中山大学学报（自然科学版）2011，Vol.50Issue(2)：62-65,69,5.
白光LED用高亮度橙色高温相Ca3SiO4Cl2:Eu2+荧光粉
An Intense Orange High-temperature Phase Ca3SiO4Cl2: Eu2+ Phosphor for White LEDs
摘要
Abstract
An intense orange high-temperature phase Ca3SiO4Cl2: Eu2+ phosphor was synthesized by high-temperature solid-state reactions and investigated by photoluminescence excitation, emission spectroscopies and lifetime. The excitation and emission spectra showed that the phosphor could be efficiently excited by the incident light of 300 ～ 450 nm, well matched with the emission band of 395 nm-emitting InGaN chip, and emitted an intense orange light. The fluorescence lifetimes values of Eu2 + ion were determined to be 1.53 μs and 7.29 μs, respectively. By combining the phosphor with a 395 nm-emitting InGaN chip, an intense orange LED was fabricated. Under 20 mA forward-bias current, its CIE chromaticity coordinates were (0.533, 0.446). The result showed that high-temperature phase Ca3SiO4Cl2:Eu2+ was a promising orange phosphor for n-UV InGaN-based white LED.关键词
白光LED/碱土卤硅酸盐/稀土分类
数理科学引用本文复制引用
丁唯嘉,林委青,张梅,王静,苏锵..白光LED用高亮度橙色高温相Ca3SiO4Cl2:Eu2+荧光粉[J].中山大学学报（自然科学版）,2011,50(2):62-65,69,5.基金项目
国家自然科学基金面上资助项目(20501023) （20501023）
广东高校优秀青年创新人才培养计划(育苗工程)资助项目(LYM09031) （育苗工程）
华南农业大学211工程重点学科建设资助项目(2009B010100001) （2009B010100001）
华南农业大学校长科学基金资助项目(2007K031) （2007K031）
