Title:
PHOSPHOR AND METHOD FOR PRODUCING SAME
Document Type and Number:
WIPO Patent Application WO/2013/157524
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a chemically stable inorganic phosphor by which excitation with near-infrared rays to blue light causes a conventional rare earth-activated nitride-based phosphor to emit long-wavelength orange- or red-colored light. The purpose of the present invention is also to provide a simple method for producing the phosphor obviating the need for production under high-temperature and high-pressure conditions. This phosphor is characterized by being represented by general formula (I): AaBbCcDdEe:My (I) (in the formula, M is at least one species selected from the rare earth element group consisting of Ce, Pr, Nd, Sm, Eu, Tb, Dy, Ho, Er, Tm, and Yb; A is at least one species selected from divalent metal elements other than the rare earth element group; B is at least one species selected from trivalent metal elements other than the rare earth element group; C is at least one species selected from Si, and tetravalent metal elements other than the rare earth element group; D is N; and E is O), and in that a, b, c, d, e, and y satisfy formulae (1) to (6). 0.17 ≤ a ≤ 1.3 (1) 2.3 ≤ b ≤ 4.1 (2) 0.9 ≤ c ≤ 2 (3) 2.7 ≤ d ≤ 4 (4) 0.6 ≤ e ≤ 1.8 (5) 0.3 ≤ y ≤ 0.8 (6)
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Inventors:
KANAI KAZUAKI (JP)
MATSUMOTO KAZUAKI (JP)
MATSUMOTO KAZUAKI (JP)
Application Number:
PCT/JP2013/061214
Publication Date:
October 24, 2013
Filing Date:
April 15, 2013
Export Citation:
Assignee:
KANEKA CORP (JP)
International Classes:
C09K11/64; C09K11/08; C09K11/62; H01L33/50
Foreign References:
| JP2006022286A | 2006-01-26 | |||
| JP2006008721A | 2006-01-12 | |||
| JP2005235934A | 2005-09-02 | |||
| JP2003321675A | 2003-11-14 | |||
| JP2004010786A | 2004-01-15 | |||
| JP2006052337A | 2006-02-23 |
Attorney, Agent or Firm:
YASUTOMI & Associates (JP)
Patent business corporation Yasutomi international patent firm (JP)
Patent business corporation Yasutomi international patent firm (JP)
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