The present invention provides nanostructure compositions and methods of producing nanostructure compositions. The nanostructure compositions comprise a population of nanostructures comprising donor-acceptor ligands. The present invention also provides nanostructure films comprising the nanostructure compositions and methods of making nanostructure films using the nanostructure compositions.

To provide a semiconductor light emitting device which is capable of accomplishing a broad color reproducibility for an entire image without losing brightness of the entire image. A light source provided on a backlight for a color image display device has a semiconductor light emitting device comprising a solid light emitting device to emit light in a blue or deep blue region or in an ultraviolet region and phosphors, in combination. The phosphors comprise a green emitting phosphor and a red emitting phosphor. The green emitting phosphor and the red emitting phosphor are ones, of which the rate of change of the emission peak intensity at 100° C. to the emission intensity at 25° C., when the wavelength of the excitation light is 400 nm or 455 nm, is at most 40%.

Systems and methods to provide multiple channels of light to form a blended white light output, the systems and methods utilizing recipient luminophoric mediums to alter light provided by light emitting diodes. The predetermined blends of luminescent materials within the luminophoric mediums provide predetermined spectral power distributions in the white light output.

A quantum dot including a core including a semiconductor nanocrystal including a Group III-V compound; and a first semiconductor nanocrystal shell disposed on the semiconductor nanocrystal core, the first semiconductor nanocrystal shell including zinc, selenium, and optionally sulfur, and a second semiconductor nanocrystal shell disposed on the first semiconductor nanocrystal shell, the second semiconductor nanocrystal shell including zinc, sulfur, and optionally selenium, wherein the quantum dot does not include cadmium, an emission peak wavelength of the quantum dot is in a range of about 500 nanometers (nm) to about 550 nm, and an ultraviolet-visible absorption spectrum of the quantum dot includes a first exciton absorption peak and a second exciton absorption peak, a composition including the same, a composite, and an electronic device.

A phosphor plate including a base material, and a plate-shaped composite including phosphors dispersed in the base material, in which in a case in which an absorption spectrum of light having a wavelength of 300 nm to 700 nm is measured, when an absorbance at 455 nm is defined as A455(%), an absorbance at 700 nm is defined as A700(%), and a thickness of the phosphor plate is defined as T (mm), (A700/A455)/T satisfies 0.01 or more and 1.00 or less.

A potassium hexafluoromanganate is represented by General Formula: K.sub.2MnF.sub.6, and a diffuse reflectance with respect to light having a wavelength of 550 nm is 60% or more.

Described herein are polymeric compounds including an acceptor dye and donor luminophore, a polymer, and optionally a bioconjugate group. A polymeric compound of the present invention may have a structure represented by: A-B-C or C-A-B, wherein A is an acceptor dye; B is a polymer comprising one or more hydrophobic unit(s) and one or more hydrophilic unit(s); and optionally C, wherein C, when present, comprises a bioconjugate group, wherein one or more donor luminophore(s) are each separately attached to a portion of the polymer and/or to a portion of the acceptor dye. Also described herein are compositions comprising the polymeric compounds and methods of preparing and using the same.

Described herein are polymeric compounds including an acceptor dye and donor luminophore, a polymer, and optionally a bioconjugate group. A polymeric compound of the present invention may have a structure represented by: A-B-C or C-A-B, wherein A is an acceptor dye; B is a polymer comprising one or more hydrophobic unit(s) and one or more hydrophilic unit(s); and optionally C, wherein C, when present, comprises a bioconjugate group, wherein one or more donor luminophore(s) are each separately attached to a portion of the polymer and/or to a portion of the acceptor dye. Also described herein are compositions comprising the polymeric compounds and methods of preparing and using the same.

A quantum dot of the present invention is a nanocrystal represented by AgInE.sub.2 (E is at least one of tellurium, selenium, and sulfur) containing silver, indium, and chalcogen, in which a fluorescence wavelength is within a range of a near-infrared region of 700 to 1500 nm, a fluorescence full width at half maximum is 150 nm or less, and a fluorescence quantum yield is higher than 20%. In the present invention, an average particle diameter is preferably 1 nm or more and 15 nm or less. In addition, a method for producing a quantum dot of the present invention includes synthesizing a quantum dot represented by AgInE.sub.2 (E is at least one of tellurium, selenium, and sulfur) from a silver raw material, an indium raw material, and a chalcogenide raw material (chalcogenide is at least one of tellurium, selenium, and sulfur).

Provided is a polymerizable composition including a quantum dot, a polyfunctional thiol, a polyfunctional (meth)acrylate, and a phenolic compound.