Rare earth doped host materials
US6699406B2 · kind B2 · utility
27Cited by
19References
27Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 19, 1999 |
| Grant date | Mar 2, 2004 |
| Priority date | — |
| Expiry date | Mar 19, 2019 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K11/7773
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A rare earth element doped composition having a dopant concentration of up to about 60 mole percent of one or more rare earth elements selected from Tb, Dy, Ho, Er, Tm, Yb and Lu, wherein the composition is optically transparent to wavelengths at which excitation, fluorescence or luminescence of the rare earth elements occur. Method for making the compositions, composite materials having dispersed therein the compositions and luminescent devices containing optical or acoustical elements formed from the composite materials are also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.