An object of the present invention is to provide a semiconductor nanoparticle having high emission efficiency and excellent durability; a method of producing the same; and a dispersion liquid and a film obtained by using a semiconductor nanoparticle. The semiconductor nanoparticle of the present invention is a semiconductor nanoparticle in which oxygen, zinc, and sulfur are detected by X-ray photoelectron spectroscopy analysis and a peak (I.sub.CH3) which is derived from a hydrocarbon group and present in a range of 2800 cm.sup.1 to 3000 cm.sup.1 and a peak (I.sub.COO) which is derived from COO.sup. and present in a range of 1400 cm.sup.1 to 1600 cm.sup.1 are detected by Fourier transform infrared spectroscopy analysis.

Embodiments of a display device including barrier layer coated quantum dots and a method of making the barrier layer coated quantum dots are described. Each of the barrier layer coated quantum dots includes a core-shell structure and a hydrophobic barrier layer disposed on the core-shell structure. The hydrophobic barrier layer is configured to provide a distance between the core-shell structure of one of the quantum dots with the core-shell structures of other quantum dots that are in substantial contact with the one of the quantum dots. The method for making the barrier layer coated quantum dots includes forming reverse micro-micelles using surfactants and incorporating quantum dots into the reverse micro-micelles. The method further includes individually coating the incorporated quantum dots with a barrier layer and isolating the barrier layer coated quantum dots with the surfactants of the reverse micro-micelles disposed on the barrier layer.

A pre-polymer formulation comprising quantum dots and a precursor for a polymer having a free volume parameter V.sub.FH2/ with a value less than or equal to 0.03 cm.sup.3/g is disclosed. A pre-polymer formulation comprising quantum dots and a cyclohexylacrylate monomer is further disclosed. Also disclosed are a quantum dot composition including quantum dots dispersed in a polymer matrix, the quantum dot composition being prepared from a pre-polymer formulation comprising quantum dots and a precursor for a polymer having a free volume parameter V.sub.FH2/ with a value less than or equal to cm.sup.3/g; a method; and other products including a quantum dot composition described herein.

The invention provides a method for the production of a luminescent material, (10) based on coated quantum dots (100), comprising: (i) providing luminescent quantum dots (100) in a liquid medium (20) wherein the luminescent quantum dots (100) have an outer layer (105) comprising first cations and first anions; and (ii) providing in a coating process a coating (120) on the outer layer (105) of the quantum dots (100) in the liquid medium (20), wherein the coating (120) comprises a silica coating; wherein during the coating process, or after the coating process, or during and after the coating process, the liquid medium (20) comprises one or more of a third element and a fourth element, wherein the first cation and the third element belong to the same group of the periodic system, and wherein the first anion and the fourth element belong to the same group of the periodic system.

There is provided a semiconductor nanocrystal or quantum dot comprising a core made of a material and at least one shell made of another material. Also there is provided a composite comprising a plurality of such nanocrystals or quantum dots. Moreover, there is provided a method of measuring the temperature of an object or area, comprising using a temperature sensor comprising a semiconductor nanocrystal or quantum dot of the invention.

A process for producing a light emitting diode device, the process including: forming a plurality of quantum dots on a surface of a layer including a first area and a second area, the forming including: exposing the first area of the surface to light having a first wavelength while exposing the first area to a quantum dot forming environment that causes the quantum dots in the first area to form at a first growth rate while the quantum dots have a dimension less than a first threshold dimension; exposing the second area of the surface to light having a second wavelength while exposing the second area to the quantum dot forming environment that causes the quantum dots in the second area to form at a third growth rate while the quantum dots have a dimension less than a second threshold dimension; and processing the layer to form the LED device.

Disclosed herein are embodiments of a coated type-I quantum dot comprising a core and a shell, and a silica layer, and a method for making the quantum dot. The quantum dot may be a thick-shelled quantum dot. Also disclosed are embodiments of a composition comprising one or more coated quantum dots and a polymer. The composition may be a luminescent solar concentrator. Device comprising the composition are disclosed. The device may comprise the composition, such as a luminescent solar concentrator, applied to a substrate, such as glass. The device may be a window or a solar module. Also disclosed is a method of applying the composition to the substrate to form a thin film luminescent solar concentrator.

The invention is in the field of nanostructure synthesis. The invention relates to methods for producing nanostructures, particularly Group III-V and Group II-VI semiconductor nanostructures. The invention also relates to high temperature methods of synthesizing nanostructures comprising simultaneous injection of cores and shell precursors.

Illumination devices based on quantum dot technology and methods of making such devices are described. An illumination device includes a substrate having a plurality of microLEDs, a beam splitter, and a film having a plurality of quantum dots. The beam splitter includes a plurality of layers and is disposed between the substrate and the film having the plurality of quantum dots.

One or more aqueous, near infrared emitting, high yield, highly photoluminescent, stable quantum dots conjugated to one or more biomarkers specific moieties. The conjugated quantum dots have an enhanced detection sensitivity and selectivity and may be formed using a novel and efficient method for conjugating one or more biomarker specific moieties to the quantum dots. The invention is further directed to a method for using the conjugated quantum dots for cancer detection in the margin of excised tissue.