Compositions comprising a mixture of a BAM phosphor and at least one other hexaaluminate
US7736536B2 · kind B2 · utility
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2References
11Claims
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Key dates
| Filing date | Jul 10, 2007 |
| Grant date | Jun 15, 2010 |
| Priority date | — |
| Expiry date | Dec 19, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J2211/42
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Disclosed herein are phosphor compositions comprising a BAM phosphor BaMgAl10O17:Eu2+ and at least one other hexaaluminate that may also be europium activated. The BAM may be mixed with any number of different kinds of heaxaaluminates having a similar crystal structure. The aluminum ratio may also be adjusted to alter the defect structure or to produce a second phase. Addition of another hexaaluminate to BAM enhances emission intensity and resistance to degradation, which is beneficial to applications such as plasma display panels.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.