Efficient Vacuum‐Processed Light‐Emitting Diodes Based on Carbene–Metal–Amides

Abstract: 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 doping concentration and the choice of host material, enabling tuning of emission color from mid‐green (Commission Internationale de l'Éclairage co‐ordinates [0.24, 0.46]) to sky blue ([0.22 0.35]) without changing dopant. This tuning is achieved without compromising luminescence efficiency (>80%) while maintaining a short radiative lifetime of triplets (<1 μs).

Angaben zum Objekt

• Standort: Deutsche Nationalbibliothek Frankfurt am Main
• Umfang: Online-Ressource
• Sprache: Englisch

Verweise und Beziehungen

• Erschienen in: Efficient Vacuum‐Processed Light‐Emitting Diodes Based on Carbene–Metal–Amides ; volume:30 ; number:35 ; year:2018 ; extent:5 ; Advanced materials ; 30, Heft 35 (2018) (gesamt 5)

Beteiligte, Orts- und Zeitangaben

• Urheber: Conaghan, Patrick J. ; Menke, S. Matthew ; Romanov, Alexander S. ; Jones, Saul T. E. ; Pearson, Andrew ; Evans, Emrys W. ; Bochmann, Manfred ; Greenham, Neil C. ; Credgington, Dan

Weitere Informationen

• DOI: 10.1002/adma.201802285
• URN: urn:nbn:de:101:1-2022090719200183321807
• Rechteinformation: Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
• Letzte Aktualisierung: 01.08.2025, 09:13 MESZ