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Multiple Strategies Marching toward High-Efficiency White Organic Light-Emitting Diodes by Vacuum Deposition Method

Abstract

White organic light-emitting diodes (WOLEDs) have been regarded as the most promising technology in next-generation solid-state lighting. It is still a challenge to achieve high-efficiency, low roll-off and good stability in WOLEDs toward their practical application. Meanwhile, simplifying device structure, lowering the cost by material and device design are also the hot spots in academic and industrial field for WOLEDs. In this review, we will firstly introduce the basic working mechanism and performance evaluation of WOLEDs. Then, the development of WOLEDs will be summarized according to the sequence of all phosphorescent WOLEDs, hybrid WOLEDs, all fluorescence WOLEDs, doping-free WOLEDs and single-emitter WOLEDs. Especially, the doping-free WOLEDs, single-emitter WOLEDs as well as WOLEDs containing thermally activated delayed fluorescence (TADF) materials have got a flourish development in the past few years which will be introduced in detail in this review.

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Article information


Submitted
07 Jan 2020
Accepted
09 Mar 2020
First published
23 Mar 2020

J. Mater. Chem. C, 2020, Accepted Manuscript
Article type
Review Article

Multiple Strategies Marching toward High-Efficiency White Organic Light-Emitting Diodes by Vacuum Deposition Method

H. Liu, F. Liu and P. Lu, J. Mater. Chem. C, 2020, Accepted Manuscript , DOI: 10.1039/D0TC00085J

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