Title:
FLUOROPHORE AND APPLICATION THEREFOR
Document Type and Number:
WIPO Patent Application WO/2016/098830
Kind Code:
A1
Abstract:
The present invention relates to a fluorophore that emits a red color, a light-emitting element using the fluorophore, and a light-emitting device that uses the light-emitting element. A fluorophore represented by the general formula Cax+yEuySiAlN3, the fluorophore containing Eu as an activating element and having a portion of the Ca element substituted by Eu, wherein x + y is 1-1.1 inclusive, y is 0.004-0.012 inclusive, the lattice constant (a) of the fluorophore is 0.9747-0.9770 nm inclusive, the lattice constant (c) of the fluorophore is 0.5050-0.5055 nm inclusive, the Ca content is 27.8-28.8 mass%, the solid-solution oxygen content is 0.3-1.2 mass% inclusive, and the Eu content is 0.4-1.2 mass% inclusive.
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Inventors:
INOUE SAORI (JP)
NOMIYAMA TOMOHIRO (JP)
NOMIYAMA TOMOHIRO (JP)
Application Number:
PCT/JP2015/085274
Publication Date:
June 23, 2016
Filing Date:
December 16, 2015
Export Citation:
Assignee:
DENKA COMPANY LTD (JP)
International Classes:
C09K11/64; H01L33/50
Domestic Patent References:
| WO2013111411A1 | 2013-08-01 |
Foreign References:
| JP2006008721A | 2006-01-12 | |||
| JP2006016413A | 2006-01-19 | |||
| JP2006008948A | 2006-01-12 | |||
| JP2006063323A | 2006-03-09 | |||
| JP2006008862A | 2006-01-12 |
Other References:
"An analysis of crystal structure of Ca- deficient oxonitridoaluminosilicate, Ca0.88Al0.91Si1.09N2.8500.15", JOURNAL OF THE CERAMIC SOCIETY OF JAPAN, vol. 117, no. 1, 2009, pages 94 - 98
Attorney, Agent or Firm:
AXIS Patent International (JP)
Axis international patent business corporation (JP)
Axis international patent business corporation (JP)
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