Phosphors of rare earth and transition metal doped Ca1+xSr1-xGayIn2-ySzSe3-zF2; manufacturing and applications
US8974695B2 · kind B2 · utility
1Cited by
9References
13Claims
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Key dates
| Filing date | Nov 10, 2011 |
| Grant date | Mar 10, 2015 |
| Priority date | — |
| Expiry date | Nov 19, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B33/14
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Energy down conversion phosphors represented by the chemical formula Ca1+xSr1−xGayIn2−ySzSe3−zF2 where (0≦x≦1, 0≦y≦2, 0≦z≦3) doped with rare earth and/or transition metal elements is disclosed. Dopant impurities may be one or more species such as Eu, Ce, Mn, Ru, and/or mixtures thereof present as activators. The molar fractions x, y and z, the dopant species and the dopant concentration may be varied to tune the peak emission wavelength and/or the width of the emission peak.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.