Abstract: A quantum dot including a core and a shell disposed on the core wherein one of the core and the shell includes a first semiconductor nanocrystal including zinc and sulfur and the other of the core and the shell includes a second semiconductor nanocrystal having a different composition from the first semiconductor nanocrystal, the first semiconductor nanocrystal further includes a metal and a halogen configured to act as a Lewis acid in a halide form, an amount of the metal is greater than or equal to about 10 mole percent (mol %) based on a total number of moles of sulfur, and an amount of the halogen is greater than or equal to about 10 mol % based on a total number of moles of sulfur, a method of producing the same, and a composite and an electronic device including the same.

Abstract: Disclosed are a quantum dot and a quantum dot-polymer composite and a device including the same, wherein the quantum dot includes a semiconductor nanocrystal core including indium (In) and phosphorous (P), a first semiconductor nanocrystal shell disposed on the semiconductor nanocrystal core, the first semiconductor nanocrystal shell including zinc and selenium, and a second semiconductor nanocrystal shell disposed on the first semiconductor nanocrystal shell, the second semiconductor nanocrystal shell including zinc and sulfur, wherein the quantum dot does not include cadmium, wherein in the quantum dot, a mole ratio of sulfur with respect to selenium is less than or equal to about 2.5:1.

Abstract: A quantum dot including a core and a shell disposed on the core wherein one of the core and the shell includes a first semiconductor nanocrystal including zinc and sulfur and the other of the core and the shell includes a second semiconductor nanocrystal having a different composition from the first semiconductor nanocrystal, the first semiconductor nanocrystal further includes a metal and a halogen configured to act as a Lewis acid in a halide form, an amount of the metal is greater than or equal to about 10 mole percent (mol %) based on a total number of moles of sulfur, and an amount of the halogen is greater than or equal to about 10 mol % based on a total number of moles of sulfur, a method of producing the same, and a composite and an electronic device including the same.

Abstract: A cadmium-free quantum dot, a quantum dot-polymer composite including the cadmium-free quantum dot, a display device including the quantum dot-polymer composite, and an electroluminescent device including the cadmium-free quantum dot are disclosed, wherein the cadmium-free quantum dot includes a core including a first semiconductor nanocrystal including indium and phosphorus; a light emitting layer surrounding the core and including a second semiconductor nanocrystal including indium and phosphorus; a first shell disposed between the core and the light emitting layer and including a semiconductor nanocrystal including zinc, and selenium, sulfur, or a combination thereof; and a second shell disposed on the light emitting layer and including a semiconductor nanocrystal including zinc, and selenium, sulfur, or a combination thereof, and wherein the quantum is a single light emitting quantum dot having an emission peak wavelength in a range of about 500 nanometers (nm) to about 550 nm.

Abstract: Disclosed are a quantum dot and a quantum dot-polymer composite and a device including the same, wherein the quantum dot includes a semiconductor nanocrystal core including indium (In) and phosphorous (P), a first semiconductor nanocrystal shell disposed on the semiconductor nanocrystal core, the first semiconductor nanocrystal shell including zinc and selenium, and a second semiconductor nanocrystal shell disposed on the first semiconductor nanocrystal shell, the second semiconductor nanocrystal shell including zinc and sulfur, wherein the quantum dot does not include cadmium, wherein in the quantum dot, a mole ratio of sulfur with respect to selenium is less than or equal to about 2.5:1.

Abstract: A quantum dot including a core and a shell disposed on the core wherein one of the core and the shell includes a first semiconductor nanocrystal including zinc and sulfur and the other of the core and the shell includes a second semiconductor nanocrystal having a different composition from the first semiconductor nanocrystal, the first semiconductor nanocrystal further includes a metal and a halogen configured to act as a Lewis acid in a halide form, an amount of the metal is greater than or equal to about 10 mole percent (mol %) based on a total number of moles of sulfur, and an amount of the halogen is greater than or equal to about 10 mol % based on a total number of moles of sulfur, a method of producing the same, and a composite and an electronic device including the same.

Abstract: A quantum dot, a production method thereof, and a quantum dot composite and a device including the same are disclosed, wherein the quantum dot includes an alloy semiconductor nanocrystal including indium (In), gallium, zinc (Zn), phosphorus (P), and sulfur (S), and in the quantum dot, a mole ratio of gallium with respect to indium (Ga:In) is greater than or equal to about 0.2:1, a mole ratio of phosphorus with respect to indium (P:In) is greater than or equal to about 0.95:1, the quantum dot does not include cadmium, and in an UV-Vis absorption spectrum of the quantum dot(s), a first absorption peak is present in a range of less than or equal to about 520 nm.

