Abstract: An organometallic compound represented by Formula 1: M1(L1)n1(L2)n2??Formula 1 wherein, M1 is a transition metal, L1 is 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 to X4 are each independently C or N; Y1 is O, S, Se, C(R5)(R6), N(R7), or Si(R8)(R9); 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; * and *? each indicate a binding site to M1; and the remaining descriptions of Formulae 1A and 2B as described herein.

Abstract: An organometallic compound represented by Formula 1: M(L1)n1(L2)n2??Formula 1 wherein M is a transition metal, L1 is a ligand represented by Formula 2-1, L2 is a ligand represented by Formula 2-2 or a ligand represented by Formula 2-3, n1 and n2 are each independently 1 or 2, when n1 is 2, two L1 are identical to or different from each other, and when n2 is 2, two L2 are identical to or different from each other, and L1 and L2 are different from each other, wherein the groups in Formulae 2-1, 2-2, and 2-3 are each independently 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 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 to X4 are each C or N, ring CY1 and ring CY2 are each independently a C5-C30 carbocyclic group or a C1-C30 heterocyclic group, ring CY3 is a 6-membered heterocyclic group, a 6-membered heterocyclic group condensed with a C5-C30 carbocyclic group, or a 6-membered heterocyclic group condensed with a C1-C30 heterocyclic group, ring CY41 is a 5-membered carbocyclic group or a 5-membered heterocyclic group, Y1 is O, S, Se, C(R6)(R7), or N(R8), * and *? each indicate a binding site to M1, and the remaining description of Formulae 1A and 2B is as described herein.

Abstract: A cleaning composition for removing residues on surfaces contains a solvent and a cleaning accelerator, but does not contain an oxidant, wherein the cleaning accelerator includes at least one of a salt represented by Formula 1A or a salt represented by Formula 1B. A method of cleaning a metal-containing film includes preparing the cleaning composition, and bring the cleaning composition into contact with a metal-containing film provided on a substrate, the metal-containing film having a surface on which residues are generated.

Abstract: Provided are an organometallic compound represented by Formula 1, an organic light-emitting device including the same and an electronic apparatus including the organic light-emitting device: M(L1)n1(L2)n2??<Formula 1> wherein M, L1, L2, n1, and n2 in Formula 1 are the same as described in the detailed description.

Abstract: An organometallic compound represented by Formula 1: wherein, in Formula 1, groups and variables are the same as described in the specification. Organometallic compounds represented by Formula 1 may be suitable for use in an organic layer of an organic light emitting device.

Abstract: Provided are an organometallic compound represented by Formula 1, an organic light-emitting device including the same, and an electronic apparatus comprising the organic light-emitting device: M(L1)n1(L2)n2??Formula 1 wherein, in Formula 1, M, L1, L2, n1, and n2 are the same as described in the detailed description of the specification.

Abstract: An organometallic compound represented by 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 Formulae 1A and 1B are as described herein.

Abstract: An organic light-emitting device including a first electrode; a second electrode facing the first electrode; an interlayer arranged between the first electrode and the second electrode, wherein the interlayer comprises an emission layer; a first compound represented by Formula 1; and a second compound represented by Formula 2: wherein ring CY11 to ring CY14, ring CY23, and ring CY24 are each independently a C5-C30 carbocyclic group or a C1-C30 heterocyclic group; E1 is a group represented by Formula 1A; k1 is an integer from 1 to 5; n11 is an integer from 1 to 3; n12 is an integer from 0 to 3; X21 is N or C(R21a), X22 is N or C(R22a), X23 is N or C(R23a), and at least one of X21 to X23 is N; and the remaining substituents are as defined 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 Formulae 1A and 1B are as described in the specification.

Abstract: A heterocyclic compound represented by Formula 1, an organic light-emitting device including the same, and an electronic apparatus including the organic light-emitting device: wherein a detailed description of Formula 1 is provided in the specification.

Abstract: Provided are a heterocyclic compound represented by Formula 1A, an organic light-emitting device including the same, and an electronic apparatus including the organic light-emitting device: wherein a detailed description of Formula 1A is provided in the specification.

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

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

Abstract: An organometallic compound represented by Formula 1 and an organic light-emitting device including the same: Y2, ring A2, R1 to R8, R13 to R20, and d2 in Formula 1 may be each independently the same as described in the specification.

Abstract: An organometallic compound represented by Formula I, an organic light-emitting device including the same, and a diagnostic composition including the organometallic compound.

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, n1 and n2 are each independently 1 or 2, Formula 1A Formula 1B wherein X1 to X4 are each independently C or N, rings 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), provided that each of Z1 and Z2 is not —SiH3, a1 and a2 are each independently an integer from 0 to 10, a sum of a1 and a2 is 1 or greater, Y1 and Y2 are each independently O, S, Se, or C(R5)(R6), * and *? each indicates a binding site to M1, and R1 to R3, R5, R6, and R41 to R48 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 ring CY1, ring CY2, ring CY4, R1, R2, R4, R31, R32, X1 to X4, Y1, Z1, Z2, a1, a2, b1, b2, b31, b32, and b4 in Formulae 1A and 1B are respectively as described herein, and * and *? each indicate a binding site to M1.

Abstract: Provided are an etching composition including an oxidizing agent, an ammonium salt, an aqueous solvent, and an accelerator, a method of preparing a metal-containing film etching by using the same, and a method of manufacturing a semiconductor device by using the same.

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, the organic layer includes an emission layer, wherein the organic layer further includes a hole transport region arranged between the first electrode and the emission layer, the hole transport region includes an emission auxiliary layer, the emission layer includes a first compound that is an organometallic compound represented by Formula 1, the emission auxiliary layer includes a second compound that is a heterocyclic compound represented by Formula 2: wherein, in Formulae 1 and 2, Y2 is C, ring A2 is a C5-C30 carbocyclic group or a C1-C30 heterocyclic group, and R1 to R8, R13 to R20, R31 to R37, d2, X30, Z1, are as described in the detailed description.