Invention Grant
- Patent Title: Fluoride-based phosphors for light emitting device
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Application No.: US16572515Application Date: 2019-09-16
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Publication No.: US11053438B2Publication Date: 2021-07-06
- Inventor: Kee-sun Sohn , Min-seuk Kim
- Applicant: INDUSTRY-ACADEMIA COOPERATION GROUP OF SEJONG UNIVERSITY
- Applicant Address: KR Seoul
- Assignee: INDUSTRY-ACADEMIA COOPERATION GROUP OF SEJONG UNIVERSITY
- Current Assignee: INDUSTRY-ACADEMIA COOPERATION GROUP OF SEJONG UNIVERSITY
- Current Assignee Address: KR Seoul
- Agency: Lex IP Meistere, PLLC
- Priority: KR10-2018-0114807 20180927
- Main IPC: H01L33/00
- IPC: H01L33/00 ; H01L31/0203 ; H01L21/00 ; C09K11/61 ; H01L33/50 ; H01L33/52
Abstract:
The invention relates to a red phosphor with a narrow full width at half maximum, having improved decay time and resolving afterglow phenomenon. The fluoride-based phosphor according to the invention is characterized in including a host having a composition of the following [Formula 1] including rubidium (Rb), cesium (Cs), silicon (Si) and fluorine (F) as constituent elements, and manganese (Mn) which is solid solution treated in the host as an activator: Rb3-xCsxSiF7 [Formula 1] (where, 0
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