Abstract: A method of manufacturing a quantum dot includes forming a core including silver (Ag) and indium (In), purifying the core with a surface treatment solution including gallium (Ga) and forming a shell around (e.g., surrounding) the core by reacting a first precursor including gallium (Ga) with the core.

Abstract: Embodiments provide a light-emitting element that includes a first electrode, a light-emitting layer disposed on the first electrode, the light-emitting layer including a quantum dot, a second electrode disposed on the light-emitting layer, 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, the electron transport region including a metal nanoparticle. The light-emitting layer is disposed between the hole transport region and the electron transport region. The metal nanoparticle includes a core including a metal oxide, and a ligand bonded to the core. The ligand may include bisulfite derived from an ionic compound represented by Formula A-1, which is explained in the specification.

Abstract: A semiconductor nanoparticle for a color conversion member of a display device includes: a central portion including at least one of i) InP, ii) a ternary compound consisting of indium, phosphorus, and one element of Groups I-VII, and iii) InP doped with at least one transition metal of Groups I-VII; an inner portion proximate to the central portion and including a phosphide of at least one of boron, aluminum, and gallium; a middle portion proximate to the inner portion and including at least one of ZnSe and ZnSexS1-x; and an outer portion proximate to the middle portion and including one or more compounds of Groups II-VI, wherein x is 0<x<1.

Abstract: Embodiments provide a light emitting element that includes a first electrode, a second electrode disposed on the first electrode, a light emitting layer disposed between the first electrode and the second electrode and including a quantum dot, a hole transport region disposed between the first electrode and the light emitting layer, and an electron transport layer disposed between the light emitting layer and the second electrode, wherein the electron transport layer includes an electron transport material, and the electron transport material includes a metal oxide particle, and a bicarbonate coupled to a surface of the metal oxide particle.

Abstract: Provided are a quantum dot, a method of preparing the quantum dot, an optical member including the quantum dot, and an electronic device including the quantum dot. The quantum dot includes a core including indium (In), A1, and A2; and a shell covering the core. A1 is a Group V element, A2 is a Group III element other than indium, and the core includes a first region, and a second region covering the first region. The first region does not include A2, and includes indium and A1, and the second region includes indium, A1, and A2, and indium and A2 are alloyed with each other in the second region.

Abstract: A semiconductor nanoparticle for a color conversion member of a display device includes: a central portion including at least one of i) InP, ii) a ternary compound consisting of indium, phosphorus, and one element of Groups I-VII, and iii) InP doped with at least one transition metal of Groups I-VII; an inner portion proximate to the central portion and including a phosphide of at least one of boron, aluminum, and gallium; a middle portion proximate to the inner portion and including at least one of ZnSe and ZnSexS1-x; and an outer portion proximate to the middle portion and including one or more compounds of Groups II-VI, wherein x is 0<x<1.

Abstract: Provided are a quantum dot, a method of preparing the quantum dot, an optical member including the quantum dot, and an electronic device including the quantum dot. The quantum dot includes a core including indium (In), A1, and A2; and a shell covering the core. A1 is a Group V element, A2 is a Group III element other than indium, and the core includes a first region, and a second region covering the first region. The first region does not include A2, and includes indium and A1, and the second region includes indium, A1, and A2, and indium and A2 are alloyed with each other in the second region.

Abstract: The present invention relates to fluorescent, radio-opaque and magnetic quantum nanoparticles, useful as multifunctional contrast agents or probes for in vivo bioimaging, and methods of their use. The invention provides for multifaceted bioimaging (e.g., intra-arterial pre-operative brain mapping and broad based in vivo diagnostic imaging), including imaging of various cell types, such as stem cells.

Abstract: A partially passivating core shell particle includes a luminescent nanocrystal core, and a partially passivating semiconducting core shell on a surface of the nanocrystal. The shell allows selected analytes to alter a luminescent response of the core shell particle. A quantum dot-based sensing system includes at least one partially passivating core shell particle, a light source for irradiating the partially passivating core shell particle, and a light detector for receiving emissions from the particle, wherein emissions from the core shell particle change in response to the presence of at least one analyte.

Abstract: The present invention relates to fluorescent, radio-opaque and magnetic quantum nanoparticles, useful as multifunctional contrast agents or probes for in vivo bioimaging, and methods of their use. The invention provides for multifaceted bioimaging (e.g., intra-arterial pre-operative brain mapping and broad based in vivo diagnostic imaging), including imaging of various cell types, such as stem cells.

Abstract: A partially passivating core shell particle includes a luminescent nanocrystal core, and a partially passivating semiconducting core shell on a surface of the nanocrystal. The shell allows selected analytes to alter a luminescent response of the core shell particle. A quantum dot-based sensing system includes at least one partially passivating core shell particle, a light source for irradiating the partially passivating core shell particle, and a light detector for receiving emissions from the particle, wherein emissions from the core shell particle change in response to the presence of at least one analyte.