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: 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 and an electron transport layer disposed between the emission layer and the second electrode, the electron transport layer comprises a first electron transport layer disposed between the emission layer and the second electrode and a second electron transport layer disposed between the first electron transport layer and the second electrode, the first electron transport layer comprises a first metal-free compound, the second electron transport layer comprises a second metal-free compound, the first metal-free compound and the second metal-free compound are different from each other, and the second metal-free compound is represented by Formula 2 as provided herein.

Abstract: A condensed cyclic compound represented by Formula 1: wherein in Formula 1, Ar11, Ar12, R11, R12, R13, and R14 are the same as described in the specification.

Abstract: A thin film including a combination of a donor compound and an acceptor compound, and a phosphorescent dopant, wherein the donor compound and the acceptor compound form an exciplex having characteristics described in the specification.

Abstract: An organic light-emitting device 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 includes an emission layer, wherein the an emission layer including an auxiliary dopant, a fluorescent dopant, and a host, wherein the auxiliary dopant includes a compound represented by Formula 1, and wherein the fluorescent dopant emits prompt fluorescence: wherein in Formula 1, groups and variables are the same as described in the specification.

Abstract: A composition including a first compound represented by Formula 1, a second compound represented by Formula 2, and a third compound satisfying a specified condition: A11-L11-A12??Formula 1 A21-(L21)a21-A22??Formula 2 wherein, in Formulae 1 and 2, A11, A12, A21, A22, L11, L21, and a21 are the same as described in the specification.

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 includes a first electrode layer; a hole injection layer on the first electrode layer; a hole transport layer on the hole injection layer; an electron blocking layer on the hole transport layer, and including a plurality of layers; a light-emitting layer on the electron blocking layer; an electron transport layer on the light-emitting layer; an electron injection layer on the electron transport layer; and a second electrode layer on the electron transport layer, wherein the electron blocking layer has a highest occupied molecular orbital value which is lower than a highest occupied molecular orbital value of the hole transport layer, and the light-emitting layer has a HOMO value which is lower than a highest occupied molecular orbital value of the electron blocking layer.

Abstract: A composition including a donor compound and an acceptor compound, wherein the donor compound and the acceptor compound form an exciplex having characteristics described in the specification.

Abstract: A composition including a first compound represented by Formula 1 and a second compound represented by Formula 2: Ar1-(L1)a1-Ar2??Formula 1 Ar11-(L11)a11-Ar12??Formula 2 wherein Ar1, Ar2, Ar11, Ar12, L1, L11, a1, and a11 are the same as described in the specification.

Abstract: A thin film including a combination of a donor compound and an acceptor compound, and a phosphorescent dopant, wherein the donor compound and the acceptor compound form an exciplex having characteristics described in the specification.

Abstract: An organometallic compound represented by Formula 1, wherein the organometallic compound has a horizontal orientation ratio of a transition dipole moment in a range of about 85 percent to about 100 percent: M(L1)n??Formula 1 wherein, in Formula 1, M is selected from a first-row transition metal of the Periodic Table of Elements, a second-row transition metal of the Periodic Table of Elements, and a third-row transition metal of the Periodic Table of Elements, n is 2 or 3, L1 is a bidentate organic ligand bound to M, wherein L1 does not comprise a fluoro group (—F), and wherein L1 groups in the number of n are identical to each other.

Abstract: A silyl group-containing 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 one of Formulae 1 to 4: wherein, in Formulae 1 to 4, 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 organic light-emitting device 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 includes an emission layer, wherein the emission layer includes a host and a dopant, and wherein the organic light-emitting device satisfies predetermined conditions described in the specification.

Abstract: A condensed cyclic compound represented by Formula 1, comprising at least one cyano (—CN) group: wherein, in Formula 1, groups and variables are the same as described in the specification.

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

Abstract: An organic light-emitting device includes a first electrode layer; a hole injection layer on the first electrode layer; a hole transport layer on the hole injection layer; an electron blocking layer on the hole transport layer, and including a plurality of layers; a light-emitting layer on the electron blocking layer; an electron transport layer on the light-emitting layer; an electron injection layer on the electron transport layer; and a second electrode layer on the electron transport layer, wherein the electron blocking layer has a highest occupied molecular orbital value which is lower than a highest occupied molecular orbital value of the hole transport layer, and the light-emitting layer has a HOMO value which is lower than a highest occupied molecular orbital value of the electron blocking layer.

Abstract: A silyl group-containing compound represented by Formula 1: wherein, in Formula 1, groups and variables are the same as described in the specification.