Blue light emitting thiogallate phosphor
US5834053A · kind A · utility
20Cited by
1References
6Claims
0Family size
Assignee
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Key dates
| Filing date | Mar 10, 1997 |
| Grant date | Nov 10, 1998 |
| Priority date | — |
| Expiry date | Mar 10, 2017 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K11/7717
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A crystalline blue emitting thiogallate phosphor of the formula RGa.sub.2 S.sub.4 :Ce.sub.x where R is selected from the group consisting of calcium, strontium, barium and zinc, and x is from about 1 to 10 atomic percent, the phosphor characterized as having a crystalline microstructure on the size order of from about 100 .ANG. to about 10,000 .ANG. is provided together with a process of preparing a crystalline blue emitting thiogallate phosphor by depositing on a substrate by CVD and resultant thin film electroluminescent devices including a layer of such deposited phosphor on an ordinary glass substrate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.