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Related Experiment Video

Updated: Mar 9, 2026

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

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Green-Light-Emitting Diodes based on Tetrabromide Manganese(II) Complex through Solution Process.

Liang-Jin Xu¹, Cheng-Zhe Sun¹, Hui Xiao¹

¹State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, 155 Yangqiao Road West, Fuzhou, Fujian, 350002, China.

Advanced Materials (Deerfield Beach, Fla.)

|December 24, 2016

Summary

This summary is machine-generated.

Tetraphenylphosphonium tetrabromomanganate(II) [(Ph4P)2[MnBr4]] is a cost-effective, eco-friendly phosphorescent material. It demonstrates high efficiency in both nondoped and doped organic light-emitting diodes (OLEDs).

Keywords:

electroluminescence manganese organic light-emitting diodes solution process

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Production and Characterization of Vacuum Deposited Organic Light Emitting Diodes

Production and Characterization of Vacuum Deposited Organic Light Emitting Diodes

Published on: November 16, 2018

Area of Science:

Materials Science
Chemistry
Physics

Background:

Organic light-emitting diodes (OLEDs) require efficient and stable emitting materials.
Developing low-cost and environmentally benign phosphorescent emitters is crucial for sustainable display technologies.

Purpose of the Study:

To investigate the potential of (Ph4P)2[MnBr4] as a highly phosphorescent material for OLED applications.
To evaluate the performance of (Ph4P)2[MnBr4] in both nondoped and doped OLED devices.

Main Methods:

Synthesis and characterization of (Ph4P)2[MnBr4].
Fabrication and testing of nondoped OLED devices using (Ph4P)2[MnBr4] as the emitting layer.
Fabrication and testing of doped OLED devices with (Ph4P)2[MnBr4] in a host matrix.

Main Results:

Nondoped devices achieved a peak current efficiency of 25.4 cd A-1 and an external quantum efficiency (EQE) of 7.2%.
Doped devices exhibited superior performance with a peak current efficiency of 32.0 cd A-1 and an EQE of 9.6% when using a specific doping concentration.
The material proved to be a low-cost and environmentally benign alternative.

Conclusions:

Highly phosphorescent (Ph4P)2[MnBr4] is a promising material for efficient OLEDs.
Doping enhances the performance of (Ph4P)2[MnBr4]-based OLEDs.
The material's cost-effectiveness and environmental friendliness make it attractive for commercial applications.