发明授权
- 专利标题： Oxygen substituted barium thioaluminate phosphor materials
- 专利标题（中）： 氧替代硫代铝酸钠磷光体材料
-
申请号： US11432453申请日： 2006-05-11
-
公开(公告)号： US07597969B2公开(公告)日： 2009-10-06
- 发明人: James Alexander Robert Stiles , John Wesley Moore , Vincent Joseph Alfred Pugliese , Hiroki Hamada , Isao Yoshida
- 申请人： James Alexander Robert Stiles , John Wesley Moore , Vincent Joseph Alfred Pugliese , Hiroki Hamada , Isao Yoshida
- 申请人地址： CA Fort Saskatchewan, Alberta
- 专利权人： Ifire IP Corporation
- 当前专利权人： Ifire IP Corporation
- 当前专利权人地址： CA Fort Saskatchewan, Alberta
- 代理机构： Fay Sharpe LLP
- 主分类号： H01L51/54
- IPC分类号： H01L51/54 ; C09K11/77
摘要：
A thin film phosphor for an electroluminescent device, the phosphor being selected from the group consisting of thioaluminates, thiogallates and thioindates having at least one cation selected from elements of Groups IIA and IIB of the Periodic Table of Elements. The phosphor being activated by a rare earth metal and containing oxygen as a partial substitute for a portion of the sulphur in the crystal lattice of the thiogallate, thioindate or thioaluminate. The phosphor is a single phase homogeneous compound and provides improved luminance stability. An electroluminescent device comprising the thin film phosphor is also described and methods of making the phosphor of the invention.