Abstract: A photosensitive composition including a quantum dot dispersion, a reactive compound having at least two thiol groups, a photopolymerizable monomer having a carbon-carbon double bond, and a photoinitiator, wherein the quantum dot dispersion includes a carboxylic acid group-containing polymer and a quantum dot dispersed in the carboxylic acid group containing polymer, and wherein the carboxylic acid group-containing polymer includes a copolymer of a monomer combination including a first monomer having a carboxylic acid group and a carbon-carbon double bond and a second monomer having a carbon-carbon double bond and a hydrophobic moiety and not having a carboxylic acid group.

Abstract: A semiconductor nanocrystal including an anion of an inorganic metal salt and a first organic ligand bound to a surface of the semiconductor nanocrystal, wherein the first organic ligand includes a substituted or unsubstituted C6 to C30 aromatic ring group and a carboxylate, a substituted or unsubstituted C3 to C30 aromatic hetero cyclic group and a carboxylate, or a combination thereof.

Abstract: A light emitting device includes: a first electrode and a second electrode facing each other, an emissive layer disposed between the first electrode and the second electrode and including a quantum dot, an electron auxiliary layer disposed between the emissive layer and the second electrode and including a plurality of nanoparticles, and a polymer layer between a portion of the second electrode and the electron auxiliary layer, wherein the nanoparticles include a metal oxide including zinc, wherein the second electrode has a first surface facing a surface of the electron auxiliary layer and a second surface opposite to the first surface, and the polymer layer is disposed on a portion of the second surface and a portion of the surface of the electron auxiliary layer, and wherein the polymer layer includes a polymerization product of a thiol compound and an unsaturated compound having at least two carbon-carbon unsaturated bonds.

Abstract: A composition including a plurality of quantum dots; a binder polymer; a thiol compound having at least two thiol groups; a polyvalent metal compound; a polymerizable monomer having a carbon-carbon double bond; a photoinitiator; and a solvent.

Abstract: An electroluminescent device includes a first electrode and a second electrode facing each other; an emission layer disposed between the first electrode and the second electrode and including a plurality of quantum dots and a first hole transporting material having a substituted or unsubstituted C4 to C20 alkyl group attached to a backbone structure; a hole transport layer disposed between the emission layer and the first electrode and including a second hole transporting material; and an electron transport layer disposed between the emission layer and the second electrode.

Abstract: A quantum dot including a core that includes a first semiconductor nanocrystal including zinc and selenium, and optionally sulfur and/or tellurium, and a shell that includes a second semiconductor nanocrystal including zinc, and at least one of sulfur or selenium is disclosed. The quantum dot has an average particle diameter of greater than or equal to about 13 nm, an emission peak wavelength in a range of about 440 nm to about 470 nm, and a full width at half maximum (FWHM) of an emission wavelength of less than about 25 nm. A method for preparing the quantum dot, a quantum dot-polymer composite including the quantum dot, and an electronic device including the quantum dot is also disclosed.

Abstract: A quantum dot light-emitting device including first electrode and a second electrode, a quantum dot layer between the first electrode and the second electrode, a first electron transport layer and a second electron layer disposed between the quantum dot layer and the second electrode. The second electron transport layer is disposed between the quantum dot layer and the first electron transport layer, wherein each of the first electron transport layer and the second electron transport layer includes an inorganic material. A lowest unoccupied molecular orbital energy level of the second electron transport layer is shallower than a lowest unoccupied molecular orbital energy level of the first electron transport layer, and a lowest unoccupied molecular orbital energy level of the quantum dot layer is shallower than a lowest unoccupied molecular orbital energy level of the second electron transport layer. An electronic device including the quantum dot light-emitting device.

Abstract: A light emitting device includes: a first electrode and a second electrode facing each other, an emissive layer disposed between the first electrode and the second electrode and including a quantum dot, an electron auxiliary layer disposed between the emissive layer and the second electrode and including a plurality of nanoparticles, and a polymer layer between a portion of the second electrode and the electron auxiliary layer, wherein the nanoparticles include a metal oxide including zinc, wherein the second electrode has a first surface facing a surface of the electron auxiliary layer and a second surface opposite to the first surface, and the polymer layer is disposed on a portion of the second surface and a portion of the surface of the electron auxiliary layer, and wherein the polymer layer includes a polymerization product of a thiol compound and an unsaturated compound having at least two carbon-carbon unsaturated bonds.

Abstract: An arylamine-fluorene alternating copolymer having a structural unit (A) is represented by Chemical Formula (1): wherein Chemical Formula (1) is the same as described in the detailed description.

