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Electroluminescent material and the light emitting device using the same 发明申请

2023-01-22 3630 179K 0

专利信息

申请日期 2025-07-08 申请号 JP2005515212
公开(公告)号 JPWO2005042669A1 公开(公告)日 2007-11-29
公开国别 JP 申请人省市代码 全国
申请人 JAPAN SCIENCE TECH CORP; NAT INST OF ADV IND TECHNOL; JAPAN SCIENCE TECH AGENCY
简介 The present invention provides electroluminescent materials that emit very bright light with little energy consumption, little loss of energy converted into heat, etc., and suffers from little deterioration due to long-term use, in particular, inorganic electroluminescent materials that emit blue to green light having a wavelength shorter than yellow. Specifically, the present invention relates to the following three types of electroluminescent material : (1) An electroluminescent material including an oxide having a perovskite-type crystal structure represented by General Formula RMO 3 , wherein R is at least one rare-earth element, and M is at least one member selected from the group consisting of Al, Mn, and Cr; (2) an electroluminescent material including an oxide having a perovskite-type crystal structure represented by General Formula R 2 CuO 4 , wherein R is at least one rare-earth element; and (3) an electroluminescent material including an oxide having a perovskite-type crystal structure represented by General Formula RZ 2 Cu 3 O 6 , wherein R is at least one rare-earth element, and Z is at least one alkali-earth metal.


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