Abstract: As a technology capable of improving the durability of an electroluminescent device, for example, luminescence lifespan, a polymeric compound including a structural unit represented by Chemical Formula 1, or a structural unit represented by Chemical Formula 1 and a structural unit represented by Chemical Formula 2, and an electroluminescent device material or electroluminescent device including the same are provided: In Chemical Formula 1 and Chemical Formula 2, R11 to R14 are not the same as R41 to R44.

Abstract: An electroluminescent device that includes a first electrode and a second electrode spaced apart from each other, a light emitting layer disposed between the first electrode and the second electrode, an electron transport layer disposed between the light emitting layer and the second electrode, and an organic layer disposed on the electron transport layer. The light emitting layer includes a plurality of semiconductor nanoparticles, the electron transport layer includes a plurality of metal oxide nanoparticles, and the organic layer includes a polymeric acid compound.

Abstract: Provided is a compound represented by Chemical Formula 1 capable of manufacturing an EL device by inkjet printing. In Chemical Formula 1, n is an integer of greater than or equal to 3 and less than or equal to 10, X is a group represented by Chemical Formula 2 and a plurality of X's may be the same or different from each other, and Y is a group represented by Chemical Formula 3 and a plurality of Y's may be the same or different from each other.

Abstract: Disclosed is a copolymer including a structural unit represented by Chemical Formula 1 capable of improving performance (particularly durability) of an electroluminescent device.

Abstract: A copolymer including a structural unit represented by Chemical Formula 1 wherein the copolymer is capable of improving luminous efficiency and durability, particularly, an improvement in luminescence life-span, of an electroluminescence device, particularly a quantum dot electroluminescence device.

Abstract: A polymer compound including a structural unit (A) represented by Chemical Formula 1 as described. In Chemical Formula 1, Ar1, Ar2, Ar11, Ar12, X1, Y1, and L1 are each independently as described in the specification. An electroluminescence device including a first electrode, a second electrode, and at least one layer of an organic film between the first electrode and the second electrode, the at least one layer of an organic film comprises the polymeric compound.

Abstract: Disclosed is a copolymer including a structural unit represented by Chemical Formula 1 capable of improving performance (particularly durability) of an electroluminescent device.

Abstract: An electroluminescent device, a producing method thereof, and a display device including the same. The electroluminescent device includes a first electrode and a second electrode spaced apart from each other; a light-emitting layer disposed between the first and second electrodes; and an electron transport layer between the light-emitting layer and the second electrode. The light-emitting layer includes a semiconductor nanoparticle, the electron transport layer includes a zinc oxide nanoparticle having a size of 1 nm or more to 15 nm or less, and the zinc oxide nanoparticle further includes magnesium, an alkali metal, and sulfur.

Abstract: A method of manufacturing an quantum dot light emitting device, a quantum dot light emitting device, and an electronic device, the method including: forming an anode, forming a quantum dot light emitting layer on the anode, forming an electron auxiliary layer including alkaline-earth metal containing oxide nanoparticles on the quantum dot emitting layer, and forming a cathode on the electron auxiliary layer, wherein the forming of the electron auxiliary layer includes: preparing a precursor dispersion including an alkaline-earth metal precursor, preparing a basic reducing agent solution containing a basic reducing agent, and adding the basic reducing agent solution into the precursor dispersion dropwise at a controlled rate to grow alkaline-earth metal containing oxide nanoparticles, dispersing the alkaline-earth metal containing oxide nanoparticles in a dispersion medium to prepare an alkaline-earth metal containing oxide nanoparticle dispersion, and coating the alkaline-earth metal containing oxide nanopart

Abstract: A zinc-containing oxide nanoparticle including zinc, an additional metal other than zinc, and an oxo anion of vanadium (V) on a surface of the nanoparticle, a method of preparing the zinc-containing oxide nanoparticle, an electroluminescent diode including the zinc-containing oxide nanoparticle, and a display device including the electroluminescent diode.

