Methods for producing light-emitting body containing silicon fine particles and light-emitting silicon fine particles
US9085731B2 · kind B2 · utility
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3References
10Claims
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Key dates
| Filing date | Mar 11, 2011 |
| Grant date | Jul 21, 2015 |
| Priority date | — |
| Expiry date | Jul 17, 2031 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K11/025
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The present invention is a method for producing a light-emitting body containing silicon fine particles that emit visible light, comprising: a baking step of baking a mixture containing a silicon source and a carbon source in an inert atmosphere; a rapid cooling step of rapidly cooling a gas generated by baking the mixture to obtain a composite powder; and a removing step of removing a portion of the composite powder, wherein in the removing step, a portion of silicon monoxide and a portion of silicon dioxide are removed from the composite powder containing silicon fine particles, silicon monoxide, and silicon dioxide.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.