Abstract: An organometallic compound represented by Formula 1, wherein M1 is beryllium, magnesium, aluminum, calcium, titanium, manganese, cobalt, copper, zinc, gallium, germanium, zirconium, ruthenium, rhodium, palladium, silver, rhenium, platinum, or gold; A1 to A3 are each independently a C5-C30 carbocyclic group or a C1-C30 heterocyclic group; A4 is a 5-membered heterocyclic group; A5 is at least two rings of a C7-C30 carbocyclic group comprising a 6-membered carbocyclic group, or A5 is at least two rings of a C1-C30 heterocyclic group comprising a 6-membered carbocyclic group or a 6-membered heterocyclic group; X10, X20, X30, and X40 to X44 are each independently C or N; T1 to T3 are each independently a single bond, *—N[(L1)a1-(R1)b1]—*?, *—B(R1)—*?, *—P(R1)—*?, *—C(R1)(R2)—*?, *—Si(R1)(R2)—*?, *—Ge(R1)(R2)—*?, *—S—*?, *—Se—*?, *—O—*?, *—C(?O)—*?, *—S(?O)—*?, *—S(?O)2—*?, *—C(R1)?C(R2)—*?, *—C(?S)—*?, or *—C?C—*?; and wherein the other substituents may be understood by referring to the detailed description.

Abstract: Provided are an organometallic compound represented by Formula 1, an organic light-emitting device including the organometallic compound, and a diagnostic composition including the organometallic compound.

Abstract: Provided are an organometallic compound represented by Formula 1, an organic light-emitting device including the organometallic compound, and a diagnostic composition including the organometallic compound.

Abstract: An organometallic compound represented by Formula 1, an organic light-emitting device including the organometallic compound, and a diagnostic composition including the organometallic compound are provided: M1(L11)n11(L12)n12??Formula 1 wherein, in Formula 1, L11 may be a ligand represented by Formula 1-1, and the other substituents may be understood by referring to the descriptions thereof provided in the detailed description:

Abstract: An organometallic compound represented by Formula 1, an organic light-emitting device including the organometallic compound, and a diagnostic composition including the organometallic compound: M11(L11)n11(L12)n12??Formula 1 wherein, in Formula 1, M11 is a first-row transition metal, a second-row transition metal, or a third-row transition metal, L11 is a ligand represented by Formula 1-1, L12 is a monodentate ligand or a bidentate ligand, n11 is 1, and n12 is 0, 1, or 2: wherein, in Formula 1-1, Y11, A11, T11 k11, k12, k13, b11, E11 to E13 and R11 to R17 are described in the specification, and *1 to *4 each independently indicate a binding site to M11.

Abstract: Provided is an organic light-emitting device including a first electrode; a second electrode; and an organic layer between the first electrode and the second electrode and comprising an emission layer, wherein the organic layer includes at least one condensed cyclic compound represented by Formula 1.

Abstract: A composition comprising a first compound, a second compound, and a third compound, wherein the first compound, the second compound, and the third compound are different from each other, the first compound satisfies one of Condition 1 and Condition 2 as described herein, and the second compound includes a compound represented by Formula 1: wherein ring A1 is a condensed cyclic group in which 3 or more cyclic groups are condensed with each other, and the 3 or more cyclic groups are each a C5-C30 carbocyclic group or a C1-C30 heterocyclic group; a1 is an integer from 1 to 5; b1 is an integer from 3 to 10; and L1, R1, and R2 are as described herein.

Abstract: An organic light-emitting device including a predetermined host and a thermally activated delayed fluorescence emitter.

Abstract: Presented is an organic light-emitting device including a host, a dopant, and a sensitizer.

Abstract: A condensed cyclic compound represented by Formula 1 and an organic light-emitting device including the same: wherein, in Formulae 1, Y11 is a group represented by Formulae 2-1 to 2-3 and Y12 is a group represented by Formulae 3-1 to 3-5, 4-1, or 4-2 as described herein.

Abstract: A condensed-cyclic compound represented by Formula 1 and an organic light-emitting device including the same: wherein, in Formula 1, A11 is a group represented by Formulae 2-1 to 2-3 as described herein.

Abstract: An organic light-emitting device including a first electrode, a second electrode facing the first electrode, and an emission layer disposed between the first electrode and the second electrode, wherein the emission layer includes a predetermined host and a thermally activated delayed fluorescence emitter.

Abstract: An organic light-emitting device including a first electrode; a second electrode; and an organic layer between the first electrode and the second electrode and including an emission layer, wherein the emission layer may include a host and a dopant, and the host may include at least one silane compound represented by Formula 1: wherein, in Formula 1, the substituents may be understood by referring to the detailed description.

Abstract: An organometallic compound represented by Formula 1: M(L1)n1(L2)n2(L3)n3??Formula 1 wherein in Formula 1, M, L1, L2, L3, n1, n2, and n3 are the same as defined in the specification.

Abstract: An organic light-emitting device including an emission layer including a first electrode; a second electrode facing the first electrode; and an organic layer disposed between the first electrode and the second electrode, wherein the organic layer comprises an emission layer, the emission layer comprises a first compound, a second compound, and a third compound, and the first compound and the second compound are different from each other, each of the first compound and the second compound emits light, the third compound does not emit light, and the first compound and the second compound satisfy Conditions and Inequalities as described herein.

Abstract: A condensed cyclic compound represented by Formula 1: wherein, in Formula 1, A1, D1, and R11 to R14 are the same as described in the specification.

Abstract: Provided is an organic light-emitting device including an emission layer including a first compound, a second compound, a third compound, and a fourth compound, each satisfying a certain condition.

Abstract: Provided are an organometallic compound represented by Formula 1, an organic light-emitting device including the organometallic compound, and a diagnostic composition including the organometallic compound. In Formula 1, substituents may be understood as described in the detailed description.

Abstract: Provided is an organic light-emitting device including an emission layer that includes a sensitizer, a fluorescent emitter, and a host.

Abstract: A condensed cyclic compound represented by Formula 1: wherein, in Formula 1, groups and variables are the same as described in the specification.