中文摘要：

激活 Eu2+ 的 reddish-orange-emitting Ca3Si2O7 黄磷与 NH4Cl 流动的增加被综合。当黄磷在一篇名字的作文被综合时(Ca0.99Eu0.01 ) 没有流动增加的 3Si2O7，为微红橘子的排放负责的一个 Ca3Si2O7 阶段被识别为绿排放与 a-Ca2SiO4 的一个中间的阶段共存。与 NH4Cl 流动的增加，当因为流动内容是 3 wt% ，纯阶段 Ca3Si2O7 被获得时， a-Ca2SiO4 被压制。通过改变流动的数量，样品的排放颜色能从绿色被调节到微红橘子，相应于到 Ca3Si2O7 的从 a-Ca2SiO4 的阶段转变。通过优化 Eu2+ 的做的集中，为微红橘子的排放的优化光致发光(PL ) 性质能被完成，它在射出二极管(PC-WLEDs ) 的变换黄磷的白光的应用使这种黄磷未来。

英文摘要：

Eu2＋ -activated reddish-orange-emitting Ca3Si2O7 phosphors were synthesized with the addition of NH4Cl flux.When the phosphors were synthesized in a nominal composition of （Ca0.99Eu0.01）3Si2O7 without flux addition,a Ca3Si2O7 phase responsible for reddish-orange emission was identified to coexist with an intermediate phase of a-Ca2SiO4 for green emission.With the addition of NH4Cl flux,a-Ca2SiO4 was suppressed while the pure phase Ca3Si2O7 was obtained as the flux content was 3 wt%.Through varying the amount of flux,the emission color of samples can be tuned from green to reddish-orange,corresponding to the phase transformation from a-Ca2SiO4 to Ca3Si2O7.Through optimizing the doping concentration of Eu2＋ ,the optimized photoluminescence （PL） properties for reddish-orange emission can be achieved,which makes this kind of phosphor prospective in the applications of the phosphor-converted white light emitting diodes （PC-WLEDs）.