Preparation of Stable, Bright Luminescent Nanoparticles Having Compositionally Engineered Properties

A method is provided for preparing luminescent semiconductor nanoparticles composed of a first component X, a second component A, and a third component B, wherein X, A, and B are different, by combining B with X and A in an amount such that the molar ratio B:(A+B) is in the range of approximately 0....

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Bibliographic Details
Main Authors ZEHNDER DONALD A, TREADWAY JOSEPH A, SCHRIER MARC D, BARTEL JOSEPH A
Format Patent
LanguageEnglish
Published 14.02.2013
Subjects
ADHESIVES
APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
BASIC ELECTRIC ELEMENTS
CABLES
CHEMISTRY
CONDUCTORS
DYES
ELECTRICITY
INSULATORS
LAYERED PRODUCTS
LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE
MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES
METALLURGY
MISCELLANEOUS APPLICATIONS OF MATERIALS
MISCELLANEOUS COMPOSITIONS
NANOTECHNOLOGY
NATURAL RESINS
PAINTS
PERFORMING OPERATIONS
POLISHES
PREPARATION OF CARBON BLACK
PROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TOSURFACES, IN GENERAL
SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING ORDIELECTRIC PROPERTIES
SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES
SPRAYING OR ATOMISING IN GENERAL
TRANSPORTING
TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS,TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES
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Summary:A method is provided for preparing luminescent semiconductor nanoparticles composed of a first component X, a second component A, and a third component B, wherein X, A, and B are different, by combining B with X and A in an amount such that the molar ratio B:(A+B) is in the range of approximately 0.001 to 0.20 and the molar ratio X:(A+B) is in the range of approximately 0.5:1.0 to 2:1. The characteristics of these nanoparticles can be substantially similar to those of nanoparticles containing only X and B while maintaining many useful properties characteristic of nanoparticles containing only X and A; and can additionally exhibit emergent properties such as a peak emission energy less than that characteristic of a particle composed of XA or XB alone. This method is particularly applicable to the preparation of stable, bright nanoparticles that emit in the red to infrared regions of the electromagnetic spectrum.
Bibliography:Application Number: US201213608296