发明公开
- 专利标题： RARE EARTH DOPED LUMINESCENT MATERIAL
- 专利标题（中）： 稀土掺杂发光材料
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申请号： EP11738106.1申请日： 2011-07-11
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公开(公告)号： EP2619282A1公开(公告)日： 2013-07-31
- 发明人: SRIVASTAVA, Alok, Mani , ADDEPALLI, Swarnagowri , BALAZS, Lazslo , RAMACHANDRAN, Gopi, Chandran , KARKADA, Nagaveni , DEME, Istvan, Karoly , COMANZO, Holly, Ann , BEERS, William, Winder , TOTH, Katalin
- 申请人： General Electric Company
- 申请人地址： 1 River Road Schenectady, NY 12345 US
- 专利权人： General Electric Company
- 当前专利权人： General Electric Company
- 当前专利权人地址： 1 River Road Schenectady, NY 12345 US
- 代理机构： Szary, Anne Catherine
- 优先权： US886014 20100920
- 国际公布： WO2012039815 20120329
- 主分类号： C09K11/77
- IPC分类号： C09K11/77 ; H01J61/44 ; H01L33/00
摘要：
A luminescent material includes an aluminate phosphor of formula (I) A
1+x Mg
1+y Al
10+z O
17+x+y+i.5z : Eu
2+ , R
3+ , where 0 ≤x ≤ 0.4, 0 ≤ y ≤1 and 0 ≤ z ≤ 0.2. A is selected from Ca, Ba, and Sr and combinations thereof. The aluminate phosphor is doped with a rare earth ion (R
3+ ), which exists in stable multi- valence states in the luminescent material. R
3+ is selected from the group consisting of Sm
3+ , Yb
3+ , Tm
3+ , Ce
3+ , Tb
3+ , Pr
3+ and combinations thereof. Phosphors of formula (I) may be blended with other blue, yellow, orange, green, and red phosphors to yield white light phosphor blends. A lighting apparatus including such a luminescent material is also presented. The light apparatus includes a light source in addition to the luminescent material.
1+x Mg
1+y Al
10+z O
17+x+y+i.5z : Eu
2+ , R
3+ , where 0 ≤x ≤ 0.4, 0 ≤ y ≤1 and 0 ≤ z ≤ 0.2. A is selected from Ca, Ba, and Sr and combinations thereof. The aluminate phosphor is doped with a rare earth ion (R
3+ ), which exists in stable multi- valence states in the luminescent material. R
3+ is selected from the group consisting of Sm
3+ , Yb
3+ , Tm
3+ , Ce
3+ , Tb
3+ , Pr
3+ and combinations thereof. Phosphors of formula (I) may be blended with other blue, yellow, orange, green, and red phosphors to yield white light phosphor blends. A lighting apparatus including such a luminescent material is also presented. The light apparatus includes a light source in addition to the luminescent material.
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