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Title:
OXYNITRIDE PHOSPHOR AND LIGHT-EMITTING DEVICE
Document Type and Number:
WIPO Patent Application WO/2005/090514
Kind Code:
A1
Abstract:
Disclosed are an oxynitride phosphor and a light-emitting device which are improved in luminous efficiency and emission intensity. A SiAlON phosphor (7) is composed of an oxynitride phosphor represented by the general formula of CaX(Si,Al)12(O,N)16: Eu2+y wherein x is not less than 0.75 and not more than 1.0 and y is not less than 0.04 and not more than 0.25. The main phase of the oxynitride phosphor has an alpha-sialon crystal structure.

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Inventors:
SAKUMA KEN
HIROSAKI NAOTO
Application Number:
PCT/JP2005/004972
Publication Date:
September 29, 2005
Filing Date:
March 18, 2005
Export Citation:
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Assignee:
FUJIKURA LTD (JP)
NAT INST FOR MATERIALS SCIENCE
SAKUMA KEN
HIROSAKI NAOTO
International Classes:
C09K11/08; C09K11/64; C09K11/77; H01J1/62; H01L33/32; H01L33/50; H01L33/56; H01L33/60; H01L33/62; H05B33/14; (IPC1-7): C09K11/64; H01L33/00
Foreign References:
JP2004067837A2004-03-04
JP2003124527A2003-04-25
JP2003336059A2003-11-28
JP2002363554A2002-12-18
Other References:
See also references of EP 1736525A4
Attorney, Agent or Firm:
Miyoshi, Hidekazu (2-8 Toranomon 1-chome, Minato-k, Tokyo 01, JP)
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