Title:
β-TYPE SIALON PHOSPHOR AND LIGHT EMITTING DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/105456
Kind Code:
A1
Abstract:
A β-type sialon phosphor in which europium is solid dissolved, wherein, when the 50% area average diameter of the primary particles of the β-sialon phosphor is referred to as D50 and the 10% area average diameter of the primary particles of the β-sialon phosphor is referred to as D10, D50 is 7.0-20.0 μm inclusive and (D50-D10)/ D50 is 0.60 or less. The primary particles are defined as single crystal particles that are classified depending on crystal orientation by identifying the crystal orientation of each β-type sialon phosphor particle by the electron backscatter diffractometry. D50 and D10 are determined by image-analyzing the cross sectional area of the primary particles.
Inventors:
KOBAYASHI MANABU (JP)
KOBAYASHI KEITA (JP)
NOMIYAMA TOMOHIRO (JP)
WATANABE SHINTARO (JP)
KOBAYASHI KEITA (JP)
NOMIYAMA TOMOHIRO (JP)
WATANABE SHINTARO (JP)
Application Number:
PCT/JP2019/043689
Publication Date:
May 28, 2020
Filing Date:
November 07, 2019
Export Citation:
Assignee:
DENKA COMPANY LTD (JP)
International Classes:
C09K11/08; C09K11/61; C09K11/64; H01L33/50
Domestic Patent References:
| WO2012011444A1 | 2012-01-26 | |||
| WO2017122800A1 | 2017-07-20 | |||
| WO2012101899A1 | 2012-08-02 | |||
| WO2014115447A1 | 2014-07-31 |
Attorney, Agent or Firm:
HAYAMI Shinji (JP)
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