Abstract: A quantum dot, and a quantum dot composite and a device including the same, wherein the quantum dot includes a seed including a first semiconductor nanocrystal, a quantum well layer disposed on the seed and a shell disposed on the quantum well layer, the shell including a second semiconductor nanocrystal, and wherein the quantum dot does not include cadmium, wherein the first semiconductor nanocrystal includes a first zinc chalcogenide, wherein the second semiconductor nanocrystal includes a second zinc chalcogenide, and the quantum well layer includes an alloy semiconductor nanocrystal including indium (In), phosphorus (P), and gallium (Ga), and wherein a bandgap energy of the alloy semiconductor nanocrystal is less than a bandgap energy of the first semiconductor nanocrystal and less than a bandgap energy of the second semiconductor nanocrystal.

Abstract: A color conversion panel that includes a color conversion layer including one or more color conversion regions, and optionally, a partition wall defining the regions of the color conversion layer, and a display device including the same. The color conversion region includes a first region corresponding to a first pixel, and the first region includes a first composite including a matrix and a plurality of luminescent nanostructures dispersed in the matrix. The luminescent nanostructures include a first semiconductor nanocrystal including a Group III-V compound and a second semiconductor nanocrystal including a zinc chalcogenide. The Group III-V compound includes indium, phosphorus, and optionally, zinc or gallium, or zinc and gallium, and the zinc chalcogenide includes zinc, selenium, and sulfur. The luminescent nanostructures do not include cadmium.

Abstract: A color conversion panel includes a color conversion layer including a color conversion region, and optionally, a partition wall defining the region of the color conversion layer. The color conversion region includes a first region corresponding to a green pixel, and the first region includes a first composite that is configured to emit a green light and includes a matrix and a plurality of luminescent nanostructures dispersed in the matrix. The luminescent nanostructures include a first semiconductor nanocrystal including a Group III-V compound and a second semiconductor nanocrystal including a zinc chalcogenide, the Group III-V compound includes indium, phosphorus, and optionally zinc, and the zinc chalcogenide includes zinc, selenium, and sulfur. The luminescent nanostructures do not include cadmium. and at least a portion of surfaces of the luminescent nanostructures includes the second semiconductor nanocrystal.

Abstract: A light emitting device including a semiconductor nanocrystal and a ligand bound to a surface of the semiconductor nanocrystal, wherein the ligand includes an organic thiol ligand or a salt thereof and a polyvalent metal compound including a metal including Zn, In, Ga, Mg, Ca, Sc, Sn, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Sr, Y, Zr, Nb, Mo, Cd, Ba, Au, Hg, Tl, or a combination thereof, and a display device including the light emitting device.

Abstract: A photosensitive resin composition includes (A) a photo-conversion material; (B) a metal-containing compound; (C) a photopolymerizable monomer; (D) a photopolymerization initiator; and (E) a solvent, wherein the metal-containing compound includes a *—S-M-S—* (M is Zn, Al, Mg, Ca, Sc, Ti, 5 V, Cr, Mn, Fe, Co, Ni, Cu, Ga, Sr, Y, Zr, Nb, Mo, Cd, In, Ba, Au, Hg, or Tl) structure, a complex including a polymer matrix in which a photo-conversion material is dispersed, wherein the polymer matrix includes a *—S-M-S—* (M is Zn, Al, Mg, Ca, Sc, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Ga, Sr, Y, Zr, Nb, Mo, Cd, In, Ba, Au, Hg, or Tl) structure and an ester linking group, a laminated structure including the complex, and a display device and an electronic device including the laminated structure.

Abstract: A quantum dot includes a core including a first semiconductor nanocrystal and a multi-layered shell disposed on the core and including at least two layers, a production method thereof, and an electronic device including the same. The quantum dot does not include cadmium; the first semiconductor nanocrystal includes a Group III-V compound, the multi-layered shell includes a first layer surrounding at least a portion of a surface of the core, the first layer including a second semiconductor nanocrystal, the second semiconductor nanocrystal including a Group II-V compound, and a second layer disposed on the first layer, the second layer including a third semiconductor nanocrystal, the third semiconductor nanocrystal comprising a composition different from that of the second semiconductor nanocrystal.

