Hybrid organic-inorganic perovskite-based solar cell with copper oxide as a hole transport material
US-2017324053-A1 · Nov 9, 2017 · US
Oxide layers and methods of making the same
US10879012B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10879012-B2 |
| Application number | US-201815997403-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jun 4, 2018 |
| Priority date | Jun 2, 2017 |
| Publication date | Dec 29, 2020 |
| Grant date | Dec 29, 2020 |
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- Title
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Abstract
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The present application discloses devices that include a perovskite layer, a first layer that includes an oxide, and an interface layer, where the interface layer is positioned between the first layer and the perovskite layer, the interface layer is in physical contact with both the first layer and the perovskite layer, and the interface layer consists essentially of the oxide.
First claim
Opening claim text (preview).
What is claimed is: 1. A device comprising, in order: a first oxide layer comprising TiO 2 ; a perovskite layer comprising a halogen; a second oxide layer comprising TiO 2 and having a first surface and a second surface defining a thickness between the first surface and the second surface; and a hole transport layer, wherein: the thickness is between 1 nm and 16 nm, the first oxide layer is n-type, the first surface is in physical contact with the perovskite layer, resulting in an interface between the perovskite layer and the first surface, the interface is substantially free of an oxygen species comprising the halogen, the second surface is in physical contact with the hole transport layer, the second oxide layer is n type at the interface, and the second oxide layer is less n-type at the second surface than at the interface. 2. The device of claim 1 , wherein the second oxide layer is free of an oxy-halogen species. 3. The device of claim 1 , further comprising a substrate, wherein the first oxide layer is positioned between the perovskite layer and the substrate. 4. The device of claim 1 , wherein the perovskite layer comprises at least one methyl ammonium lead iodide or formamidinium lead iodide. 5. The device of claim 1 , wherein the first oxide layer comprises a transparent conducting oxide. 6. The device of claim 5 , wherein the transparent conducting oxide comprises fluorine-doped tin oxide. 7. The device of claim 1 , wherein the hole transport layer comprises spiro-OMeTAD. 8. The device of claim 2 , wherein the oxy-halogen species comprises an oxy-iodo species. 9. The device of claim 1 , wherein the interface is free of any oxy-halogen species. 10. The device of claim 1 , wherein the second oxide layer is deposited by atomic layer deposition in the absence of oxygen.
Assignees
Inventors
Classifications
Organic perovskites; Hybrid organic-inorganic perovskites [HOIP], e.g. CH3NH3PbI3 · CPC title
Photovoltaic [PV] devices · CPC title
- H01G9/2018Primary
characterised by the ionic charge transport species, e.g. redox shuttles · CPC title
- H10K30/151Primary
the wide bandgap semiconductor comprising titanium oxide, e.g. TiO2 · CPC title
Dye sensitized solar cells · CPC title
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Frequently asked questions
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- What does patent US10879012B2 cover?
- The present application discloses devices that include a perovskite layer, a first layer that includes an oxide, and an interface layer, where the interface layer is positioned between the first layer and the perovskite layer, the interface layer is in physical contact with both the first layer and the perovskite layer, and the interface layer consists essentially of the oxide.
- Who is the assignee on this patent?
- Alliance Sustainable Energy
- What technology area does this patent fall under?
- Primary CPC classification H01G9/2018. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Dec 29 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).