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 1A, Ln2 is a ligand represented by Formula 1B, n1 is 1 or 2, and n2 is 1 or 2: wherein ring CY4 is a polycyclic C5-C30 carbocyclic group or a polycyclic C1-C30 heterocyclic group; Y1 is O, S, or Se; Z1 is —Si(Q1) (Q2) (Q3) or —Ge(Q1) (Q2) (Q3); a1 is 1, 2, 3, or 4; at least one of R1 and R2 is a substituted or unsubstituted C1-C60 alkyl group, a substituted or unsubstituted C3-C10 cycloalkyl group, or a substituted or unsubstituted C6-C60 aryl group; and the remaining substituent groups are as defined 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: An organometallic compound represented by Formula 1: M(L1)n1(L2)n2??Formula 1 wherein, in Formula 1, M, L1, L2, n1, and n2 may be understood by referring to the descriptions of M, L1, L2, n1, and n2 respectively as disclosed herein.

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 each the same as described in the present specification.

Abstract: A light-emitting device and an electronic apparatus including the same.

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

Abstract: An organometallic compound represented by Formula 1: M(L1)n1(L2)n2??Formula 1 wherein, in Formula 1, M, L1, L2, n1, and n2 may be understood by referring to the descriptions of M, L1, L2, n1, and n2 respectively as disclosed 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, n1 and n2 are each independently 1 or 2, and L1 and L2 are different from each other wherein X11 is Ge, X2 is O, S, Se, N(R29), C(R29a)(R29b), or Si(R29a)(R29b), A1 is C or N, A2 is C or N, A3 is C or N, and A4 is C or N, wherein one of A1 to A4 is C bonded to a neighboring pyridine group, and another of A1 to A4 is C bonded to M in Formula 1, and the remaining substituent groups are as defined herein.

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

Abstract: A light-emitting device including a first electrode, a second electrode opposing the first electrode, and an interlayer located between the first electrode and the second electrode, wherein the interlayer includes an emission layer, wherein the emission layer includes m1 dopants and m2 hosts, and m1 and m2 are each 1 or greater, when m1 is 2 or greater, then two or more of the dopants are different from each other, when m2 is 2 or greater, then two or more of the hosts are different from each other, and the light-emitting device satisfies Condition 1: 0 debye·V?DMEML×(Vop?Vinj)?3.41 debye·V??Condition 1 wherein Condition 1 may be understood by referring to the description provided herein.

Abstract: A composition, including m1 dopants; and m2 hosts, wherein m1 and m2 are each an integer of 1 or greater, when m1 is 2 or greater, two or more of the m1 dopants are different from each other, when m2 is 2 or greater, two or more of the m2 hosts are different from each other, and the composition has an image-modifying coordinate represented by: (X,Y) as defined herein.

Abstract: An organic light-emitting device comprising: 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 host and a dopant, the dopant is an organometallic compound including platinum, the organic light-emitting device satisfies a condition of: HOMO(D)?HOMO(Host 1)?0.2 electron volts, HOMO(D) is a highest occupied molecular orbital (HOMO) energy level of the dopant in electron volts, HOMO(Host 1) is a HOMO) energy level of the first host in electron volts, and HOMO(D) and HOMO(Host 1) are each measured using a photoelectron spectrometer in an ambient atmosphere.

Abstract: Provided are a light-emitting device and an electronic apparatus including the light-emitting device, the light-emitting device including: a first electrode; a second electrode; an emission layer arranged between the first electrode and the second electrode; and a buffer layer arranged between the first electrode and the emission layer, wherein the buffer layer is in direct contact with the emission layer, the emission layer includes a first compound represented by Formula 1, and the buffer layer includes a second compound represented by Formula 5. The first compound and the second compound are respectively the same as those described in the present specification.

Abstract: An organic light-emitting device including a first electrode, a second electrode, an emission layer disposed between the first electrode and the second electrode, a hole transport region disposed between the first electrode and the emission layer, and an electron transport region disposed between the emission layer and the second electrode, wherein the emission layer includes a host and a dopant, wherein the dopant is an iridium-free organometallic compound, and wherein a dopant concentration profile of the emission layer satisfies predetermined parameters disclosed in the specification.

Abstract: An organometallic compound represented by Formula 1: M(L1)n1(L2)n2??Formula 1 wherein, in Formula 1, M, L1, L2, n1, and n2 may be understood by referring to the descriptions of M, L1, L2, n1, and n2 respectively as disclosed herein.

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

Abstract: Provided is a display apparatus. The display apparatus may include an organic light-emitting device (OLED) substrate including a structure in which at least one blue emission unit and at least one green emission unit may be stacked and emitting mixed light of blue light and green light; and a color-controlling unit for controlling color of light generated from the OLED substrate.

Abstract: An organic light-emitting device comprising: 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 host and a dopant, the dopant is an organometallic compound including platinum, the organic light-emitting device satisfies a condition of: HOMO(D)?HOMO(Host 1)?0.2 electron volts, HOMO(D) is a highest occupied molecular orbital (HOMO) energy level of the dopant in electron volts, HOMO(Host 1) is a HOMO) energy level of the first host in electron volts, and HOMO(D) and HOMO(Host 1) are each measured using a photoelectron spectrometer in an ambient atmosphere.

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

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