Abstract: A quantum dot including a nanoparticle template including a first semiconductor nanocrystal including a Group II-VI compound, a quantum well including a second semiconductor nanocrystal disposed on the nanoparticle template, the second semiconductor nanocrystal including a Group IIIA metal excluding aluminum and a Group V element; and a shell comprising a third semiconductor nanocrystal disposed on the quantum well, the third semiconductor nanocrystal including a Group II-VI compound, wherein the quantum dot does not include cadmium, a band gap energy of the second semiconductor nanocrystal is less than a band gap energy of the first semiconductor nanocrystal, the band gap energy of the second semiconductor nanocrystal is less than a band gap energy of the third semiconductor nanocrystal, and the quantum dot includes an additional metal including an alkali metal, an alkaline earth metal, aluminum, iron, cobalt, nickel, copper, zinc, or a combination thereof.

Abstract: Disclosed are a quantum dot and a quantum dot-polymer composite and a device including the same, wherein the quantum dot includes a semiconductor nanocrystal core including indium (In) and phosphorous (P), a first semiconductor nanocrystal shell disposed on the semiconductor nanocrystal core, the first semiconductor nanocrystal shell including zinc and selenium, and a second semiconductor nanocrystal shell disposed on the first semiconductor nanocrystal shell, the second semiconductor nanocrystal shell including zinc and sulfur, wherein the quantum dot does not include cadmium, wherein in the quantum dot, a mole ratio of sulfur with respect to selenium is less than or equal to about 2.5:1.

Abstract: Disclosed are a quantum dot and a quantum dot-polymer composite and a device including the same, wherein the quantum dot includes a semiconductor nanocrystal core including indium (In) and phosphorous (P), a first semiconductor nanocrystal shell disposed on the semiconductor nanocrystal core, the first semiconductor nanocrystal shell including zinc and selenium, and a second semiconductor nanocrystal shell disposed on the first semiconductor nanocrystal shell, the second semiconductor nanocrystal shell including zinc and sulfur, wherein the quantum dot does not include cadmium, wherein in the quantum dot, a mole ratio of sulfur with respect to selenium is less than or equal to about 2.5:1.

Abstract: Disclosed are a quantum dot population including a plurality of cadmium free quantum dots, a quantum dot polymer composite including the same, and a display device including the same. The plurality of cadmium free quantum dots includes: 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, wherein an average particle size of the plurality of cadmium free quantum dots is greater than or equal to about 5.5 nm, a standard deviation of particle sizes of the plurality of cadmium free quantum dots is less than or equal to about 20% of the average particle size, and an average solidity of the plurality of cadmium free quantum dots is greater than or equal to about 0.85.

Abstract: A quantum dot including a first ligand and a second ligand on a surface of the quantum dot, a composition or composite including the same, and a device including the same. The first ligand includes a compound represented by Chemical Formula 1 and the second ligand includes a compound represented by Chemical Formula 2: MAn??Chemical Formula 1 wherein M, n, and A are the same as defined in the specification; and wherein, R1, L1, Y1, R, k1, and k2 are the same as defined in the specification.

Abstract: A cadmium-free quantum dot, a quantum dot-polymer composite including the cadmium-free quantum dot, a display device including the quantum dot-polymer composite, and an electroluminescent device including the cadmium-free quantum dot are disclosed, wherein the cadmium-free quantum dot includes a core including a first semiconductor nanocrystal including indium and phosphorus; a light emitting layer surrounding the core and including a second semiconductor nanocrystal including indium and phosphorus; a first shell disposed between the core and the light emitting layer and including a semiconductor nanocrystal including zinc, and selenium, sulfur, or a combination thereof; and a second shell disposed on the light emitting layer and including a semiconductor nanocrystal including zinc, and selenium, sulfur, or a combination thereof, and wherein the quantum is a single light emitting quantum dot having an emission peak wavelength in a range of about 500 nanometers (nm) to about 550 nm.

Abstract: A layered structure including a photoluminescent layer including a quantum dot polymer composite; a light absorption layer disposed on the photoluminescent layer, the light absorption layer including an absorptive color-filter material; and a silicon containing layer disposed between the photoluminescent layer and the light absorption layer, wherein the quantum dot polymer composite includes a first polymer matrix and a plurality of quantum dots dispersed in the first polymer matrix, and the plurality of quantum dots absorb excitation light and emits light in a longer wavelength than the wavelength of the excited light; and the absorptive color-filter material is dispersed in a second polymer matrix, and the absorptive color-filter material absorbs the excitation light that passes through the photoluminescent layer and transmits the light emitted from the plurality of quantum dots and an electronic device including the same.