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Title:
β-FORM SIALON FLUORESCENT SUBSTANCE AND LIGHT-EMITTING DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/033646
Kind Code:
A1
Abstract:
A β-form Sialon fluorescent substance containing europium as a solute and satisfying P8/P80≤0.9, where P8 [at%] is the content of aluminum element at a depth of 8 nm from a surface of the fluorescent substance and P80 [at%] is the content of aluminum element at a depth of 80 nm from the surface of the fluorescent substance, the contents being obtained by X-ray photoelectron spectroscopy; and a light-emitting device including the β-form Sialon fluorescent substance.

Inventors:
NOMIYAMA TOMOHIRO (JP)
KOBAYASHI MANABU (JP)
MIYAZAKI MASARU (JP)
OKUZONO TATSUYA (JP)
Application Number:
PCT/JP2020/030893
Publication Date:
February 25, 2021
Filing Date:
August 14, 2020
Export Citation:
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Assignee:
DENKA COMPANY LTD (JP)
International Classes:
G01N23/2273; C09K11/64; H01L33/50
Domestic Patent References:
WO2014030637A12014-02-27
WO2011058919A12011-05-19
Foreign References:
JP2018002870A2018-01-11
JP2017110206A2017-06-22
JP2017036430A2017-02-16
JP6572373B12019-09-11
JP2019199531A2019-11-21
JP2013173868A2013-09-05
Attorney, Agent or Firm:
HAYAMI Shinji (JP)
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