Invention Grant
- Patent Title: Fluoride fluorescent material, light emitting device, and method for producing fluoride fluorescent material
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Application No.: US16852388Application Date: 2020-04-17
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Publication No.: US11414596B2Publication Date: 2022-08-16
- Inventor: Tomokazu Yoshida
- Applicant: NICHIA CORPORATION
- Applicant Address: JP Anan
- Assignee: NICHIA CORPORATION
- Current Assignee: NICHIA CORPORATION
- Current Assignee Address: JP Anan
- Agency: Hunton Andrews Kurth LLP
- Priority: JPJP2019-080364 20190419,JPJP2019-097604 20190524
- Main IPC: C09K11/61
- IPC: C09K11/61 ; C09K11/77 ; C09K11/08 ; H01L33/50 ; C01B33/10
Abstract:
Provided is a fluoride fluorescent material having high luminance.
The fluoride fluorescent material has a composition containing Mn, A that is at least one element or ion selected from the group consisting of alkali metal elements and NH4+, at least one element M selected from the group consisting of Group-4 elements and Group-14 elements, and F; and contains spherical fluoride particles.
The fluoride fluorescent material has a composition containing Mn, A that is at least one element or ion selected from the group consisting of alkali metal elements and NH4+, at least one element M selected from the group consisting of Group-4 elements and Group-14 elements, and F; and contains spherical fluoride particles.
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