Title:
PHOSPHOR, MANUFACTURING METHOD THEREFOR, AND LIGHT-EMITTING DEVICE USING SAID PHOSPHOR
Document Type and Number:
WIPO Patent Application WO/2014/141851
Kind Code:
A1
Abstract:
[Problem] The provision of: a red-light-emitting phosphor that exhibits high luminous efficacy and emits light when excited by light having an emission peak in the blue region; and a method for manufacturing said phosphor. [Solution] A phosphor characterized by consisting of a compound having a composition that can be represented by general formula (A) and also characterized in that the FWHM of a diffraction line attributable to the (400) plane, obtained by X-ray powder diffraction analysis, is at most 0.2°. This phosphor can be manufactured by preparing a reaction solution consisting of an aqueous solution containing potassium permanganate and hydrogen fluoride, immersing a silicon source in said reaction solution, and reacting same for 20 to 80 minutes.
(A) Ka(Si1
−x−y, Tix, Mny)Fb
Inventors:
HIRAMATSU RYOSUKE (JP)
ALBESSARD KEIKO (JP)
MATSUDA NAOTOSHI (JP)
KATO MASAHIRO (JP)
ALBESSARD KEIKO (JP)
MATSUDA NAOTOSHI (JP)
KATO MASAHIRO (JP)
Application Number:
PCT/JP2014/054076
Publication Date:
September 18, 2014
Filing Date:
February 20, 2014
Export Citation:
Assignee:
TOSHIBA KK (JP)
TOSHIBA MATERIALS CO LTD (JP)
TOSHIBA MATERIALS CO LTD (JP)
International Classes:
C09K11/59; C09K11/08; C09K11/67; H01L33/50
Domestic Patent References:
| WO2009119486A1 | 2009-10-01 |
Foreign References:
| JP2011012091A | 2011-01-20 | |||
| JP2013189588A | 2013-09-26 | |||
| JP2013012711A | 2013-01-17 |
Attorney, Agent or Firm:
KATSUNUMA Hirohito et al. (JP)
Katsunuma Hirohito (JP)
Katsunuma Hirohito (JP)
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