In Situ Determination of the Orientation of the Emissive Dipoles in Light-Emitting Electrochemical Cells

PaperSetfos
Written By Fluxim AG

Ràfols-Ribé, J., Hänisch, C., Larsen, C., Reineke, S. and Edman, L. Adv. Mater. Technol. 2202120.

https://doi.org/10.1002/admt.202202120

This study explores emissive dipole orientation in light-emitting electrochemical cells (LECs) affecting emission efficiency. Using a destructive-interference microcavity method, researchers find ≈95% horizontal dipole orientation in LECs with Super Yellow emitters, enabling efficient photon outcoupling, despite strong perpendicular electric fields and ion motion.

LEC Optical Modeling and Fitting: The LEC devices were simulated with a Setfos.

Fluxim AG
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