Title:
SURFACE-COATED FLUORESCENT BODY PARTICLES AND LUMINESCENT DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/241482
Kind Code:
A1
Abstract:
The surface-coated fluorescent body particles according to the present invention each comprise a particle containing a fluorescent body and a coating part that covers the surface of the particle, wherein the fluorescent body has a specific composition, the coating part constitutes at least a part of the outermost surface of the particle and contains AlF3, and, in an X-ray diffraction pattern of said surface-coated fluorescent body particle as measured using Cu-Kα radiation, IA and IB satisfy the relation IA/IB≤0.10, where IA represents the emission intensity of a maximum peak A in which 2θ falls within a range of 23-26°, and IB represents the emission intensity of a maximum peak B in which 2θ falls within a range of 36-39°.
Inventors:
AKABANE MASATO (JP)
EMOTO HIDEYUKI (JP)
EMOTO HIDEYUKI (JP)
Application Number:
PCT/JP2020/020273
Publication Date:
December 03, 2020
Filing Date:
May 22, 2020
Export Citation:
Assignee:
DENKA COMPANY LTD (JP)
International Classes:
C09K11/08; C09K11/64; H01L33/50
Foreign References:
| JP2018030938A | 2018-03-01 | |||
| JP2017155209A | 2017-09-07 | |||
| JP2015166423A | 2015-09-24 |
Attorney, Agent or Firm:
HAYAMI Shinji (JP)
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