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RED-TYPE LIGHT EMITTING PHOSPHOR, METHOD FOR PRODUCING SAME AND LIGHT EMITTING DEVICE USING RED-TYP 发明申请

2023-05-11 4130 293K 0

专利信息

申请日期 2025-09-12 申请号 EP11771863
公开(公告)号 EP2562230A1 公开(公告)日 2013-02-27
公开国别 EP 申请人省市代码 全国
申请人 Sharp Kabushiki Kaisha
简介 The present invention relates to a divalent europium-activated nitride red light emitting phosphor substantially represented by a general formula : (MI1-xEux)MIlSiN3 (1) (in the formula (1), MI is an alkaline-earth metal element and represents at least one element selected from the group consisting of Mg, Ca, Sr, and Ba; MII is a trivalent metal element and represents at least one element selected from the group consisting of Al, Ga, In, Sc, Y, La, Gd, and Lu; and x is the number satisfying 0.001 ≤x ≤ 0.10), in which the electrical conductivity of a supernatant liquid of the solution containing 10 parts by mass of pure water with respect to 1 part by mass of the red light emitting phosphor is not more than 10 mS/cm.


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