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Updated: Jun 21, 2026
07:44
Production and Characterization of Vacuum Deposited Organic Light Emitting Diodes
Published on: November 16, 2018
White-light phosphorescence emission from a single molecule: application to OLED.
Henk J Bolink1, Filippo De Angelis, Etienne Baranoff
1Instituto de Cienca Molecular, Universidad de Valencia, P.O. Box 22085, Valencia, ES-46071, Spain. henk.bolink@uv.es
Chemical Communications (Cambridge, England)
|July 31, 2009
Summary
A novel iridium(iii) complex generates white light through both photoluminescence and electroluminescence. This emission stems from a single excited state, offering a unique pathway for white light-emitting materials.
Area of Science:
- Materials Science
- Inorganic Chemistry
- Photochemistry
Background:
- Cyclometallated iridium(iii) complexes are widely investigated for their photophysical properties.
- Achieving efficient and stable white light emission remains a key challenge in materials science.
Purpose of the Study:
- To synthesize and characterize a simple mononuclear cyclometallated iridium(iii) complex.
- To investigate the photoluminescence and electroluminescence properties of the synthesized complex.
- To elucidate the origin of the observed white light emission.
Main Methods:
- Synthesis of a mononuclear cyclometallated iridium(iii) complex.
- Spectroscopic analysis including photoluminescence and electroluminescence measurements.
- Electrochemical characterization to understand the excited state properties.
Main Results:
- The iridium(iii) complex demonstrated broad emission spanning 440 to 800 nm, resulting in white light.
- Both photo- and electroluminescence were observed, indicating versatile applications.
- The white emission was attributed to a single emitting excited state with mixed character.
Conclusions:
- A simple mononuclear cyclometallated iridium(iii) complex can achieve efficient white light emission.
- The findings provide insights into the design principles for single-emitting-state white light materials.
- This work contributes to the development of advanced luminescent materials for lighting and display technologies.
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