Abstract: An ink composition including a mixed solvent including a first solvent and a second solvent, and a light emitting material, wherein the first solvent and the second solvent each have a vapor pressure of about 1×10?4 or greater and a boiling point of about 270° C. or less. The ink composition according to an embodiment may be applied to forming an emission layer of a light emitting diode to provide a light emitting diode having increased efficiency.

Abstract: An ink composition including a mixed solvent including a first solvent and a second solvent, and a light emitting material, wherein the first solvent and the second solvent each have a vapor pressure of about 1×10?4 or greater and a boiling point of about 270° C. or less. The ink composition according to an embodiment may be applied to forming an emission layer of a light emitting diode to provide a light emitting diode having increased efficiency.

Abstract: A display device includes a first electrode, a hole transport layer disposed on the first electrode, a light-emitting layer disposed on the hole transport layer, an electron transport layer disposed on the light-emitting layer, and a second electrode disposed on the electron transport layer, wherein the electron transport layer includes a metal oxide composition, the metal oxide composition includes a solvent and a metal oxide, the solvent includes a first compound represented by at least one of Chemical Formulas 1 to 3, and the metal oxide includes a second compound represented by Chemical Formula 4.

Abstract: Embodiments provide an ink composition, a light-emitting element produced from the ink composition, and a method for manufacturing the light-emitting element. The ink composition includes a metal oxide and an additive, wherein the ink composition has a viscosity in a range of about 7.5 cp to about 8.0 cp at a temperature of about 25° C. The additive is represented by Chemical Formula 1, which is explained in the specification.

Abstract: Embodiments provide a light emitting element that includes a first electrode, a second electrode disposed on the first electrode, an emission layer disposed between the first electrode and the second electrode and including quantum dots, a hole transport region disposed between the first electrode and the second electrode, and an electron transport region disposed between the first electrode and the second electrode, wherein the emission layer is disposed between the hole transport region and the electron transport region. At least one of the hole transport region and the electron transport region includes metal nanoparticles. The metal nanoparticles include a core containing a metal oxide, and a ligand bonded to the core, wherein the ligand includes an alkoxy group. The alkoxy group is derived from an oxygen-containing compound represented by Formula 1, which is explained in the specification.

Abstract: A quantum dot complex according to an embodiment comprises a quantum dot; and a ligand bound to a surface of the quantum dot, wherein the surface of the quantum dot is provided with a plurality of coupling parts to which the ligand is bound; wherein the plurality of coupling parts include a first coupling part and a second coupling part. The ligand includes a first ligand bound to the first coupling part and a second ligand bound to the second coupling part, wherein the second ligand includes a halogen element. The halogen element is contained in an amount of 1 at % to 12 at % to the total content of the quantum dot complex.

Abstract: An electronic transport composition including inorganic particles (each) represented by Formula 1, and a solvent represented by Formula 2, and when the electron transport composition is applied to a light-emitting element, luminous efficiency characteristics and element lifespan characteristics may be improved.

Abstract: A quantum dot complex includes a quantum dot, a first ligand bonded to a surface of the quantum dot and including a thiol group at an end of the first ligand, and a second ligand different from the first ligand, bonded to a surface of the quantum dot, and including a thiol group at an end of the second ligand and a carboxyl group at an opposite end of the second ligand.

Abstract: A light emitting device includes: a first electrode that is a reflective electrode; a first electron transport layer disposed on the first electrode; a second electron transport layer disposed on the first electron transport layer; an emission layer disposed on the second electron transport layer, and a second electrode positioned on the emission layer and that is a transflective electrode, wherein the first electron transport layer and the second electron transport layer include different metal oxides, and a thickness of the first electron transport layer is greater than a thickness of the second electron transport layer.

Abstract: An ink composition includes a first solvent, a second solvent, a first electron transport material and a second electron transport material. The first electron transport material includes a metal oxide, and a ligand disposed on a surface of the metal oxide. The second electron transport material includes a metal oxide, and a ligand positioned on a surface of the metal oxide. The ligand of the first electron transport material and the ligand of the second electron transport material are different from each other. A difference in a length of the ligand of the first electron transport material and a length of the ligand of the second electron transport material is three or more atoms.

Abstract: A light emitting element includes a first electrode, an electron transport region, an emission layer, a hole transport region, and a second electrode, stacked in order. At least one among the electron transport region and the hole transport region includes a metal nanoparticle. The metal nanoparticle includes a core including a metal oxide and a ligand bonded to the core and including at least one among Se and Te. The ligand is derived from a first compound represented by Formula 1 or an ion represented by Formula 2 as described. Accordingly, the light emitting element may be manufactured by an inkjet printing method.

Abstract: According to an embodiment, the inorganic metal oxide includes a crystalline core and a ligand positioned on a surface of the crystalline core, the crystalline core includes crystalline ZnO, and the ligand is a compound represented by Formula 1 below. In Chemical Formula 1, n may indicate 1 or 3, and X may indicate one selected from SH, an amine, methoxysilane, a carboxylic acid, and a carbonyl acid.

Abstract: An ink composition including a mixed solvent including a first solvent and a second solvent, and a light emitting material, wherein the first solvent and the second solvent each have a vapor pressure of about 1×10?4 or greater and a boiling point of about 270° C. or less. The ink composition according to an embodiment may be applied to forming an emission layer of a light emitting diode to provide a light emitting diode having increased efficiency.

Abstract: A data search method comprises a search condition input step inputting search condition through a user terminal connected to an electric communication network; and a batch processing search step for performing search in a batch processing, wherein the batch processing step includes: a transmission subroutine for transmitting the search condition to one or more database servers having search engines through the electric communication network, a first reception subroutine for receiving one or more search condition through the electric communication network, and a second reception subroutine for receiving data associated with the search results through the electric communication network.