Abstract: Disclosed herein are methods and compositions of nanoparticles having one or more layers of organic coating. In some embodiments, a nanoparticle comprises a core/shell nanocrystal comprising a first coating layer comprising a plurality of organic molecules, and a second organic coating layer surrounding the first organic coating layer, wherein the second coating layer comprises a plurality of organic molecules. Further, the organic molecules of the second coating layer are intercalated between the organic molecules of the first coating layer.

Abstract: Light modules for converting the wavelength of light are described herein along with methods for using and making such modules and devices incorporating such modules.

Abstract: Quantum dots that are cadmium-free and/or stoichiometrically tuned are disclosed, as are methods of making them. Inclusion of the quantum dots and others in a stabilizing polymer matrix is also disclosed. The polymers are chosen for their strong binding affinity to the outer layers of the quantum dots such that the bond dissociation energy between the polymer material and the quantum dot is greater than the energy required to reach the melt temperature of the cross-linked polymer.

Abstract: Passivated semiconductor nanoparticles and methods for the fabrication and use of passivated semiconductor nanoparticles is provided herein.

Abstract: Light modules for converting the wavelength of light are described herein along with methods for using and making such modules and devices incorporating such modules.

Abstract: Fluorescent semiconductor nanocrystals and quantum dots having an inorganic coating on the outermost surface of the nanocrystal are described herein as well as methods for preparing and using such nanocrystals and quantum dots. Devices in which such nanocrystals and quantum dots are used are also described.

Abstract: Disclosed herein are metal printed circuit boards, particularly aluminum based printed circuit boards. Also disclosed are methods of making the metal printed circuit boards. Also disclosed are lighting systems, such as LED lighting systems, employing the disclosed metal printed circuit boards.

Abstract: The invention relates to methods for preparing 3-element semiconductor nanocrystals of the formula WYxZ(1?x), wherein W is a Group II element, Y and Z are different Group VI elements, and 0<x<1, comprising dissolving a Group II element, a first Group VI element, and a second Group VI element in a one or more solvents. The Group II, VI and VI elements are combined to provide a II:VI:VI SCN precursor solution, which is heated to a temperature sufficient to produce semiconductor nanocrystals of the formula WYxZ(1?x). The solvent used to dissolve the Group II element comprises octadecene and a fatty acid. The solvent used to dissolve the Group VI elements comprises octadecene. The invention also includes semiconductor nanocrystals prepared according to the disclosed methods, as well as methods of using the semiconductor nanocrystals.

Abstract: The invention relates to methods for preparing 3-element semiconductor nanocrystals of the formula WYxZ(1-x), wherein W is a Group II element, Y and Z are different Group VI elements, and 0<X<1, comprising dissolving a Group II element, a first Group VI element, and a second Group VI element in a one or more solvents. The Group II, VI and VI elements are combined to provide a II:VI:VI SCN precursor solution, which is heated to a temperature sufficient to produce semiconductor nanocrystals of the formula WYxZ(1-x). The solvent used to dissolve the Group II element comprises octadecene and a fatty acid. The solvent used to dissolve the Group VI elements comprises octadecene. The invention also includes semiconductor nanocrystals prepared according to the disclosed methods, as well as methods of using the semiconductor nanocrystals.

Abstract: The present invention is directed to compositions comprising conglomerated semiconductor nanocrystals, methods of making conglomerated semiconductor nanocrystals, and methods of using conglomerated semiconductor nanocrystals. Conglomerated semiconductor nanocrystals can be prepared by agitation in solutions comprising one or more nonpolar solvents, or by crosslinking to a variety of polymers. The invention also includes methods of preparing hydrophilic conglomerated semiconductor nanocrystals by enclosing them within a hydrophilic polymer “cage.” Conglomerated semiconductor nanocrystals are useful in a variety of fluorescence based detection systems.

Abstract: Nanoclusters comprising a metal core and outer ligand layer and methods of making and use them are disclosed. The nanoclusters have properties which are tunable by virtue of adjusting various aspects of the reaction.