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: Applications01:14

Photoluminescence: Applications

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...
Photoluminescence: Fluorescence and Phosphorescence01:23

Photoluminescence: Fluorescence and Phosphorescence

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...

You might also read

Related Articles

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

Sort by
Same author

Pyrazine-embedded N^N^N-chelating tetracoordinate organoboron polycyclic heteroaromatics with low-lying LUMO levels and near-infrared luminescence.

Chemical science·2026
Same author

Aromaticity-Localized Square Tetraboron-Extended Multiple-Resonance Emitters With B‒N Covalent Bonds for Highly Efficient Narrowband Electroluminescence.

Advanced materials (Deerfield Beach, Fla.)·2026
Same author

Dynamic pendulum strategy enables both anti-quenching and fast spin flipping for efficient blue multiple-resonance thermally activated delayed fluorescence emitters.

Chemical science·2026
Same author

Facile B-N Covalent Bond Fusion in N,N'-Diaryldihydrophenazines: Achieving Efficient Narrowband Electroluminescence and Controlled Redox Activity.

Angewandte Chemie (International ed. in English)·2026
Same author

Chiral tether-guided selective synthesis of <i>D</i> <sub><i>n</i></sub> -symmetric chiral conjugated nanorings.

Chemical science·2025
Same author

Engineering B‒N Covalent Bond-Fused Naphthalene Derivatives for Narrowband Yellow Emission and Power-Efficient White OLEDs.

Advanced materials (Deerfield Beach, Fla.)·2025

Related Experiment Video

Updated: May 23, 2026

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

Red-emitting dendritic iridium(III) complexes for solution processable phosphorescent organic light-emitting diodes.

Tianshi Qin1, Junqiao Ding, Martin Baumgarten

  • 1Max Planck Institute for Polymer Research, Mainz D-55128, Germany.

Macromolecular Rapid Communications
|March 21, 2012
PubMed
Summary

Researchers developed new dendrimers that prevent light emission quenching in solid-state devices. This breakthrough enhances efficiency for phosphorescent organic light-emitting diodes (PhOLEDs) using solution-processable materials.

More Related Videos

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

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

Related Experiment Videos

Last Updated: May 23, 2026

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

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

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

Area of Science:

  • Materials Science
  • Organic Electronics
  • Photochemistry

Background:

  • Aggregation-induced emission quenching is a major challenge in solid-state organic light-emitting diodes (OLEDs).
  • Iridium(III) complexes are promising phosphorescent emitters but suffer from aggregation issues.
  • Developing efficient and solution-processable materials for phosphorescent OLEDs (PhOLEDs) is crucial for next-generation displays and lighting.

Purpose of the Study:

  • To design and synthesize novel, shape-persistent dendrimers for enhanced photoluminescence and electroluminescence.
  • To investigate the role of hole-transporting triphenylamine surface functionalization in preventing aggregation-induced quenching.
  • To explore the potential of these dendrimers as highly efficient, solution-processable materials for PhOLED applications.

Main Methods:

  • Synthesis of a red phosphorescent iridium(III) complex core.
  • Functionalization of the core with rigid polyphenylene dendrons.
  • Introduction of a hole-transporting triphenylamine surface.
  • Characterization of photophysical properties and device performance in the solid state.

Main Results:

  • The functionalized dendrimers successfully prevented intermolecular aggregation-induced emission quenching.
  • Improved charge recombination dynamics were observed due to the triphenylamine surface.
  • Significantly enhanced photo- and electroluminescence efficiencies were achieved in the solid state.
  • The dendrimers demonstrated high efficiency and solution processability for PhOLEDs.

Conclusions:

  • Multifunctional, shape-persistent dendrimers offer a viable strategy for overcoming aggregation-induced quenching in solid-state emitters.
  • Triphenylamine surface functionalization plays a key role in improving charge transport and recombination.
  • These materials represent a promising new pathway for developing highly efficient, solution-processable PhOLEDs.