Design and Synthesis of Asymmetric Au(III) Complexes Exhibiting Bright Anisotropic Emission for High-Performance Organic Light-Emitting Diodes

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Written By Fluxim AG

Kuo, H.-H., Kumar, S., Omongos, R. L., T. do Casal, M., Usteri, M. E., Wörle, M., Escudero, D., Shih, C.-J.,

Adv. Optical Mater. 2023, 2202519.

https://doi.org/10.1002/adom.202202519

Researchers have developed efficient phosphorescent emitters using abundant Au(III) complexes with asymmetric C^C^N ligands and carbazole moieties. The synthesized complexes exhibit shortened radiative lifetimes and high photoluminescence quantum yields, reaching over 93% in thin films. As a result, high-performance OLED devices demonstrate record-high external quantum efficiencies and current efficiencies, paving the way for the molecular design of anisotropic Au(III) emitters in next-generation optoelectronics.

The researchers quantified the horizontal dipole ratios in thin-films using the angular-dependent PL spectroscopy by fitting the experimental p-polarized (p-pol) angular PL intensity as a function of viewing angle with optical simulations using Setfos.

Fluxim AG
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