Solar cell, photoabsorber layer, and forming method of photoabsorber layer
US-2019173025-A1 · Jun 6, 2019 · US
Photoelectric conversion film, solar cell using same, and method for producing photoelectric conversion film
US12063799B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12063799-B2 |
| Application number | US-202117525856-A |
| Country | US |
| Kind code | B2 |
| Filing date | Nov 12, 2021 |
| Priority date | May 29, 2019 |
| Publication date | Aug 13, 2024 |
| Grant date | Aug 13, 2024 |
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- Title
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Abstract
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The present disclosure provides a photoelectric conversion film having a high light absorption ability and a long carrier life. A photoelectric conversion film of the present disclosure includes a perovskite compound including a monovalent formamidinium cation, a Pb cation and an iodide ion. The film thickness of the photoelectric conversion film is greater than or equal to 1 μm. In the photoelectric conversion film, the ratio of root mean square roughness Rq to the film thickness is less than or equal to 0.13.
First claim
Opening claim text (preview).
What is claimed is: 1. A photoelectric conversion film comprising: a perovskite compound including a monovalent formamidinium cation, a Pb cation and an iodide ion, the photoelectric conversion film having a film thickness of greater than or equal to 2.05 μm, the ratio of root mean square roughness Rq to the film thickness being less than or equal to 0.13 and greater than or equal to 0.07. 2. The photoelectric conversion film according to claim 1 , wherein the film thickness is less than or equal to 5.2 μm. 3. The photoelectric conversion film according to claim 1 , wherein the ratio of root mean square roughness Rq to the film thickness is less than or equal to 0.1. 4. A solar cell comprising: a first electrode; a second electrode; and a photoelectric conversion layer disposed between the first electrode and the second electrode, wherein at least one electrode selected from the group consisting of the first electrode and the second electrode has translucency, and the photoelectric conversion layer is the photoelectric conversion film described in claim 1 . 5. The solar cell according to claim 4 , further comprising an electron transport layer disposed between the first electrode and the photoelectric conversion layer. 6. The solar cell according to claim 4 , further comprising a hole transport layer disposed between the second electrode and the photoelectric conversion layer. 7. A method for producing a photoelectric conversion film, comprising: (A) bringing a first solution including elements for constituting a first precursor perovskite compound into contact with a substrate, and heating the substrate to form a seed layer including the first precursor perovskite compound; and (B) heating the substrate and a second solution, and bringing the surface of the second solution into contact with the surface of the seed layer on the substrate to precipitate a second perovskite compound, thereby producing the photoelectric conversion film of claim 1 .
Assignees
Inventors
Classifications
Organic perovskites; Hybrid organic-inorganic perovskites [HOIP], e.g. CH3NH3PbI3 · CPC title
Thermal treatment, e.g. annealing in the presence of a solvent vapour · CPC title
- H10K30/80Primary
Constructional details · CPC title
- H10K71/191Primary
characterised by provisions for the orientation or alignment of the layer to be deposited · CPC title
characterised by the solvent used · CPC title
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Frequently asked questions
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- What does patent US12063799B2 cover?
- The present disclosure provides a photoelectric conversion film having a high light absorption ability and a long carrier life. A photoelectric conversion film of the present disclosure includes a perovskite compound including a monovalent formamidinium cation, a Pb cation and an iodide ion. The film thickness of the photoelectric conversion film is greater than or equal to 1 μm. In the photoel…
- Who is the assignee on this patent?
- Panasonic Ip Man Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification H10K30/80. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Aug 13 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 4 related publications on this page (citations in our corpus or others sharing the same primary CPC).