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Luminescent substance particle having perovskite-type structure
US10344210B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10344210-B2 |
| Application number | US-201715659929-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jul 26, 2017 |
| Priority date | Jan 28, 2015 |
| Publication date | Jul 9, 2019 |
| Grant date | Jul 9, 2019 |
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Abstract
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A luminescent substance particle including BaSnO3 having a perovskite-type structure, wherein the luminescent substance particle contains one of 0.07% by mass or less of Fe (iron), 0.005% by mass or less of Cr (chromium) and 0.02% by mass or less of Ni (nickel). A wavelength conversion film including the luminescent substance particle for converting a light in an ultraviolet region to a light in an infrared region. A wavelength conversion device including a substrate and the wavelength conversion film formed on the substrate.
First claim
Opening claim text (preview).
What is claimed is: 1. A luminescent substance particle comprising BaSnO 3 having a perovskite-type structure, wherein the luminescent substance particle contains Fe, a content of Fe being 0.07% by mass or less, and wherein an internal quantum efficiency of light emission is 10% or more under excitation spectrum of ultraviolet light. 2. The luminescent substance particle according to claim 1 , having a particle diameter of 100 nm or less. 3. A luminescent substance particle comprising BaSnO 3 having a perovskite-type structure, wherein the luminescent substance particle contains Cr, a content of Cr being 0.005% by mass or less, and wherein an internal quantum efficiency of light emission is 10% or more under excitation spectrum of ultraviolet light. 4. The luminescent substance particle according to claim 3 , having a particle diameter of 100 nm or less. 5. A luminescent substance particle comprising BaSnO 3 having a perovskite-type structure, wherein the luminescent substance particle contains Ni, a content of Ni being 0.02% by mass or less, and wherein an internal quantum efficiency of light emission is 10% or more under excitation spectrum of ultraviolet light. 6. The luminescent substance particle according to claim 5 , having a particle diameter of 100 nm or less. 7. A wavelength conversion film for converting a light in an ultraviolet region to a light in an infrared region, comprising the luminescent substance particle according to claim 1 . 8. A wavelength conversion film for converting a light in an ultraviolet region to a light in an infrared region, comprising the luminescent substance particle according to claim 3 . 9. A wavelength conversion film for converting a light in an ultraviolet region to a light in an infrared region, comprising the luminescent substance particle according to claim 5 . 10. A wavelength conversion device comprising a substrate and the wavelength conversion film according to claim 7 formed on the substrate. 11. A wavelength conversion device comprising a substrate and the wavelength conversion film according to claim 8 formed on the substrate. 12. A wavelength conversion device comprising a substrate and the wavelength conversion film according to claim 9 formed on the substrate. 13. The wavelength conversion device according to claim 10 , wherein the substrate is a flexible resin sheet or a composite sheet containing a resin and an inorganic material. 14. The wavelength conversion device according to claim 11 , wherein the substrate is a flexible resin sheet or a composite sheet containing a resin and an inorganic material. 15. The wavelength conversion device according to claim 12 , wherein the substrate is a flexible resin sheet or a composite sheet containing a resin and an inorganic material. 16. The luminescent substance particle of claim 1 , wherein the content of Fe is 0.00161% by mass or more. 17. The luminescent substance particle of claim 3 , wherein the content of Cr is 0.00012% by mass or more. 18. The luminescent substance particle of claim 5 , wherein the content of Ni is 0.00022% by mass or more.
Assignees
Inventors
Classifications
- C09K11/663Primary
with alkaline earth metals · CPC title
with chromium · CPC title
perovskite-type (ABO3) · CPC title
PV systems with concentrators · CPC title
containing germanium, tin or lead · CPC title
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- What does patent US10344210B2 cover?
- A luminescent substance particle including BaSnO3 having a perovskite-type structure, wherein the luminescent substance particle contains one of 0.07% by mass or less of Fe (iron), 0.005% by mass or less of Cr (chromium) and 0.02% by mass or less of Ni (nickel). A wavelength conversion film including the luminescent substance particle for converting a light in an ultraviolet region to a light i…
- Who is the assignee on this patent?
- Ngk Insulators Ltd
- What technology area does this patent fall under?
- Primary CPC classification C09K11/663. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Jul 09 2019 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).