Ultrahigh-luminance organic light-emitting diodes using LiF/MgAg as cathode for the application of both surface emission. (3rd July 2017)

• Record Type: Journal Article
• Authors: Li, Chunya; Tang, Zhenyu; Si, Changfeng; Pan, Saihu; Zheng, Yanqiong; Chen, Guo; Zhu, Wenqing; Yang, Lianqiao; Wei, Bin
• Is Part Of: Molecular crystals and liquid crystals. Volume 651(2017)
• Page Start: 142
• Page End: 147
• Publication Date: 2017-07-03
• Subjects: Cathode species -- high-luminance -- organic light-emitting diodes -- transparent; Molecular crystals -- Periodicals; Liquid crystals -- Periodicals; Liquid crystals; Molecular crystals; Periodicals; 548
• DOI: 10.1080/15421406.2017.1338082
• Languages: English
• ISSNs: 1542-1406

Abstract

ABSTRACT: The effect of different species of cathode on the performance of organic light-emitting diodes under direct current drive has been investigated in this paper. The organic light-emitting diode using LiF/Al and LiF/MgAg layer as cathode has been fabricated, and the luminance of device with cathode structure of LiF/MgAg was found to realize higher efficiency. The performance of the device was found to be improved greatly due to efficient electron injection from MgAg cathode. Moreover, a configuration of LiF/MgAg/IZO (indium zinc oxide) was developed, finding that both the top-emitting intensity and the bottom-emitting intensity achieve very-high luminance, and in this basis, transparent OLEDs with the extremely high-luminance of about 100, 000 cd/m 2 has been realized, which is considered as the highest luminance among the previous works.