A light emitting element that includes a first electrode, a second electrode facing the first electrode, and an emission layer between the first electrode and the second electrode is provided. The emission layer includes a polycyclic compound represented by Formula 1. The light emitting element has a reduced driving voltage and an increased efficiency.

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A photoelectric device includes a first electrode, a second electrode, a photoelectric conversion layer between the first electrode and the second electrode, and a charge transport layer between the first electrode and the photoelectric conversion layer. The photoelectric conversion layer is configured to absorb light in a wavelength spectrum and converting the absorbed light into an electrical signal. The charge transport layer includes a first charge transport material and a second charge transport material which collectively define a heterojunction.

This invention discloses oligosilane compounds. These compounds can be used in OLEDs.

This invention discloses oligosilane compounds. These compounds can be used in OLEDs.

Provided are a condensed cyclic compound and an organic light-emitting device including the same. The organic light-emitting device may include a first electrode, a second electrode, and an organic layer disposed between the first electrode and the second electrode. The organic layer may include the condensed cyclic compound represented by Formula 1: ##STR00001## In Formula 1, rings A.sub.1, A.sub.2, and A.sub.3 may each be independently a C.sub.5-C.sub.60 carbocyclic group or a C.sub.2-C.sub.30 heterocyclic group, and n1 to n3 may each be independently 0 or 1, provided that the sum of n1, n2, and n3 is 1. In addition, the descriptions of X.sub.1, L.sub.1 to L.sub.9, a1 to a9, Ar.sub.1 to Ar.sub.6, b1 to b6, R.sub.1 to R.sub.3, and c1 to c3 are as defined in the present specification.

The present specification relates to an organic light emitting device comprising a first electrode, a second electrode, and an organic material layer comprising one or more layers provided between the first electrode and the second electrode, wherein the one or more layers of the organic material layer comprise a heterocyclic compound represented by Chemical Formula 1 and a heterocyclic compound represented by Chemical Formula 2, a composition for the organic material layer of the organic light emitting device, and a method for manufacturing the organic light emitting device.

The present specification relates to an organic light emitting device comprising a first electrode, a second electrode, and an organic material layer comprising one or more layers provided between the first electrode and the second electrode, wherein the one or more layers of the organic material layer comprise a heterocyclic compound represented by Chemical Formula 1 and a heterocyclic compound represented by Chemical Formula 2, a composition for the organic material layer of the organic light emitting device, and a method for manufacturing the organic light emitting device.

Systems and methods are provided for simulating traction power and control in transportation systems under design conditions and/or utilizing real-time data.

The present disclosure relates to an organic electroluminescent device comprising an anode, a cathode, and an organic layer between the anode and the cathode, wherein the organic layer comprises one or more light-emitting layers; and at least one light-emitting layer comprises one or more dopant compounds and two or more host compounds. The organic electroluminescent device of the present disclosure has low driving voltage, high color purity, high luminous efficiency, and a long lifespan.

A composition, an interlayer manufactured therefrom, and an apparatus including the interlayer are provided. The composition includes a polymer compound represented by Formula 1, a non-arylamine-based compound represented by Formula 2, and a solvent: ##STR00001##
Z.sub.o.  <Formula 2> The substituents in Formulae 1 and 2 may be understood as described in connection with the detailed description.