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2021 | OriginalPaper | Chapter

16. Luminescent Materials for Organic Light-Emitting Diodes

Author : Shigeyuki Yagi

Published in: Progress in the Science of Functional Dyes

Publisher: Springer Singapore

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Abstract

Nowadays, an organic light-emitting diode (OLED), consisting of nano-order luminescent and semiconductive organic thin films, attracts considerable interest from the viewpoint of application to flat panel displays and illumination devices. Among the constituent materials of OLEDs, emitting materials play an important role in determination of the device performance such as luminous efficiencies and chromaticity coordinates of electroluminescence. Here, luminescent dyes and related compounds used as emitters in OLEDs are reviewed in accordance with the mechanism of the exciton generation. First, fluorescent emitters based on organic dyes and π-conjugated polymers are focused on, and then the topic moves to phosphorescent organometallic emitters affording high device efficiencies. In the last part, organic TADF emitters are reviewed, which can realize the 100% internal quantum efficiency of electroluminescence in theory without the employment of precious metal-containing organometallic structures.

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Metadata
Title
Luminescent Materials for Organic Light-Emitting Diodes
Author
Shigeyuki Yagi
Copyright Year
2021
Publisher
Springer Singapore
DOI
https://doi.org/10.1007/978-981-33-4392-4_16