Abstract
Using the lateral phases separation of a binary immiscible polymer blend, we have fabricated a random embossing structure (RES). The RES was investigated as a potential structure for organic light-emitting diode (OLED) light extraction. Our RES yields uniform light extraction in a broad angle (0°∼70°) range with spectral stability. Blue phosphorescence OLEDs equipped with the RES showed an enhancement of 20% in external quantum efficiency (EQE)and spectral stability within Δx,y < 0.01 in a viewing angle range of 0°∼70°. Our RES provides a new and practical approach for achieving enhanced efficiency and spectral stability of OLEDs.
Original language | English |
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Pages (from-to) | Q56-Q59 |
Journal | ECS Solid State Letters |
Volume | 3 |
Issue number | 11 |
DOIs | |
Publication status | Published - 2014 |
Bibliographical note
Publisher Copyright:© 2014 The Electrochemical Society.
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Electrical and Electronic Engineering