Core/shell type semiconductor nanoparticle and method for production thereof
US8197720B2 · kind B2 · utility
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7Claims
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Key dates
| Filing date | Jan 18, 2008 |
| Grant date | Jun 12, 2012 |
| Priority date | — |
| Expiry date | Mar 19, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2991
- WIPO fieldMicro-structural and nano-technology
- WIPO sectorChemistry
Abstract
Disclosed are core/shell type semiconductor nanoparticles exhibiting a sufficient emission intensity without causing a blink phenomenon (blinking). The core/shell-type semiconductor nanoparticles have an average particle size of from 2 to 50 nm and comprise an intermediate layer between a core portion and a shell portion, wherein band gap widths of bulk crystals which have the same compositions as those of the core portion, the intermediate portion and the shell portion, respectively, are in the order of:
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.