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Fluorescent substance containing rare earth metal, luminous composition comprising the same, proce 发明授权

2023-04-26 1170 770K 0

专利信息

申请日期 2025-06-27 申请号 US12178199
公开(公告)号 US8080173B2 公开(公告)日 2011-12-20
公开国别 US 申请人省市代码 全国
申请人 Takahiro Sato; Hiroki Iwanaga; Akio Amano; Shinji Murai
简介 The present invention provides a fluorescent substance excellent in emission intensity and in emission efficiency. The substance can be excited by light at a longer wavelength than ever. The present invention also provides a luminous composition comprising the fluorescent substance and a light-emitting element using the substance. The fluorescent substance comprises a rare earth metal and a phosphine oxide ligand which coordinates to said rare earth metal and said ligand containing at least one siloxane bond in its structure. The fluorescent substance can be produced from a reaction between a compound having a siloxane bond and a rare earth complex coordinated by a phosphine oxide ligand. The luminous composition comprises the fluorescent substance.


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