Metal silicate-silica-based polymorphous phosphors and lighting devices
US7276183B2 · kind B2 · utility
13Cited by
69References
41Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 10, 2005 |
| Grant date | Oct 2, 2007 |
| Priority date | — |
| Expiry date | Jun 24, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01L2224/48091
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Provided, among other things, is a phosphor according to the formula:[(BvSiO3)x(Mv2SiO3)y(Tv2(SiO3)3)z]m•(SiO2)n: Rε, X (I)wherein x, y and z are any value such that x+y+z=1; Bv is one or more divalent alkaline earth metals; Mv is one or more monovalent alkaline metals; Tv is one or more trivalent metal ions; Rε is one or more activators selected from Eu2+ and Mn2+; X is one or more halides; m is 1 or 0; and (i) n>3 if m=1 and provides an amount of silica effective to host useful luminescence or (ii) n=1 if m=0.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.