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公开(公告)号：US20220186115A1
公开(公告)日：2022-06-16
申请号：US17442653
申请日：2020-03-19
Applicant: STELLA CHEMIFA CORPORATION
Inventor： Hiroaki TAKATORI , Shinya KUMAZAWA , Tetsuya ARAKAWA , Tetsuo NISHIDA
Abstract: A red phosphor that has optical characteristics and durability under high-temperature and high-humidity environments, and a method for producing the same. The red phosphor includes a Mn-activated complex fluoride represented by the following general formula (1) and bismuth: A2MF6:Mn4+ (1) wherein A represents at least one alkali metal element selected from the group consisting of lithium, sodium, potassium, rubidium and cesium, and M represents at least one tetravalent element selected from the group consisting of silicon, germanium, tin, titanium, zirconium and hafnium.
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