| 发明名称 | Green-emitting, garnet-based phosphors in general and backlighting applications | ||
| 摘要 | Disclosed herein are green-emitting, garnet-based phosphors having the formula (Lu1-a-b-cYaTbbAc)3 (Al1-dBd)5(O1-eCe)12: Ce,Eu, where A is selected from the group consisting of Mg, Sr, Ca, and Ba; B is selected from the group consisting of Ga and In; C is selected from the group consisting of F, Cl, and Br; and 0≦a≦1; 0≦b≦1; 0<c≦0.5; 0≦d≦1; and 0<e≦0.2. These phosphors are distinguished from anything in the art by nature of their inclusion of both an alkaline earth and a halogen. Their peak emission wavelength may lie between about 500 nm and 540 nm; in one embodiment, the phosphor (Lu,Y,A)3Al5(O,F,Cl)12: Eu2+ has an emission at 540 nm. The FWHM of the emission peak lies between 80 nm and 150 nm. The present green garnet phosphors may be combined with a red-emitting, nitride-based phosphor such as CaAlSiN3 to produce white light. | ||
| 申请公布号 | US9458378(B2) | 申请公布日期 | 2016.10.04 |
| 申请号 | US201514703726 | 申请日期 | 2015.05.04 |
| 申请人 | Intermatix Corporation | 发明人 | Wu Yusong;Tao Dejie;Cheng Shifan;Li Yi-Qun |
| 分类号 | C09K11/77;H01J1/63 | 主分类号 | C09K11/77 |
| 代理机构 | Pillsbury Winthrop Shaw Pittman LLP | 代理人 | Jaffer David H.;Pillsbury Winthrop Shaw Pittman LLP |
| 主权项 | 1. A cerium-activated, green-emitting lutetium aluminate phosphor comprising lutetium, cerium aluminum, oxygen, fluorine, and strontium, wherein said phosphor is configured to absorb excitation radiation having a wavelength ranging from about 380 nm to about 480 nm, and to emit light having a peak emission wavelength ranging from about 523.44 nm to about 534.64 nm, wherein said phosphor is characterized by CIE(x) coordinates ranging from 0.3405 to 0.3677 and CIE(y) coordinates ranging from 0.5718 to 0.5748. | ||
| 地址 | Fremont CA US | ||