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Carbene‐metal‐amides (CMA) are an exciting class of materials for high‐efficiency organic light‐emitting diodes. In article number 1802285, Dan Credgington and co‐workers demonstrate that vacuum‐processing can be successfully used to fabricate CMA devices with tunable emission color and high external quantum efficiency (EQE) up to 26.9%, including host‐free devices achieving EQE of up to 23%.
Efficient vacuum‐processed organic light‐emitting diodes are fabricated using a carbene–metal–amide material, CMA1. An electroluminescence (EL) external quantum efficiency of 23% is achieved in a host‐free emissive layer comprising pure CMA1. Furthermore external quantum efficiencies of up to 26.9% are achieved in host–guest emissive layers. EL spectra are found to depend on both the emissive‐layer...
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