Nanocomposites
First Claim
Patent Images
1. A composite material, comprising:
- a plurality of discrete, preformed inorganic nanowires, wherein the inorganic nanowires comprise a core and one or more shell layers disposed about the core; and
a small molecule or molecular matrix or a matrix comprising at least one polymer, which small molecule or molecular matrix or components thereof or which matrix comprising at least one polymer or components thereof are used to orient the nanowires.
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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.
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Citations
103 Claims
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1. A composite material, comprising:
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a plurality of discrete, preformed inorganic nanowires, wherein the inorganic nanowires comprise a core and one or more shell layers disposed about the core; and a small molecule or molecular matrix or a matrix comprising at least one polymer, which small molecule or molecular matrix or components thereof or which matrix comprising at least one polymer or components thereof are used to orient the nanowires.
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- 2. A composite material, comprising one or more discrete, preformed nanostructures and a polymeric matrix comprising a polysiloxane.
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11. A composite material, comprising:
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a small molecule or molecular matrix or a matrix comprising at least one organic polymer or inorganic glass; and one or more discrete, preformed inorganic nanowires, wherein the one or more inorganic nanowires are selected from the group consisting of semiconducting inorganic nanowires and ferroelectric inorganic nanowires, which semiconducting inorganic nanowires comprise a core and one or more shell layers disposed about the core, and which semiconducting inorganic nanowires do not comprise a magnetic material, wherein the one or more inorganic nanowires have an aspect ratio greater than about 10, and wherein the inorganic nanowires are dispersed in the matrix. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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27. A composite material, comprising:
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a plurality of discrete, preformed inorganic nanowires, each comprising a core and at least one shell; and a glassy or crystalline inorganic matrix or a matrix comprising at least one polymer, wherein the composite material is distributed on a first layer of a material that conducts substantially only electrons or substantially only holes. - View Dependent Claims (28, 29, 30, 31, 32)
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33. A composite material, comprising:
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a matrix, wherein the matrix comprises at least one polymer, comprises at least one glass, or is a small molecule or molecular matrix, which small molecule or molecular matrix conducts both electrons and holes, conducts substantially only electrons, is semiconducting, or is substantially nonconductive; and one or more discrete, preformed inorganic nanowires, the one or more nanowires each comprising a core and at least one shell, the core comprising a first semiconducting material having a conduction band and a valence band, the shell comprising a second semiconducting material having a conduction band and a valence band, and the first and second materials having a type I band offset, wherein the nanowires are dispersed in the matrix. - View Dependent Claims (34, 35, 36)
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37. A composite material, comprising:
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one or more inorganic nanowires comprising a first semiconducting material having a conduction band and a valence band, wherein the nanowires comprise a core and at least one shell; and a matrix comprising a second semiconducting material having a conduction band and a valence band, wherein the first and second materials have a type I band offset. - View Dependent Claims (38, 39, 40, 41, 42)
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43. A composite material, comprising:
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one or more inorganic nanowires comprising a first semiconducting material having a conduction band and a valence band, wherein the nanowires comprise a core and at least one shell; and a matrix comprising a second semiconducting material having a conduction band and a valence band, wherein the first and second materials have a type II band offset. - View Dependent Claims (44, 45, 46, 47, 48, 49)
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50. A composite material, comprising:
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a plurality of discrete, preformed inorganic nanowires, wherein the nanowires each comprise a core and one or more shell layers disposed about the core; and a small molecule or molecular matrix or a matrix comprising at least one polymer, the at least one polymer or constituents of the small molecule or molecular matrix having an affinity for at least a portion of a surface of the nanowires.
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51. A composite material, comprising:
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a plurality of discrete, preformed inorganic nanowires, wherein the nanowires each comprise one or more surface ligands, and wherein the nanowires each comprise a core and one or more shell layers disposed about the core; and a small molecule or molecular matrix or a matrix comprising at least one polymer, the at least one polymer or constituents of the small molecule or molecular matrix having an affinity for the one or more surface ligands. - View Dependent Claims (52, 53)
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54. A composite material, comprising:
- one or more discrete, preformed ferroelectric nanowires or one or more discrete, preformed ferroelectric nanoparticles and a small molecule or molecular matrix or a matrix comprising one or more polymers.
- View Dependent Claims (55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73)
- 74. A composition comprising one or more discrete, preformed ferroelectric nanowires or nanoparticles, at least one solvent, and one or more polymers.
- 95. A composition, comprising one or more discrete, preformed ferroelectric nanowires or nanoparticles and at least one monomeric precursor of at least one polymer.
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103. A composite material, comprising:
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a small molecule or molecular matrix or a matrix comprising at least one inorganic glass; and one or more discrete, preformed branched nanowires, one or more discrete, preformed inorganic nanowires, or a combination thereof, wherein the one or more inorganic nanowires are selected from the group consisting of semiconducting inorganic nanowires and ferroelectric inorganic nanowires, and wherein the one or more inorganic nanowires have an aspect ratio greater than about 10.
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Specification