Blue Iridium (III) Phosphorescent OLEDs with High Brightness Over 10 000 cd m⁻² and Ultralow Efficiency Roll‐Off

Abstract

The ORCID identification number(s) for the author(s) of this article can be found under https://doi.org/10.1002/adom.202201998.

Synthesis and Photophysical Properties of Monometallic C^C* Platinum(II) Formamidinate Complexes using Sterically Demanding Ligands

“…An important application for luminescent transition metal complexes is the fabrication of state of the art organic light emitting diodes (OLEDs). [1][2][3][4][5][6][7][8][9] Next to iridium, [10][11][12][13][14][15][16][17] platinum is one of the most frequently used transition metals for phosphorescent triplet emitters in an OLED's emissive layer. [18][19][20][21][22][23] Among diverse motifs C^C* cyclometalating ligands based on N-heterocyclic carbenes (NHCs) have been receiving large recognition in the literature as an alternative to the well-known C^N cyclometalating ligands in luminescent transition metal complexes.…”

Theoretical investigation of the influence of heterocycles on the radiative and non-radiative decay processes of iridium(iii) complexes

“…Therefore, constructing a satisfactory structure and choosing suitable substituents are crucial for achieving Ir( iii ) cyclometalates with suitable properties. 12–16…”

“…Therefore, constructing a satisfactory structure and choosing suitable substituents are crucial for achieving Ir(III) cyclometalates with suitable properties. [12][13][14][15][16] For Ir(III) complexes, as well as other complexes, the emission color can be tuned via introducing 17 various substituents or incorporating novel chelating ligands, in which they can change the lowest unoccupied molecular orbital (LUMO) and the highest occupied molecular orbital (HOMO). Compared with the intrinsic limitation of substituents, a strategic design for incorporating novel chelating ligands is essential.…”

Synthese und photophysikalische Eigenschaften monometallischer C^C* Platin(II)‐Formamidinatkomplexe mit sterisch anspruchsvollen Liganden

“…Eine wichtige Anwendung von photolumineszenten Übergangsmetallkomplexen ist ihr Einsatz in modernen organischen Leuchtdioden (OLEDs). [1][2][3][4][5][6][7][8][9] Iridium [10][11][12][13][14][15][16][17] und Platin sind die am häufigsten verwendeten Übergangsmetalle phosphoreszierender Triplettemitter, die in der Emitterschicht einer OLED eingesetzt werden. [18][19][20][21][22][23] Neben verschiedenen weiteren Motiven haben C^C* zyklometallierte Li-ganden auf Basis von N-heterozyklischen Carbenen (NHCs) in der Literatur große Aufmerksamkeit als Alternative zu den bekannten C^N zyklometallierten Liganden in lumineszenten Metallkomplexen gefunden.…”