Compound semiconductor and manufacturing method thereof
US-2017217783-A1 · Aug 3, 2017 · US
Compound semiconductor and use thereof
US11724944B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11724944-B2 |
| Application number | US-201716476500-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 20, 2017 |
| Priority date | Mar 15, 2017 |
| Publication date | Aug 15, 2023 |
| Grant date | Aug 15, 2023 |
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- Title
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Abstract
Official abstract text for this publication.
A compound semiconductor which has an improved thermoelectric performance index together with excellent electrical conductivity, and thus may be utilized for various purposes such as a thermoelectric conversion material of thermoelectric conversion devices, solar cells, and the like, and to a method for preparing the same.
First claim
Opening claim text (preview).
The invention claimed is: 1. A compound semiconductor represented by the following Chemical Formula 1: S x CO 4 Sb 12-y-z Q y Sn z [Chemical Formula 1] wherein in Chemical Formula 1, Q comprises at least one among O, Se, and Te, and x, y, and z are denote a molar ratio, wherein 0<x≤1, 0<y<12, 0<z<12, 0<y+z<12, and y≥3x, wherein the compound semiconductor is one in which S is filled as a filler in an n-type Co—Sb skutterudite which is simultaneously substituted with a chalcogen element Q and Sn at Sb sites. 2. The compound semiconductor of claim 1 , wherein in Chemical Formula 1, y≥3x when 0<y+z<1. 3. The compound semiconductor of claim 1 , wherein in Chemical Formula 1, y=3x+z when 1≤y+z<12. 4. The compound semiconductor of claim 1 , wherein in Chemical Formula 1, x is in the range of 0.1≤x≤0.2. 5. The compound semiconductor of claim 1 , wherein in Chemical Formula 1, y and z are in the range of 0.6≤y≤0.8 and 0.05≤z≤0.2, respectively. 6. The compound semiconductor of claim 1 , wherein in Chemical Formula 1, Q is Te. 7. A method for preparing the compound semiconductor of claim 1 comprising: mixing S, Co, Sb, Q, and Sn in a content so as to satisfy a compound composition of the following Chemical Formula 1 to provide a mixture; and thermally treating the mixture: S x CO 4 Sb 12-y-z Q y Sn z [Chemical Formula 1] wherein in Chemical Formula 1, Q comprises at least one among O, Se, and Te, and x, y, and z denote a molar ratio, wherein 0<x≤1, 0<y<12, 0<z<12, 0<y+z<12, and y≥3x. 8. The method for preparing the compound semiconductor of claim 7 , wherein thermally treating the mixture is performed at a temperature of 400° C. to 800° C. 9. The method for preparing the compound semiconductor of claim 7 , further comprising a cooling step after thermally treating the mixture. 10. The method for preparing the compound semiconductor of claim 7 , further comprising a pressure-sintering step after thermally treating the mixture. 11. A thermoelectric conversion device comprising the compound semiconductor according to claim 1 . 12. A solar cell comprising the compound semiconductor according to claim 1 .
Assignees
Inventors
Classifications
- C01G51/82Primary
Compounds containing cobalt, with or without oxygen or hydrogen, and containing two or more other elements · CPC title
comprising only selenium or only tellurium · CPC title
Active materials · CPC title
- C01G51/006Primary
Chemistry & Metallurgy · mapped topic
Electricity · mapped topic
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Frequently asked questions
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- What does patent US11724944B2 cover?
- A compound semiconductor which has an improved thermoelectric performance index together with excellent electrical conductivity, and thus may be utilized for various purposes such as a thermoelectric conversion material of thermoelectric conversion devices, solar cells, and the like, and to a method for preparing the same.
- Who is the assignee on this patent?
- Lg Chemical Ltd
- What technology area does this patent fall under?
- Primary CPC classification C01G51/82. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Aug 15 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 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).