Methods for preparation of nanocrystals using a weak electron transfer agent and mismatched shell precursors
US9937560B2 · kind B2 · utility
4Cited by
8References
18Claims
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Key dates
| Filing date | Oct 2, 2009 |
| Grant date | Apr 10, 2018 |
| Priority date | — |
| Expiry date | Jun 11, 2031 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01P2004/84
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Methods for preparing core/shell nanocrystals are provided, using mismatched shell precursors and an electron transfer agent to control the nucleation and growth phases of particle formation. One method includes forming a reaction mixture comprising a plurality of nanocrystals, a first shell precursor, a second shell precursor, a weak electron transfer agent, and optionally a solvent, wherein, the first shell precursor and the second shell precursor have different oxidation states; and heating the reaction mixture to a temperature high enough to induce formation of the shell on each of the plurality of nanocrystals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.