The present application provides a heterocyclic compound capable of significantly enhancing lifetime, efficiency, electrochemical stability and thermal stability of an organic light emitting device, and an organic light emitting device including the heterocyclic compound in an organic material layer.

The present disclosure features a luminescent molecule, including a luminophore (e.g., a fluorescent dye); and a moiety including a heteroaryl core covalently and directly bonded to the luminophore. The luminescent molecule has an increased photoluminescence quantum yield relative to an analogous luminophore without a covalently bonded moiety including the heteroaryl core.

An apparatus, a system, sensor, and a method for determining dissolved oxygen content in air and aqueous medium are disclosed herein. The dissolved oxygen content may be determined by irradiating the sensor comprising at least a photo-oxidizable compound by a light irradiation source, wherein the irradiation enables the photo-oxidizable compound to change its luminescent properties based upon photo-oxidation thereby enabling the quantification of the dissolved oxygen content in the medium. The dissolved oxygen content may be captured via the impedance response generated by interdigitated conducting electrode patterns included in the sensor. The dissolved oxygen content registered by the interdigitated conducting electrode patterns may be transmitted to a user device via a short range or long-range communication via an electronic circuit embedded within the sensor.

A fused ring compound and applications thereof in organic electronic components, particularly in organic electroluminescent diodes; an organic electronic component comprising the fused ring compound, and applications thereof in organic electroluminescent diodes and in display and lighting technologies; and a formulation comprising the fused ring compound, and applications thereof in the preparation of organic electronic components. By optimizing the component structure, good component performance can be achieved, and especially, a high-performance OLED component can be implemented, which provide good material and preparation technology choices for full-color display and lighting applications.

A nitrogen-containing compound as shown in Chemical formula (1), an electronic element, and an electronic device are provided. In Chemical formula (1), Ar.sub.1 and Ar.sub.2 are selected from a substituted or unsubstituted C6 to C30 aryl, a substituted or unsubstituted C3 to C30 heteroaryl, or a substituted or unsubstituted C3 to C20 cycloalkyl; Ar.sub.3 is selected from a substituted or unsubstituted C6 to C20 aryl, or a substituted or unsubstituted C3 to C20 heteroaryl.

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The present specification relates to an ink composition including: a compound represented by Formula 1; and a solvent represented by the Formula 2, and a method for manufacturing an organic light emitting device formed by using the ink composition.

A composition contains an organic compound and an anthracene compound different from the organic compound, the anthracene compound having a hydrogen atom at at least one of positions 9 and 10, in which the concentration of the anthracene compound is 100 ppm or less. Additionally, a long-lived organic light-emitting device includes an organic compound layer containing a reduced concentration of the anthracene compound.

A compound of:

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is disclosed. In Formula III, ring B and ring C are each independently a 5 or 6-membered carbocyclic or heterocyclic ring; A-B represents a bonded pair of carbocyclic or heterocyclic rings coordinated to a metal M via a nitrogen atom in ring A and an sp.sup.2 hybridized atom in ring B; A-C represents a bonded pair of carbocyclic or heterocyclic rings; M is a metal having an atomic number greater than 40; L′ is a monoanionic bidentate ligand; m is the oxidation state of the metal M; and n is at least 1.

The invention relates to an electronic device, to the use thereof, and to a method for the production thereof.

An organic electroluminescence device includes a first electrode, a hole transport region on the first electrode, an emission layer on the hole transport region, an electron transport region on the emission layer, and a second electrode on the electron transport region. The hole transport region includes a monoamine compound represented by the following Formula 1:

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