Luminophores and core-shell luminophore precursors
US8663499B2 · kind B2 · utility
1Cited by
6References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 19, 2007 |
| Grant date | Mar 4, 2014 |
| Priority date | — |
| Expiry date | Oct 6, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J61/44
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A novel type of green luminophore containing mixed rare-earth phosphates is produced from precursor particles having a mean diameter ranging from 1.5 to 15 microns; such particles have an inorganic core and a shell of a mixed lanthanum and/or cerium phosphate, optionally doped with terbium, evenly covering the inorganic core with a thickness greater than or equal to 300 nm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.