Title:
蛍光体
Document Type and Number:
Japanese Patent JP4708507
Kind Code:
B2
Abstract:
An emitting phosphor is provided, which can be excited by a blue LED or a near-UV LED, emit visible light and increase internal quantum efficiency. An emitting phosphor is proposed, comprising an orthorhombic crystal system comprising Ga and S, wherein the orthorhombic crystal system has, in an XRD pattern using a Cu K± beam, a proportion of the diffraction intensity of the maximum peak appearing at diffraction angle 2¸ = 16.0 to 18.0° with respect to the diffraction intensity of the maximum peak appearing at diffraction angle 2¸ = 23.6 to 24.8°of 0.4 or greater.
Inventors:
Asuka Shinokura
Junichi Ito
Taizo Morinaka
Junichi Ito
Taizo Morinaka
Application Number:
JP2010538663A
Publication Date:
June 22, 2011
Filing Date:
June 02, 2010
Export Citation:
Assignee:
Mitsui Mining & Smelting Co., Ltd.
International Classes:
C09K11/62; H01L33/50
Domestic Patent References:
| JP2006524437A | ||||
| JP2007525552A | ||||
| JP53012787A | ||||
| JP52124486A |
Foreign References:
| WO2010029654A1 |
Other References:
A. KATO, S. IIDA, M. YAMAZAKI, E. YAMAGISHI, C. HIDAKA, T. TAKIZAWA,Optional gain due to the Eu transition in the alloy of Ca1-xEuxGa2S4,Journal of physics and chemistry of solids,2005年,vol.66,p.2076-2078
XU Jian, ZHANG Xin-min, ZHANG Jian-hui, GUO Chong-feng, SU Qiang,The Synthesis and Luminescent Properties of a Series of MGa2S4:Eu2+(M=Sr, Ca, Ba) and EuGa2S4 Phosphors,Zhongshan Daxue Xuebao, Ziran Kexueban(ACTA SCIENTIARUM NATURALIUM UNIVERSITATIS SUNYATSENI),2004年 5月,vol.43, No.3,p.49-51
XU Jian, ZHANG Jianhui, ZHANG Xinmin, GUO Chongfeng, SU Qiang,Luminescent Properties of Ga2S3:Eu2+ and SrGa2+xS4+y:Eu2+ Phosphors,Zhongguo Xitu xuebao (Journal of the Chinese rare earth society),2003年12月,vol.21, No.6,p.635-638
XU Jian, ZHANG Xin-min, ZHANG Jian-hui, GUO Chong-feng, SU Qiang,The Synthesis and Luminescent Properties of a Series of MGa2S4:Eu2+(M=Sr, Ca, Ba) and EuGa2S4 Phosphors,Zhongshan Daxue Xuebao, Ziran Kexueban(ACTA SCIENTIARUM NATURALIUM UNIVERSITATIS SUNYATSENI),2004年 5月,vol.43, No.3,p.49-51
XU Jian, ZHANG Jianhui, ZHANG Xinmin, GUO Chongfeng, SU Qiang,Luminescent Properties of Ga2S3:Eu2+ and SrGa2+xS4+y:Eu2+ Phosphors,Zhongguo Xitu xuebao (Journal of the Chinese rare earth society),2003年12月,vol.21, No.6,p.635-638
Attorney, Agent or Firm:
Takeuchi/Ichizawa International Patent Office