2013•Advanced MaterialsRequires access

High‐Performance Hybrid White Organic Light‐Emitting Devices without Interlayer between Fluorescent and Phosphorescent Emissive Regions

Ning Sun, Qi Wang, Yongbiao Zhao, Yonghua Chen, Dezhi Yang, Fangchao Zhao, Jiangshan Chen, Dongge Ma

Abstract

By using mixed hosts with bipolar transport properties for blue emissive layers, a novel phosphorescence/fluorescence hybrid white OLED without using an interlayer between the fluorescent and phosphorescent regions is demonstrated. The peak EQE of the device is 19.0% and remains as high as 17.0% at the practical brightness of 1000 cd m(-2) .

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Key concepts: Phosphorescence, Fluorescence, Materials science, OLED, Phosphorescent organic light-emitting diode, Brightness, Optoelectronics, Photochemistry