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US 8,137,584 B2Granted
Luminescent composition, light source device, display device and process for preparing luminescent composition
AssigneeSony Corporation
InventorsTakashi Tamura, Tomokazu Hino, Tsuneo Kusunoki, Takahiro Igarashi
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Abstract
Disclosed is a luminescent composition containing a fluorescent body having Eu2+ as a luminescent center. The luminescent composition is obtained by a process including the steps of mixing a raw material of the fluorescent body with an organic compound having elements other than oxygen, and sintering the mixture to form the fluorescent body from the raw material.
Claims7
A method for preparing a luminescent composition having Eu2+ as a luminescent center, comprising the steps of:
- mixing a raw material A, a raw material D, a raw material E, and nitrogen to obtain ADEN3:Eu2+;
- mixing the ADEN3:Eu2+ with a compound consisting of carbon, nitrogen, and hydrogen;
- and
- sintering the resulting mixture of the ADEN3:Eu2+ and the compound to form a fluorescent body,
- wherein,
- the raw material A is selected from the group consisting of divalent metal elements,
- the raw material D is selected from the group consisting of tetravalent metal elements, and
- the raw material E is selected from the group consisting of trivalent metal elements.
5 more elements
Dependencies are inferred from the claim text.