Magic size nanoclusters and methods of preparing same
US8617707B2 · kind B2 · utility
1Cited by
2References
20Claims
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Key dates
| Filing date | Mar 24, 2009 |
| Grant date | Dec 31, 2013 |
| Priority date | — |
| Expiry date | May 18, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2991
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Disclosed herein are magic size nanoclusters comprising lead and one or more chalcogens. The disclosed magic size nanoclusters have both spectrally narrow fluorescence and ultra-high quantum efficiencies. Further disclosed herein is a method for preparing PbS, PbSe, and PbTe magic size nanoclusters. The yield of magic size nanoclusters can be increased by using anion sources enriched for secondary phosphines. The use of enriched secondary phosphine anion sources also increases the yield of quantum nanostructures.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.