FLUORESCENT SUBSTANCE AND PRODUCTION METHOD THEREO

专利名称：FLUORESCENT SUBSTANCE AND

PRODUCTION METHOD THEREOF, ANDLIGHT EMITTING DEVICE

发明人：EMOTO, Hideyuki,NAGUMO, Toshiaki申请号：EP07832173.4申请日：20071120公开号：EP2093272B1公开日：20161102

摘要：Offered is a fluorescent substance consisting of Eu-activated β-sialon andcapable of enhancing the brightness of a light emitting device such as a white LED usingblue or ultraviolet light as a light source. The fluorescent substance has as its mainconstituent a β-sialon represented by the general formula Si6-zAlzOzN8-z andcontaining Eu, wherein the spin density is 2.0 × 1017/g or less as measured by electronspin resonance spectroscopy corresponding to an absorption of g = 2.00 ± 0.02 at 25 °C.In the above fluorescent substance, it is preferable that lattice constant a of the β-sialonbe 0.7608-0.7620 nm, the lattice constant c be 0.2908-0.2920 nm, and the Eu content be0.1-3 mass%.

申请人：DENKA COMPANY LIMITED

代理机构：Hartz, Nikolai

更多信息请下载全文后查看