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

Search research articles

Related Experiment Video

Updated: Mar 18, 2026

Enhanced Electron Injection and Exciton Confinement for Pure Blue Quantum-Dot Light-Emitting Diodes by Introducing Partially Oxidized Aluminum Cathode

Enhanced Electron Injection and Exciton Confinement for Pure Blue Quantum-Dot Light-Emitting Diodes by Introducing Partially Oxidized Aluminum Cathode

Published on: May 31, 2018

Solubilised bright blue-emitting iridium complexes for solution processed OLEDs.

Adam F Henwood¹, Ashu K Bansal², David B Cordes¹

¹Organic Semiconductor Centre , EaStCHEM School of Chemistry , University of St Andrews , St Andrews , Fife KY16 9ST , UK . Email: eli.zysman-colman@st-andrews.ac.uk ; http://www.zysman-colman.com ; ; Tel: +44 (0)1334 463826.

Journal of Materials Chemistry. C

|July 12, 2016

Summary

Related Concept Videos

You might also read

Related Articles

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

Sort by

Same author

Emissive triphenylamine functionalised 1,8-naphthalimide and naphthalene diimide fluorophores: aggregation, computation and biological studies.

Journal of materials chemistry. B·2024

Same author

Synthesis of 3,4-dihydroxy-1,8-naphthalimides with inbuilt catechol and crown ether functionalities.

Organic & biomolecular chemistry·2023

Same author

Generating water/MeOH-soluble and luminescent polymers by grafting 2,6-bis(1,2,3-triazol-4-yl)pyridine (btp) ligands onto a poly(ethylene-<i>alt</i>-maleic anhydride) polymer and cross-linking with terbium(III).

Organic & biomolecular chemistry·2023

Same author

[Re(CO)<sub>3</sub>(5-PAN)Cl], a rhenium(I) naphthalimide complex for the visible light photocatalytic reduction of CO<sub>2</sub>.

Dalton transactions (Cambridge, England : 2003)·2021

Same author

Luminescent Dinuclear Copper(I) Complexes Bearing an Imidazolylpyrimidine Bridging Ligand.

Inorganic chemistry·2020

Same author

Fluorescent supramolecular hierarchical self-assemblies from glycosylated 4-amino- and 4-bromo-1,8-naphthalimides.

Organic & biomolecular chemistry·2020

Researchers developed a novel iridium complex with exceptionally bright blue emission, achieving a 90% photoluminescence quantum yield. This advancement holds promise for brighter and more efficient organic light-emitting diodes (OLEDs).

Area of Science:

Materials Science
Photochemistry
Organic Electronics

Background:

Iridium complexes are crucial in developing efficient organic light-emitting diodes (OLEDs).
Achieving bright and stable blue emission remains a significant challenge in OLED technology.
Ligand design plays a critical role in tuning the photophysical properties of iridium complexes.

Purpose of the Study:

To synthesize and characterize a novel cationic iridium complex with enhanced blue emission properties.
To investigate the impact of sterically bulky and electron-deficient ligands on the luminescence of iridium complexes.
To evaluate the performance of the synthesized complex in solution-processed organic light-emitting diodes (OLEDs).

Main Methods:

Synthesis of a novel iridium complex, [Ir(dFMesppy)2(o-xylbiim)](PF6), utilizing cyclometalating C^N (dFMesppy) and N^N (o-xylbiim) ligands.

More Related Videos

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

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

Published on: October 24, 2017

Development of Efficient OLEDs from Solution Deposition

Development of Efficient OLEDs from Solution Deposition

Published on: November 4, 2022

Related Experiment Videos

Last Updated: Mar 18, 2026

Enhanced Electron Injection and Exciton Confinement for Pure Blue Quantum-Dot Light-Emitting Diodes by Introducing Partially Oxidized Aluminum Cathode

Enhanced Electron Injection and Exciton Confinement for Pure Blue Quantum-Dot Light-Emitting Diodes by Introducing Partially Oxidized Aluminum Cathode

Published on: May 31, 2018

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

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

Published on: October 24, 2017

Development of Efficient OLEDs from Solution Deposition

Development of Efficient OLEDs from Solution Deposition

Published on: November 4, 2022

Photoluminescence spectroscopy to determine quantum yield (ΦPL) and emission maximum (λmax).

Fabrication and characterization of solution-processed organic light-emitting diodes (OLEDs) using the synthesized iridium complex.

Main Results:

The novel iridium complex exhibited extraordinarily bright blue emission with a photoluminescence quantum yield (ΦPL) of 90% and an emission maximum (λmax) at 459 nm in acetonitrile.
The complex demonstrated superior performance compared to reference iridium complexes with 4,4'-di-tert-butyl-2,2'-bipyridine ligands.
Successfully fabricated solution-processed OLEDs utilizing the developed iridium complex.

Conclusions:

The strategic combination of electron-deficient dFMesppy and electron-rich o-xylbiim ligands leads to highly efficient blue emission in cationic iridium complexes.
This new iridium complex represents a significant advancement for achieving bright and efficient blue-emitting OLEDs.
The findings pave the way for next-generation display and lighting technologies.