Method of producing silicon nanoparticles from stain-etched silicon powder
US7531155B2 · kind B2 · utility
14Cited by
14References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 2, 2007 |
| Grant date | May 12, 2009 |
| Priority date | — |
| Expiry date | Aug 2, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2993
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The present invention is for a porous silicon powder comprising silicon particles wherein the outermost layers of said particles are porous. The present invention is also directed to a method of making this porous silicon powder using a stain etch method. The present invention is also directed to a method of making silicon nanoparticles from the porous silicon powders using a process of ultrasonic agitation. The present invention also includes methods of processing these silicon nanoparticles for use in a variety of applications.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.