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US 2006/0135669 A1Published application
Preparation of metal chalcogenide nanoparticles and nanocomposites therefrom
AssigneeAPS Laboratory
InventorHong-Son Ryang
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Abstract
Disclosed are metal chalcogenide nanocomposites made of guest metal chalcogenide precursors and host metal oxide sols made by mixing at least one metal alkoxide, at least one organosilane, at least one boron oxide compound, and a liquid, and chalcogenizing the mixture. Also disclosed are dielectric nano-composites containing a dielectric material such as a polymer and the metal chalcogenide nanocomposites.
Claims29
A metal chalcogenide nanocomposite made by chalcogenizing a host-guest metal oxide sol,
- wherein the host-guest metal oxide sol made by mixing:
- from about 0.01% to about 80% by weight of at least one guest metal chalcogenide precursor;
- and
- from about 20% to about 99.99% by weight of a host metal oxide sol made by mixing:
- at least one metal oxide, wherein the metal is a transition metal, a post-transition metal, an alkali metal, or alkaline earth metal;
- at least one organosilane;
- at least one boron oxide compound selected from the group consisting of boric acid, alkoxy boron compounds, hydrocarbyl boric acids, hydrocarbyl hydroxy boron alkoxides, and hydroxy boron alkoxides;
- and
- a liquid.
6 more elements
A metal chalcogenide nanocomposite made by mixing:
- from about 0.01% to about 80% by weight of at least one metal chalcogenide;
- and
- from about 20% to about 99.99% by weight of a host metal oxide sol made by mixing:
- at least one metal oxide, wherein the metal is a transition metal, a post-transition metal, an alkali metal, or alkaline earth metal;
- at least one organosilane;
- at least one boron oxide compound selected from the group consisting of boric acid, alkoxy boron compounds, hydrocarbyl boric acids, hydrocarbyl hydroxy boron alkoxides, and hydroxy boron alkoxides;
- and
- a liquid.
5 more elements
A dried metal chalcogenide nanocomposite, comprising:
- from about 0.01% to about 80% by weight of at least one metal chalcogenide;
- and
- from about 20% to about 99.99% by weight of a host metal oxide sol composition, comprising:
- from about 15% to about 70% by weight of at least one metal oxide, wherein the metal is a transition metal, a post-transition metal, an alkali metal, or alkaline earth metal;
- from about 10% to about 75% by weight of at least one organosilane;
- and
- from about 0.5% to about 40% by weight of at least one boron oxide compound,
- wherein the dried metal chalcogenide nanocomposite comprises less than about 0.5% by weight water.
5 more elements
A dielectric composite comprising:
- from about 1% to about 99.99% by weight of a dielectric material;
- from about 0.01% to about 99% by weight of a metal chalcogenide nanocomposite substantially uniformly dispersed within the dielectric material, the metal chalcogenide nanocomposite made by chalcogenizing a host-guest metal oxide sol comprising from about 0.01% to about 80% by weight of at least one guest metal chalcogenide precursor;
- and from about 20% to about 99.99% by weight of a host metal oxide sol made by mixing at least one metal oxide, wherein the metal is a transition metal, a post-transition metal, an alkali metal, or alkaline earth metal, at least one organosilane;
- at least one boron oxide compound selected from the group consisting of boric acid, alkoxy boron compounds, hydrocarbyl boric acids, hydrocarbyl hydroxy boron alkoxides, and hydroxy boron alkoxides, and a liquid.
1 more element
A method of making the metal chalcogenide nanocomposite, comprising;
- mixing at least one guest metal chalcogenide precursor;
- at least one metal oxide, wherein the metal is a transition metal, a post-transition metal, an alkali metal, or alkaline earth metal;
- at least one organosilane;
- at least one boron oxide compound selected from the group consisting of boric acid, alkoxy boron compounds, hydrocarbyl boric acids, hydrocarbyl hydroxy boron alkoxides, and hydroxy boron alkoxides;
- and a liquid to provide a host-guest metal oxide sol, and chalcogenizing the host-guest metal oxide sol to provide the metal chalcogenide nanocomposite.
2 more elements
Dependencies are inferred from the claim text.