Quantum dots with reduced saturation quenching
US10050184B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 8, 2015 |
| Grant date | Aug 14, 2018 |
| Priority date | — |
| Expiry date | Apr 8, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10H20/872
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The invention provides a lighting device comprising (a) a light converter comprising a light receiving face; and (b) a solid state light source configured to generate a light source light with a photon flux of at least 10 W/cm2 at the light receiving face, wherein the light converter is configured to convert at least part of the light source light into light converter light having a first frequency, wherein the light converter comprises a semiconductor quantum dot in an optical structure selected from a photonic crystal structure and a plasmonic structure, wherein the optical structure is configured to increase the photon density of states in the light converter resonant with the first frequency for reducing saturation quenching, and wherein the quantum dot has a quantum efficiency of at least 80%.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.