发明申请
US20030224221A1 Yttrium substituted barium thioaluminate phosphor materials 失效
钇取代硫代铝酸钠磷光体材料

  • 专利标题: Yttrium substituted barium thioaluminate phosphor materials
  • 专利标题(中): 钇取代硫代铝酸钠磷光体材料
  • 申请号: US10397148
    申请日: 2003-03-26
  • 公开(公告)号: US20030224221A1
    公开(公告)日: 2003-12-04
  • 发明人: Dan Daeweon CheongAbdul M. Nakua
  • 主分类号: B32B009/04
  • IPC分类号: B32B009/04
Yttrium substituted barium thioaluminate phosphor materials
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 a Group IIIB element as a partial substitute for a portion of aluminum, gallium or indium of said thiogallate, thioindate and thioaluminate. The phosphor provides improved luminance. An electroluminescent device comprising the thin film phosphor on a substrate is also described.
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