Title:
蛍光体
Document Type and Number:
Japanese Patent JP6693942
Kind Code:
B2
Abstract:
The purpose of the present invention is to provide a novel phosphor, which is excited by a wide band of visible light, capable of emitting near-infrared light of high intensity. Proposed is a phosphor comprising a crystal phase represented by a formula (1) : MCuSi 2 O 6 (where M comprises one or more of Ba, Sr and Ca), and a crystal phase represented by a formula (2): MCuSi 4 O 10 (where M comprises one or more of Ba, Sr and Ca), wherein a ratio ² of a diffraction peak intensity of MCuSi 4 O 10 with respect to a diffraction peak intensity of MCuSi 2 O 6 in an X-ray diffraction (XRD) pattern obtained by powder XRD measurement using CuK± rays is 0 <² ¤ 0.50.
Inventors:
Junichi Ito
Yukihiro Ozawa
Takayoshi Mori
Yukihiro Ozawa
Takayoshi Mori
Application Number:
JP2017503392A
Publication Date:
May 13, 2020
Filing Date:
February 10, 2016
Export Citation:
Assignee:
Mitsui Mining & Smelting Co., Ltd.
International Classes:
C09K11/59; C09D7/40; C09D201/00
Domestic Patent References:
| JP9504771A |
Foreign References:
| CN104098103A | ||||
| CN103601202A | ||||
| WO2012008325A1 |
Other References:
G. GIESTER. ET AL.,Wesselsite,SrCu[Si4010],a further new gillespite-group mineral from the Kalahari Manganese Field, South Africa,MINERALOGICAL MAGAZINE,1996年,vol. 60,pages 795 - 798
E.Kendrick.,et al,Structure and colour properties in the Egyptian Blue Family,M1-xM'xCuSi4O10,as a function of M, M' w,DYES AND PIGMENTS,2005年12月 5日,Vol.73,pp 13-18
LI Ya-jie.,et al,Temperature-dependent near-infrared emission of highly concentrated Cu2+ in CaCuSi4O10 phosphor,Journal of Materials Chemistry C,日本,2014年12月28日,Vol.2 No.48,pp 10395-10402,ISSN 2050-7526
E.Kendrick.,et al,Structure and colour properties in the Egyptian Blue Family,M1-xM'xCuSi4O10,as a function of M, M' w,DYES AND PIGMENTS,2005年12月 5日,Vol.73,pp 13-18
LI Ya-jie.,et al,Temperature-dependent near-infrared emission of highly concentrated Cu2+ in CaCuSi4O10 phosphor,Journal of Materials Chemistry C,日本,2014年12月28日,Vol.2 No.48,pp 10395-10402,ISSN 2050-7526
Attorney, Agent or Firm:
Takeuchi/Ichizawa International Patent Office