Abstract: Provided are a composition and an organic light-emitting device including the same, wherein the composition includes a platinum-containing organometallic compound, a first compound, a second compound, and a third compound.

Abstract: An organometallic compound represented by Formula 1: M(L1)n1(L2)n2??Formula 1 In Formula 1, M is a transition metal; L1 is a ligand represented by Formula 2 as disclosed herein; L2 is a monodentate ligand, a bidentate ligand, a tridentate ligand, or a tetradentate ligand; n1 is 1, 2, or 3, wherein, when n1 is 2 or greater, two or more ligands L1 are identical to or different from each other; n2 is 0, 1, 2, 3, or 4, wherein, when n2 is 2 or greater, two or more ligands L2 are identical to or different from each other; and L1 and L2 are different from each other.

Abstract: An organometallic compound represented by Formula 1: wherein, in Formula 1, M is a transition metal, X1 to X4 each independently C or N, X5 is O, S, N(R?), C(R?)(R?), or C(?O), wherein a bond between X5 and M is a covalent bond, and one of a bond between X2 and M, a bond between X3 and M, and a bond between X4 and M is a covalent bond, and the other two are each a coordinate bond, ring CY1 to ring CY4 are each independently a C5-C30 carbocyclic group or a C1-C30 heterocyclic group, and wherein T1 to T4, n1 to n4, Z1 to Z4, d1 to d4, L1 to L4, R1 to R4, a1 to a4, b1 to b4, and c1 to c4 are as provided herein.

Abstract: A condensed cyclic compound represented by Formula 1: Ar1-L1-L2-Ar2??Formula 1 wherein Ar1, Ar2, L1, and L2 are the same as described in the specification.

Abstract: An organometallic compound represented by Formula 1: Formula 1 M1(L1)n1(L2)n2 wherein M1 is a transition metal, L1 is a ligand represented by Formula 1A, L2 is a ligand represented by Formula 1B, and n1 and n2 are each independently 1 or 2: wherein Y1 is O, S, or Se; Z1 and Z2 are each independently —Si(Q1)(Q2)(Q3) or —Ge(Q1)(Q2)(Q3); a1 and a2 are each independently an integer from 0 to 10; a sum of a1 and a2 is 1 or greater; * and *? each indicate a binding site to M1; and the descriptions of the remaining substituents in Formulae 1A and 1B are as provided herein.

Abstract: A light-emitting device including a first electrode, a second electrode facing the first electrode, and an interlayer arranged between the first electrode and the second electrode, wherein the interlayer includes an emission layer and an emission auxiliary layer, the emission auxiliary layer is arranged between the emission layer the first electrode, the emission layer includes a first host and a first dopant, the emission auxiliary layer includes a second host and a second dopant, and the second dopant is represented by Formula 1: wherein a detailed description of Formula 1 is as provided herein.

Abstract: Provided are a composition and an organic light-emitting device including the same, wherein the composition includes a platinum-containing organometallic compound, a first compound, a second compound, and a third compound.

Abstract: An organometallic compound represented by Formula 1: wherein, in Formula 1, M is a transition metal, X1 to X4 each independently C or N, X5 is O, S, N(R?), C(R?)(R?), or C(?O), wherein a bond between X5 and M is a covalent bond, and one of a bond between X2 and M, a bond between X3 and M, and a bond between X4 and M is a covalent bond, and the other two are each a coordinate bond, ring CY1 to ring CY4 are each independently a C5-C30 carbocyclic group or a C1-C30 heterocyclic group, and wherein T1 to T4, n1 to n4, Z1 to Z4, d1 to d4, L1 to L4, R1 to R4, a1 to a4, b1 to b4, and c1 to c4 are as provided herein.

Abstract: Provided are an organometallic compound represented by Formula 1 and an organic light-emitting device including the same: wherein, in Formula 1, Y1, Y2, Xa, Xb, ring CY1, ring CY2, R1, R2, A1 to A7, a1, and a2 are as defined in the specification.

Abstract: An organometallic compound represented by Formula 1: M1(L1)n1(L2)n2??Formula 1 wherein, M1 is a transition metal, L1 is a ligand represented by Formula 1A, L2 is a ligand represented by Formula 1B, and n1 and n2 are each independently 1 or 2: with the proviso that i) X43 is C linked to Y2 in Formula 2 and X44 is C linked to Y3 in Formula 2; ii) X44 is C linked to Y2 in Formula 2 and X45 is C linked to Y3 in Formula 2; or iii) X45 is C linked to Y2 in Formula 2 and X46 is C linked to Y5 in Formula 2; wherein the remaining substituent groups of Formulae 1A, 1B, and 2 are as provided herein.

