Single-source precursor for semiconductor nanocrystals
US8721926B2 · kind B2 · utility
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Key dates
| Filing date | Sep 14, 2012 |
| Grant date | May 13, 2014 |
| Priority date | — |
| Expiry date | Oct 26, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2991
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A single-source solid precursor matrix for semiconductor nanocrystals includes 45-55% by weight of zinc, 28-35% by weight of oxygen, 0.70-1.2% by weight of carbon, 1.5-2.5% by weight of hydrogen, 4-6% by weight of nitrogen, 5-7% by weight of sulphur and 1-5% by weight of dopant ions with respect to the weight of zinc atoms. Doped semiconductor nanocrystals for multicolor displays and bio markers include 60-65% by weight of zinc, 30-32% by weight of sulphur, 1.2-1.3% by weight of copper and 1.2-1.3% by weight of dopant ions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.