Substrate-free 2D tellurene
US-11827515-B2 · Nov 28, 2023 · US
Twinned two-dimensional tellurium crystals with co-existing opposite chirality
US12145843B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12145843-B2 |
| Application number | US-202117490802-A |
| Country | US |
| Kind code | B2 |
| Filing date | Sep 30, 2021 |
| Priority date | Sep 30, 2020 |
| Publication date | Nov 19, 2024 |
| Grant date | Nov 19, 2024 |
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Abstract
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Processes for synthesizing substrate-free twinned 2D tellurium crystals with co-existing opposite chirality, and twinned 2D tellurium crystals produced thereby. The substrate-free twinned 2D tellurium crystals include a first wing and a second wing, the first wing and second wing have opposite chirality, and the first wing and the second wing are joined together at an angle to form a V-shaped crystal.
First claim
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The invention claimed is: 1. A substrate-free twinned 2D tellurium crystal with co-existing opposite chirality, the twinned 2D tellurium crystal comprising a first wing and a second wing that coexist and are separated by a twinning boundary, each of the first and second wings having a crystal structure made up of a plurality of spiral chains of bonded tellurium atoms, the first wing and second wing having opposite chirality, and the first wing and the second wing are joined together at the twinning boundary at an angle to form a V-shaped crystal, each of the first and second wings having an atom arrangement at the twinning boundary where three tellurium atoms per turn in each spiral chain form obtuse angles that exhibit a mirror symmetry with the twinning boundary as center line. 2. The substrate-free twinned 2D tellurium crystal of claim 1 , wherein the angle between the first wing and the second wing of the V-shaped crystal is angles ranged from 73 to 78.5 degrees. 3. The substrate-free twinned 2D tellurium crystal of claim 1 , wherein the angle between the first wing and the second wing of the V-shaped crystal is 76.2±0.80 degrees. 4. The substrate-free twinned 2D tellurium crystal of claim 1 , wherein the first wing and the second wing each independently has a width of 10 to 20 nm.
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obtained by optical microscopy · CPC title
by unit-cell parameters, atom positions or structure diagrams · CPC title
by UV- or VIS- data · CPC title
- C01B19/02Primary
Elemental selenium or tellurium · CPC title
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- What does patent US12145843B2 cover?
- Processes for synthesizing substrate-free twinned 2D tellurium crystals with co-existing opposite chirality, and twinned 2D tellurium crystals produced thereby. The substrate-free twinned 2D tellurium crystals include a first wing and a second wing, the first wing and second wing have opposite chirality, and the first wing and the second wing are joined together at an angle to form a V-shaped c…
- Who is the assignee on this patent?
- Purdue Research Foundation
- What technology area does this patent fall under?
- Primary CPC classification C01B19/02. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Nov 19 2024 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).