letters
|June 24, 2020
PubMed
Summary
This summary is machine-generated.

Researchers developed polymer-radical-based organic light-emitting diodes (OLEDs) using PS-CzTTM. These novel OLEDs demonstrate efficient deep-red emission, maintaining the unique doublet emission mechanism of organic radicals.

More Related Videos

Fabrication of White Light-emitting Electrochemical Cells with Stable Emission from Exciplexes
05:51

Fabrication of White Light-emitting Electrochemical Cells with Stable Emission from Exciplexes

Published on: November 15, 2016

8.3K
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

Related Experiment Videos

Last Updated: Dec 17, 2025

Production and Characterization of Vacuum Deposited Organic Light Emitting Diodes
07:44

Production and Characterization of Vacuum Deposited Organic Light Emitting Diodes

Published on: November 16, 2018

9.3K
Fabrication of White Light-emitting Electrochemical Cells with Stable Emission from Exciplexes
05:51

Fabrication of White Light-emitting Electrochemical Cells with Stable Emission from Exciplexes

Published on: November 15, 2016

8.3K
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

Area of Science:

  • Organic electronics
  • Materials science
  • Photophysics

Background:

  • Organic light-emitting radicals offer unique doublet emission properties for display technology.
  • Previous research focused on small-molecular radicals in organic light-emitting diodes (OLEDs).
  • Polymer-radical-based OLEDs have not been previously reported.

Purpose of the Study:

  • To fabricate and characterize the first polymer-radical-based organic light-emitting diodes (OLEDs).
  • To investigate the emission mechanism of polymer radicals in OLED devices.
  • To assess the performance of polymer radicals as emitters in solution-processed OLEDs.

Main Methods:

  • Synthesis and adoption of a polymer radical, PS-CzTTM, as an emitter.
  • Fabrication of solution-processed OLEDs with PS-CzTTM doped in 2,2',2″-(1,3,5-benzinetriyl)-tris(1-phenyl-1H-benzimidazole) (TPBi).
  • Measurement of temperature-dependent time-resolved photoluminescent spectra and transient electroluminescence.

Main Results:

  • Achieved a maximum external quantum efficiency of 3.0% for a deep-red emitting device.
  • Demonstrated that emission channels in both thin films and devices originate from doublet exciton transitions.
  • Confirmed the maintenance of the unique doublet emission mechanism of radicals in PS-CzTTM films and devices.

Conclusions:

  • Successfully fabricated the first polymer-radical-based OLEDs using PS-CzTTM.
  • The study validates the use of polymer radicals as efficient emitters in OLEDs.
  • The unique doublet emission mechanism of radicals is preserved in polymer-based OLEDs, paving the way for advanced display technologies.