Abstract: An electroluminescent device and a production method for the electroluminescent device. The electroluminescent device includes: a first electrode and a second electrode spaced apart from each other, a light emitting layer disposed between the first electrode and the second electrode, an electron transport layer disposed between the light emitting layer and the second electrode, and an organic layer. The light emitting layer includes a semiconductor nanoparticle, and the electron transport layer includes a metal oxide nanoparticle. The organic layer includes a polymer material as described herein in the organic layer.

Abstract: An electroluminescent device and a method for making the device. The electroluminescent device includes a first electrode, a second electrode, a light emitting layer disposed between the first electrode and the second electrode, an electron transport layer disposed between the light emitting layer and the second electrode, and an organic layer. The light emitting layer includes a semiconductor nanoparticle, the electron transport layer includes a metal oxide nanoparticle, and the metal oxide nanoparticles have sizes of 1 nm or more and 50 nm or less. The organic layer includes a polymer, and the polymer includes a repeat unit with a hydroxy group.

Abstract: A method of producing a light emitting device includes: forming a light emitting layer including a semiconductor nanoparticle on a first electrode; forming an electron transport layer including a metal oxide nanoparticle on the light emitting layer; forming a thin film conductor on the electron transport layer; placing the electron transport layer, the thin film conductor, and an acid material together in a space defined by a container; and keeping the defined space at a post-treatment temperature of greater than or equal to about 40° C. and less than or equal to about 200° C. The light emitting layer is configured to emit a first light when a voltage is applied, a thickness of the thin film conductor is greater than or equal to about 1 nm and less than 100 nm, and the acid material includes a polymeric acid, a non-polymeric carboxylic acid compound, or a combination thereof.

Abstract: A copolymer, including a structural unit represented by Chemical Formula 1, a structural unit represented by Chemical Formula 2, or a combination thereof: wherein R1, R2, R3, X1, X2, and Ar1 are as provided herein.

Abstract: A copolymer including a structural unit represented by Chemical Formula 1 wherein the copolymer is capable of improving luminous efficiency and durability, particularly, an improvement in luminescence life-span, of an electroluminescence device, particularly a quantum dot electroluminescence device.

Abstract: A polymer compound for use in an electroluminescent device may improve the durability (particularly the luminescence lifespan). The polymer compound includes Structural Unit (A) represented by Chemical Formula (1). In Chemical Formula (1), the definition of each substituent is as described in the detailed description.

Abstract: A copolymer including a structural unit represented by Chemical Formula 1 wherein the copolymer is capable of improving luminous efficiency and durability, particularly, an improvement in luminescence life-span, of an electroluminescence device, particularly a quantum dot electroluminescence device.

Abstract: An electroluminescent device that includes a first electrode and a second electrode spaced apart from each other, a light emitting layer disposed between the first electrode and the second electrode, an electron transport layer disposed between the light emitting layer and the second electrode, and an organic layer disposed on the electron transport layer. The light emitting layer includes a plurality of semiconductor nanoparticles, the electron transport layer includes a plurality of metal oxide nanoparticles, and the organic layer includes a polymeric acid compound.

Abstract: A polymer including a structural unit represented by Chemical Formula 1, an electroluminescence device material including the polymer, an electroluminescence device including the polymer or the electroluminescence device material, and an electronic device including the electroluminescence device are provided: In Chemical Formula 1, the definition of each substituent is the same as described in the specification.

Abstract: As a technology capable of improving the durability of an electroluminescent device, for example, luminescence lifespan, a polymeric compound including a structural unit represented by Chemical Formula 1, or a structural unit represented by Chemical Formula 1 and a structural unit represented by Chemical Formula 2, and an electroluminescent device material or electroluminescent device including the same are provided: In Chemical Formula 1 and Chemical Formula 2, R11 to R14 are not the same as R41 to R44.