Abstract: Methods of processing nanocrystals to remove excess free and bound organic material and particularly surfactants used during the synthesis process, and resulting nanocrystal compositions, devices and systems that are physically, electrically and chemically integratable into an end application.

Abstract: The present invention provides polymeric compositions that can be used to modify charge transport across a nanocrystal surface or within a nanocrystal-containing matrix, as well as methods for making and using the novel compositions.

Abstract: This invention provides compositions and devices having structurally ordered nanostructures, as well as methods for producing structurally ordered nanostructures.

Abstract: This invention provides composite materials comprising nanostructures (e.g., nanowires, branched nanowires, nanotetrapods, nanocrystals, and nanoparticles). Methods and compositions for making such nanocomposites are also provided, as are articles comprising such composites. Waveguides and light concentrators comprising nanostructures (not necessarily as part of a nanocomposite) are additional features of the invention.

Abstract: Methods for forming thin dielectric films by selectively depositing a conformal film of dielectric material on a high aspect ratio structure have uses in semiconductor processing and other applications. A method for forming a dielectric film involves providing in a deposition reaction chamber a substrate having a gap on the surface. The gap has a top opening and a surface area comprising a bottom and sidewalls running from the top to the bottom. A conformal silicon oxide-based dielectric film is selectively deposited in the gap by first preferentially applying a film formation catalyst or a catalyst precursor on a portion representing less than all of the gap surface area. The substrate surface is then exposed to a silicon-containing precursor gas such that a silicon oxide-based dielectric film layer is preferentially formed on the portion of the gap surface area.

Abstract: Ligand compositions for use in preparing discrete coated nanostructures are provided, as well as the coated nanostructures themselves and devices incorporating same. Methods for post-deposition shell formation on a nanostructure and for reversibly modifying nanostructures are also provided. The ligands and coated nanostructures of the present invention are particularly useful for close packed nanostructure compositions, which can have improved quantum confinement and/or reduced cross-talk between nanostructures.

Abstract: The present invention provides polymeric compositions that can be used to modify charge transport across a nanocrystal surface or within a nanocrystal-containing matrix, as well as methods for making and using the novel compositions.

Abstract: The present invention provides compositions (small molecules, oligomers and polymers) that can be used to modify charge transport across a nanocrystal surface or within a nanocrystal-containing matrix, as well as methods for making and using the novel compositions.

Abstract: Methods for producing nanostructures, particularly Group III-V semiconductor nanostructures, are provided. The methods include use of novel Group III and/or Group V precursors, novel surfactants, oxide acceptors, high temperature, and/or stable co-products. Related compositions are also described. Methods and compositions for producing Group III inorganic compounds that can be used as precursors for nanostructure synthesis are provided. Methods for increasing the yield of nanostructures from a synthesis reaction by removal of a vaporous by-product are also described.

Abstract: The present invention relates to a system and process for producing a nanowire-material composite. A substrate having nanowires attached to a portion of at least one surface is provided. A material is deposited over the portion to form the nanowire-material composite. The process further optionally includes separating the nanowire-material composite from the substrate to form a freestanding nanowire-material composite. The freestanding nanowire material composite is optionally further processed into a electronic substrate. A variety of electronic substrates can be produced using the methods described herein. For example, a multi-color light-emitting diode can be produced from multiple, stacked layers of nanowire-material composites, each composite layer emitting light at a different wavelength.

Abstract: The present invention provides compositions (small molecules, oligomers and polymers) that can be used to modify charge transport across a nanocrystal surface or within a nanocrystal-containing matrix, as well as methods for making and using the novel compositions.

Abstract: A metal- and metalloid-free nanolaminate dielectric film can be formed according to a pulsed layer deposition (PDL) process. A metal- and metalloid-free compound is used to catalyze the reaction of silica deposition by surface reaction of alkoxysilanols. Films can be grown at rates faster than 30 nm per exposure cycle. The invention can be used for the deposition of both doped (e.g., PSG) and undoped silicon oxide films. The films deposited are conformal, hence the method can accomplish void free gap-fill in high aspect ratio gaps encountered in advanced technology nodes (e.g., the 45 nm technology node and beyond), and can be used in other applications requiring conformal dielectric deposition.

Abstract: This invention provides composite materials comprising nanostructures (e.g., nanowires, branched nanowires, nanotetrapods, nanocrystals, and nanoparticles). Methods and compositions for making such nanocomposites are also provided, as are articles comprising such composites. Waveguides and light concentrators comprising nanostructures (not necessarily as part of a nanocomposite) are additional features of the invention.

Abstract: The present invention relates to a system and process for producing a nanowire-material composite. A substrate having nanowires attached to a portion of at least one surface is provided. A material is deposited over the portion to form the nanowire-material composite. The process further optionally includes separating the nanowire-material composite from the substrate to form a freestanding nanowire-material composite. The freestanding nanowire material composite is optionally further processed into an electronic substrate. A variety of electronic substrates can be produced using the methods described herein. For example, a multi-color light-emitting diode can be produced from multiple, stacked layers of nanowire-material composites, each composite layer emitting light at a different wavelength.

Abstract: Methods of processing nanocrystals to remove excess free and bound organic material and particularly surfactants used during the synthesis process, and resulting nanocrystal compositions, devices and systems that are physically, electrically and chemically integratable into an end application.

Abstract: The present invention provides compositions (small molecules, oligomers and polymers) that can be used to modify charge transport across a nanocrystal surface or within a nanocrystal-containing matrix, as well as methods for making and using the novel compositions.

Abstract: Methods of processing nanocrystals to remove excess free and bound organic material and particularly surfactants used during the synthesis process, and resulting nanocrystal compositions, devices and systems that are physically, electrically and chemically integratable into an end application.

Abstract: Methods of processing nanocrystals to remove excess free and bound organic material and particularly surfactants used during the synthesis process, and resulting nanocrystal compositions, devices and systems that are physically, electrically and chemically integratable into an end application.

Abstract: Ligand compositions for use in preparing discrete coated nanostructures are provided, as well as the coated nanostructures themselves and devices incorporating same. Methods for post-deposition shell formation on a nanostructure, for reversibly modifying nanostructures, and for manipulating the electronic properties of nanostructures are also provided. The ligands and coated nanostructures of the present invention are particularly useful for close packed nanostructure compositions, which can have improved quantum confinement and/or reduced cross-talk between nanostructures. Ligands of the present invention are also useful for manipulating the electronic properties of nanostructure compositions (e.g., by modulating energy levels, creating internal bias fields, reducing charge transfer or leakage, etc.).

Abstract: This invention provides composite materials comprising nanostructures (e.g., nanowires, branched nanowires, nanotetrapods, nanocrystals, and nanoparticles). Methods and compositions for making such nanocomposites are also provided, as are articles comprising such composites. Waveguides and light concentrators comprising nanostructures (not necessarily as part of a nanocomposite) are additional features of the invention.