Fluorescent material with semiconductor nanoparticles dispersed in glass matrix at high concentration and method for manufacturing such fluorescent material
US7824767B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 2, 2006 |
| Grant date | Nov 2, 2010 |
| Priority date | — |
| Expiry date | May 30, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/261
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The present invention provides a thin-film fluorescent material in which semiconductor nanoparticles in a stable condition maintain a high fluorescence quantum yield and can be held at a high concentration in a glass matrix. The present invention also provides optical devices using the thin-film fluorescent material, such as high-brightness displays and lighting systems. The present invention relates to a fluorescent material, in which semiconductor nanoparticles with a fluorescence quantum yield of 15% or more and a diameter of 2 to 5 nanometers are dispersed in a glass matrix at a concentration of 5×10−4 mol/l or more and a method for manufacturing the same.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.