Lighting device having highly luminescent quantum dots
US9425365B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 20, 2012 |
| Grant date | Aug 23, 2016 |
| Priority date | — |
| Expiry date | Aug 20, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10H20/8511
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Lighting devices having highly luminescent quantum dots are described. In an example, a lighting apparatus includes a housing structure or a substrate. The lighting apparatus also includes a light emitting diode supported within the housing structure or disposed on the substrate, respectively. The lighting apparatus also includes a light conversion layer disposed above the light emitting diode. The light conversion layer includes a plurality of quantum dots. Each quantum dot includes an anisotropic nanocrystalline core having a first semiconductor material and having an aspect ratio between, but not including, 1.0 and 2.0. Each quantum dot also includes a nanocrystalline shell having a second, different, semiconductor material at least partially surrounding the anisotropic nanocrystalline core.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.