Abstract: A light-emitting device including a first electrode, a second electrode, and a light-emitting film disposed between the first electrode and the second electrode, and a method of producing the device. The light-emitting film includes a fluorine-containing organic salt, and quantum dots that do not include cadmium, lead, or a combination thereof, and the fluorine-containing organic salt includes a substituted or unsubstituted C1 to C30 hydrocarbon group, a non-metallic element, fluorine, and at least one of boron or phosphorus, and the non-metallic element includes carbon, nitrogen, oxygen, phosphorus, sulfur, or selenium.

Abstract: Light emitting device, method of manufacturing the light emitting device, and display device including the light emitting device are disclosed. The light emitting device includes a first electrode and a second electrode each having a surface opposite the other, a light emitting layer including quantum dots that is disposed between the first electrode and the second electrode, and an electron auxiliary layer disposed between the light emitting layer and the second electrode, wherein the electron auxiliary layer includes metal oxide nanoparticles including an anion of an organic acid bound to a surface of the metal oxide nanoparticle.

Abstract: A copolymer having a structural unit represented by Chemical Formula 1 is provided. The copolymer may improve performance, e.g., luminous efficiency, of an electroluminescence device. In Chemical Formula 1, the definition of each substituent is as described in the detailed description.

Abstract: A light emitting device including a first electrode, a second electrode, a quantum dot layer disposed between the first electrode and the second electrode and a first auxiliary layer disposed between the quantum dot layer and the first electrode, wherein the first auxiliary layer includes nickel oxide nanoparticles having an average particle diameter of less than or equal to about nanometers (nm) and an organic ligand, a method of manufacturing the light emitting device, and a display device including the same.

Abstract: A production method of a quantum dot comprising a Group IIIA-VA compound, the quantum dot as prepared, and an electronic device including the same, and the production method includes: supplying a Group VA element precursor including a halide of a Group VA element and a first ligand of a phosphine compound or a first amine compound; and performing a reaction between the Group VA element precursor and a Group IIIA metal precursor in the presence of a reducing agent in an organic reaction medium including a second amine compound.

Abstract: A semiconductor nanocrystal and a preparation method thereof, where the semiconductor nanocrystal include a bare semiconductor nanocrystal and a water molecule directly bound to the bare semiconductor nanocrystal.

Abstract: A semiconductor nanocrystal including an anion of an inorganic metal salt and a first organic ligand bound to a surface of the semiconductor nanocrystal, wherein the first organic ligand includes a substituted or unsubstituted C6 to C30 aromatic ring group and a carboxylate, a substituted or unsubstituted C3 to C30 aromatic hetero cyclic group and a carboxylate, or a combination thereof.

Abstract: An electroluminescent device and a display device including the electroluminescent device. The electroluminescent device includes a first electrode and a second electrode each having a surface opposite the other; a light emitting layer disposed between the first electrode and the second electrode, the light emitting layer including quantum dots; and an electron transport layer disposed between the light emitting layer and the second electrode, the electron transport layer including inorganic material nanoparticles including an anion dopant including P, N, C, Cl, F, Br, S, or a combination thereof.

Abstract: A cadmium free quantum dot not including cadmium and including: a semiconductor nanocrystal core comprising indium and phosphorous, a first semiconductor nanocrystal shell disposed on the semiconductor nanocrystal core and comprising zinc and selenium, and a second semiconductor nanocrystal shell disposed on the first semiconductor nanocrystal shell and comprising zinc and sulfur, a composition and composite including the same, and an electronic device.

Abstract: A semiconductor nanocrystal particle including zinc (Zn), tellurium (Te) and selenium (Se), a method of producing the same, and an electronic device including the same are disclosed. In the semiconductor nanocrystal particle, an amount of the tellurium is less than an amount of the selenium, the particle includes a core including a first semiconductor material including zinc, tellurium, and selenium and a shell disposed on at least a portion of the core and including a second semiconductor material having a different composition from the first semiconductor material, and the semiconductor nanocrystal particle emits blue light including a maximum peak emission at a wavelength of less than or equal to about 470 nanometers.

Abstract: A method of producing a quantum dot comprising zinc selenide, the method comprising: providing an organic ligand mixture comprising a carboxylic acid compound, a primary amine compound, a secondary amide compound represented by Chemical Formula 1, and a first organic solvent: RCONHR??Chemical Formula 1 wherein each R is as defined herein; heating the organic ligand mixture in an inert atmosphere at a first temperature to obtain a heated organic ligand mixture; adding a zinc precursor, a selenium precursor, and optionally a tellurium precursor to the heated organic ligand mixture to obtain a reaction mixture, wherein the zinc precursor does not comprise oxygen; and heating the reaction mixture at a first reaction temperature to synthesize a first semiconductor nanocrystal particle.