Group iii-v compound having layered structure and ferroelectric-like properties
US-2022144661-A1 · May 12, 2022 · US
Layered group III-V compound and nanosheet containing antimony, and electrical device using the same
US11643753B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11643753-B2 |
| Application number | US-202017111190-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 3, 2020 |
| Priority date | Sep 14, 2020 |
| Publication date | May 9, 2023 |
| Grant date | May 9, 2023 |
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Abstract
Official abstract text for this publication.
Proposed are a layered Group III-V antimony compound, a Group III-V nanosheet that may be prepared using the same, and an electrical device including the materials. There is proposed a layered compound having a composition represented by [Formula 1] M x−m A y Sb z (Where M is at least one of Group I elements, A is at least one of Group III elements, x, y, and z are positive numbers which are determined according to stoichiometric ratios to ensure charge balance when m is 0, and 0<m<x).
First claim
Opening claim text (preview).
What is claimed is: 1. A layered compound having a composition represented by Formula 1 below: M x−m A y Sb z [Formula 1] (where M is at least one of Group I elements, A is at least one of Group III elements, x, y, and z are positive numbers which are determined according to stoichiometric ratios to ensure charge balance when m is 0, and 0.1x≤m≤0.9x), wherein the layered compound exhibits ferroelectric-like properties. 2. The layered compound according to claim 1 , wherein the m satisfies 0.25x ≤m≤0.75x. 3. The layered compound according to claim 1 , wherein the M is Na, K or a combination thereof. 4. The layered compound according to claim 1 , wherein the A is Al, Ga, In or a combination thereof. 5. The layered compound according to claim 1 , wherein the layered compound further comprises H. 6. The layered compound according to claim 1 , wherein a crystal structure of the layered compound exhibits a space group of P2 1 /c or a space group of Cmca. 7. The layered compound according to claim 1 , wherein the layered compound comprises an amorphous phase. 8. The layered compound according to claim 1 , wherein the layered compound exhibits resistance switching properties. 9. A nanosheet comprising a composition represented by Formula 1 below, and prepared through a physical or chemical peeling method: M x−m A y Sb z [Formula 1] (where M is at least one of Group I elements, A is at least one of Group III elements, x, y, and z are positive numbers which are determined according to stoichiometric ratios to ensure charge balance when m is 0, and 0.1x≤m≤0.9x) wherein the nanosheet exhibits ferroelectric-like properties. 10. The nanosheet according to claim 9 , wherein a crystal structure of the nanosheet exhibits a space group of P2 1 /c or a space group of Cmca. 11. The nanosheet according to claim 9 , wherein the nanosheet comprises an amorphous phase. 12. The nanosheet according to claim 9 , wherein the nanosheet exhibits resistance switching properties. 13. An electrical device comprising the layered compound according to claim claim 1 .
Assignees
Inventors
Classifications
Manufacture or treatment of nanostructures · CPC title
- C30B29/40Primary
AIIIBV compounds {wherein A is B, Al, Ga, In or Tl and B is N, P, As, Sb or Bi} · CPC title
Nanotechnology for materials or surface science, e.g. nanocomposites · CPC title
Crystals with laminate structure, e.g. "superlattices" · CPC title
Isothermal recrystallisation · CPC title
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- What does patent US11643753B2 cover?
- Proposed are a layered Group III-V antimony compound, a Group III-V nanosheet that may be prepared using the same, and an electrical device including the materials. There is proposed a layered compound having a composition represented by [Formula 1] M x−m A y Sb z (Where M is at least one of Group I elements, A is at least one of Group III elements, x, y, and z are positive numbers which are d…
- Who is the assignee on this patent?
- Univ Yonsei Iacf
- What technology area does this patent fall under?
- Primary CPC classification C30B29/40. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue May 09 2023 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 6 related publications on this page (citations in our corpus or others sharing the same primary CPC).