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Highly polarizable 3D organic perovskites and electro-optic materials comprising same
US11970501B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11970501-B2 |
| Application number | US-202117464598-A |
| Country | US |
| Kind code | B2 |
| Filing date | Sep 1, 2021 |
| Priority date | Sep 2, 2020 |
| Publication date | Apr 30, 2024 |
| Grant date | Apr 30, 2024 |
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- Title
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Abstract
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The present invention relates to highly polarizable 3D organic perovskites of the general formula ABX 3 , prepared by introducing halogen functional groups in the A-site cation (in which the A and B sites are occupied by organic cations and the X site is a monovalent non-metallic counterion). The (DCl)(NH 4 )(BF 4 ) 3 crystal exhibits a strong linear electrooptic (EO) effect with an effective EO coefficient of 20 pmV −1 , which is 10 times higher than that of metal halide perovskites. These 3D organic perovskites are solution processed and compatible with silicon, and illustrate the potential of rationally-designed all-organic perovskites for use in on-chip modulators, electro-optic devices, piezoelectric devices, or silicon photonics devices.
First claim
Opening claim text (preview).
What is claimed is: 1. A 3D organic perovskite having the Formula (I): ABX 3 (I) wherein: A has the formula DR 2+ , wherein DR 2+ is: wherein R is F, Cl, Br, CN, or OH; and R′ is H or CH 3 ; B is NH 4 + ; and X is BF 4 − or PF 6 − . 2. The organic perovskite of claim 1 , wherein R is F or Cl. 3. The organic perovskite of claim 1 or 2 , wherein X is BF 4 − . 4. The organic perovskite of claim 1 , which is (DCI)(NH 4 )(BF 4 ) 3 . 5. The organic perovskite of claim 1 , which is (DF)(NH 4 )(BF 4 ) 3 .
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Classifications
- C07D487/08Primary
Bridged systems · CPC title
Coordination compounds · CPC title
based on electro-optical organic material (G02F1/07, {G02F1/13} take precedence) · CPC title
Halides or oxyhalides of phosphorus · CPC title
Boron halogen compounds · CPC title
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- What does patent US11970501B2 cover?
- The present invention relates to highly polarizable 3D organic perovskites of the general formula ABX 3 , prepared by introducing halogen functional groups in the A-site cation (in which the A and B sites are occupied by organic cations and the X site is a monovalent non-metallic counterion). The (DCl)(NH 4 )(BF 4 ) 3 crystal exhibits a strong linear electrooptic (EO) effect with an effective …
- Who is the assignee on this patent?
- Huawei Tech Canada Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification C07D487/08. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Apr 30 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).