Synthesis and processing of pure and nv nanodiamonds and other nanostructures for quantum computing and magnetic sensing applications
US-2017373153-A1 · Dec 28, 2017 · US
Synthesis and processing of novel phase of boron nitride (Q-BN)
US10529564B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10529564-B2 |
| Application number | US-201615230956-A |
| Country | US |
| Kind code | B2 |
| Filing date | Aug 8, 2016 |
| Priority date | Aug 7, 2015 |
| Publication date | Jan 7, 2020 |
| Grant date | Jan 7, 2020 |
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- Title
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Abstract
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Using processes disclosed herein, materials and structures are created and used. For example, processes can include melting boron nitride or amorphous carbon into an undercooled state followed by quenching. Exemplary new materials disclosed herein can be ferromagnetic and/or harder than diamond. Materials disclosed herein may include dopants in concentrations exceeding thermodynamic solubility limits. A novel phase of solid carbon has structure different than diamond and graphite.
First claim
Opening claim text (preview).
What is claimed is: 1. A method comprising: melting boron nitride at a temperature no greater than about 2800 K by a laser pulse in an environment at ambient temperature and pressure; and quenching the melted boron nitride to create a form of boron nitride different than that of the melted boron nitride. 2. The method of claim 1 , wherein the boron nitride is hexagonal boron nitride. 3. The method of claim 1 , wherein the melting comprises nanosecond pulsed laser melting at ambient temperatures and atmospheric pressure in air. 4. The method of claim 1 , further comprising: melting the different form of boron nitride; and quenching the melted different form of boron nitride to create cubic boron nitride. 5. The method of claim 4 , further comprising: depositing diamond on the cubic boron nitride by pulsed laser deposition of carbon to create a cubic boron nitride and diamond heterostructure, including epitaxially growing the diamond using the cubic boron nitride as a template for epitaxial diamond growth. 6. The method of claim 4 , wherein the quenching the melted different form of boron nitride includes quenching the melted different form of boron nitride to create phase-pure cubic boron nitride. 7. The method of claim 1 , further comprising: before the melting, depositing the boron nitride as a film on a substrate at room temperature. 8. The method of claim 7 , wherein the substrate is tungsten carbide, silicon, copper, sapphire, glass, or a polymer. 9. The method of claim 4 , wherein the created cubic boron nitride is a nanodot, microcrystal, nanoneedle, microneedle or large area single crystal film. 10. The method of claim 7 , including epitaxially growing the different form of boron nitride using the substrate as a template for epitaxial growth. 11. The method of claim 1 , wherein the laser pulse is a nanosecond laser pulse. 12. The method of claim 1 , wherein the different form of boron nitride is cubic boron nitride.
Assignees
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Classifications
with electromagnetic radiation, e.g. laser annealing (laser cutting H10P54/20) · CPC title
Pulsed laser beam · CPC title
Crystal orientation · CPC title
Nanowires · CPC title
Polycrystalline · CPC title
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Frequently asked questions
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- What does patent US10529564B2 cover?
- Using processes disclosed herein, materials and structures are created and used. For example, processes can include melting boron nitride or amorphous carbon into an undercooled state followed by quenching. Exemplary new materials disclosed herein can be ferromagnetic and/or harder than diamond. Materials disclosed herein may include dopants in concentrations exceeding thermodynamic solubility …
- Who is the assignee on this patent?
- Univ North Carolina State
- What technology area does this patent fall under?
- Primary CPC classification H10P14/3452. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Jan 07 2020 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).