Title:
HALOPHOSPHATE SALT FLUOROPHOR, AND LIGHT-EMITTING DEVICE
Document Type and Number:
Japanese Patent JP3875242
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a halophosphate salt fluorophor capable of improving emission efficiency in the visible light wavelength region, and to provide a light-emitting device using the fluorophor.
SOLUTION: The fluorophor is represented by the compositional formula: (M1-u-vEuuMnv)-mX2-n(PO4)6[ wherein, 0<u/v<100 1>(u+v); 0<m<10 0<n<10 1>10n M is at least one alkaline earth metal element selected from Mg, Ca, Sr and Ba; and X is one or more halogen elements including at least F, selected from F, Cl, Br and I ]. The light-emitting device is such as to be furnished with this fluorophor in a fluorophor region subject to incidence of light emitted from a light-emitting diode.
Inventors:
Kazuaki Otsuka
Masaaki Tamaya
Naomi Shinoda
Masaaki Tamaya
Naomi Shinoda
Application Number:
JP2004126824A
Publication Date:
January 31, 2007
Filing Date:
April 22, 2004
Export Citation:
Assignee:
Toshiba Corporation
International Classes:
C09K11/73; C09K11/08; H01L33/50; H01L33/62; (IPC1-7): C09K11/73; C09K11/08; H01L33/00
Domestic Patent References:
| JP5089840A | ||||
| JP2000509912A |
Foreign References:
| WO2004003106A1 | ||||
| WO2002086978A1 |
Attorney, Agent or Firm:
Saichi Suyama