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US 9,856,419 B2Granted
Stable phosphors for lighting applications
AssigneeUniversity of South Carolina
InventorsThomas Vogt, Sonali Mitra
Life of this patent
Estimating the term…
Abstract
Compositions are generally provided that include an oxyfluoride compound. In one embodiment, the oxyfluoride compound has the formula: NaCa2−xAxGeO4−zF1−yNz where A is Ba, Sr, or a mixture thereof; 0.01≦x≦0.1; 0≦y≦0.2; and 0≦z≦0.1. Methods of forming such compounds are also generally provided.
Claims15
A composition comprising an oxyfluoride compound having the formula:
- NaCa2−xAxGeO4−zF1−yNz
- where A is Ba, Sr, or a mixture thereof;
- 0.01≦x≦0.1;
- 0≦y≦0.2;
- and 0≦z≦0.1.
2 more elements
A composition comprising an oxyfluoride compound having the formula:
- NaCa2−xAxGeO4−zF1−yNz
- where A is Ba, Sr, or a mixture thereof;
- 0≦x≦0.1;
- 0≦y≦0.2;
- and 0≦z≦0.1;
- and an activator ion coupled with the compound.
3 more elements
A method of doping a compound having the formula:
- NaCa2GeO4−zF1−yNz where 0≦y≦0.2;
- and 0≦z≦0.1, the method comprising:
- introducing defects into the compound by substituting a portion of the Ca ions with ions of Ba, Sr, or a mixture thereof.
Dependencies are inferred from the claim text.