发明申请
- 专利标题: Semiconductor superfine particle phosphor and light emitting device
- 专利标题(中): 半导体超微粒子荧光粉和发光器件
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申请号: US10518216申请日: 2003-05-06
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公开(公告)号: US20060097624A1公开(公告)日: 2006-05-11
- 发明人: Norio Murase , Masanori Ando
- 申请人: Norio Murase , Masanori Ando
- 优先权: JP2002-178449 20020619
- 国际申请: PCT/JP03/05648 WO 20030506
- 主分类号: C03C14/00
- IPC分类号: C03C14/00 ; B05D5/06 ; B32B9/04
摘要:
This invention provides a novel phosphor material that has better brightness than conventional phosphors using dispersed rare earth ions, and that possesses excellent light resistance, temporal stability, and the like, and a light-emitting device with high brightness comprising such phosphor material and an excitation ultraviolet light source corresponding to the properties thereof. A phosphor comprising a silicon-containing solid matrix and semiconductor superfine particles dispersed therein at a concentration of 5×10−4 to 1×10−2 mol/L, said semiconductor superfine particles having a fluorescence quantum yield of 3% or greater and a diameter of 1.5 to 5 nm, and a light-emitting device including said phosphor and a light source for excitation light with an intensity of 3 to 800 W/cm2.