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: wherein, in Formula 1, R1 to R9, R21 to R23, and A1 to A7 are each independently the same 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 first material not including an electron transport moiety, a second material including at least one electron transport moiety, a third material having reorganization energy of about 0.4 eV or more, and a light-emitting material, wherein the first material, the second material, the third material, and the light-emitting material are different from one another, and wherein a ratio of a light-emitting component emitted from the light-emitting material to a total of light-emitting components emitted from the emission layer is about 90% or more.

Abstract: An organic light-emitting device, including a first electrode, a second electrode, and an organic layer arranged between the first electrode and the second electrode, wherein the organic layer includes an emission layer and an n-doped layer, the n-doped layer is arranged between the first electrode and the emission layer, the emission layer includes at least one organometallic compound, and the at least one organometallic compound includes at least one silyl group or at least one germyl group.

Abstract: An organometallic compound represented by Formula 1: M1(L1)n1(L2)n2??Formula 1 wherein, M1 is a transition metal, L1 is a ligand represented by Formula 1A, L2 is a ligand represented by Formula 1B, and n1 and n2 are each independently 1 or 2, wherein X11 is C(R11) or N, X12 is C(R12) or N, X13 is C(R13) or N, and X14 is C(R14) or N; at least one of R11 to R14 is —Si(Q1)(Q2)(Q3) or —Ge(Q1)(Q2)(Q3); R32 and R33 each comprises deuterium; * and *? each indicate a binding site to M1 in Formula 1; and the other substituent groups in Formulae 1A and 1B are as defined herein.

Abstract: An organic light-emitting device which 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 an emission layer includes a first material, a second material, and a third material satisfying certain conditions.

Abstract: Provided are an organometallic compound represented by Formula 1 and an organic light-emitting device including the same: M1(Ln1)n1(Ln2)3-n1 ??Formula 1 wherein, in Formula 1, Ln2 is a ligand represented by Formula 1A, and other substituents are the same as described in the detailed description of the present specification:

Abstract: An organometallic compound represented by Formula 1: M1(L1)n1(L2)n2??Formula 1 wherein, M1 is a transition metal, L1 is a ligand represented by Formula 1A, L2 is a ligand represented by Formula 1B, and n1 and n2 are each independently 1 or 2, wherein X1 is C or N; X2 is C or N; X3 is C or N; X4 is C or N; ring CY1 and ring CY2 are each independently a C5-C30 carbocyclic group or a C1-C30 heterocyclic group; Z1 and Z2 are each independently —Si(Q1)(Q2)(Q3) or —Ge(Q1)(Q2)(Q3); a1 and a2 are each independently an integer from 0 to 10; a sum of a1 and a2 is 1 or greater; and the remaining substituent groups are as described herein.

Abstract: An organometallic compound represented by Formula 1: M1(L1)n1(L2)n2??Formula 1 wherein, in Formula 1, M1 is a transition metal, L1 is a ligand represented by Formula 1A, L2 is a ligand represented by Formula 1B, and n1 and n2 are each independently 1 or 2: wherein, X1 is C or N, X2 is C or N, Y1 is O, S, Se, C(R41)(R42), or N(R43), at least one R2 is a C1-C10 alkyl group that is substituted with a fluorine, b2 is an integer from 1 to 6, b11 is 1 or 2, b12 is an integer from 1 to 4, * and *? each indicate a binding site to M1, and the other substituent groups in Formulae 1A and 1B are as described herein.

Abstract: An organometallic compound represented by Formula 1: M1(L1)n1(L2)n2??Formula 1 wherein M1 is a transition metal, L1 is a ligand represented by Formula 1A, L2 is a ligand represented by Formula 1B, and n1 and n2 are each independently 1 or 2, wherein X1 and X2 are each independently C or N, ring CY2 and ring CY4 are each independently a C5-C30 carbocyclic group or a C1-C30 heterocyclic group, ring CY3 is a 5-membered heterocyclic group; a 5-membered heterocyclic group condensed with a C5-C30 carbocyclic group; or a 5-membered heterocyclic group condensed with a C1-C30 heterocyclic group, Y1 is O, S, Se, C(R5)(R6), N(R7), Si(R8)(R9), or Ge(R8)(R9), at least one of R12 and R13 comprises deuterium, and the other substituent groups are as described herein.

Abstract: An organometallic compound represented by Formula 1: M1(Ln1)n1(Ln2)n2??Formula 1 wherein M1 is a transition metal, Ln1 is a ligand represented by Formula 1-1, Ln2 is a bidentate ligand, n1 is 1, 2, or 3, and n2 is 0, 1, or 2, wherein X1, X2, X11 to X14, Y1, R10, R20, ring CY2, b10, and b20 are as defined herein, and wherein * and *? each indicate a binding site to M1.