Mg^(2+)对白光荧光粉(Ba,Ca)_2SiO_4∶Eu^(2+),Mn^(2+)光谱特性的影响  

The Influence of Mg^(2+) on the Luminescent Properties of (Ba,Ca)_2SiO_4∶Eu^(2+),Mn^(2+)

作　　者：刘杨[1] 马驰[1] 吴爱华[1] 李郎楷[1] 陈永杰[1] 刘婷婷[1] 

机构地区：[1]沈阳化工大学辽宁省稀土化学及应用重点实验室,辽宁沈阳110142

出　　处：《沈阳化工大学学报》2011年第4期289-293,共5页Journal of Shenyang University of Chemical Technology

基　　金：辽宁省科技厅科研计划项目(2006223004);辽宁省教育厅科研计划项目(LS2010120)

摘　　要：采用高温固相法制备(Ba,Ca)2SiO4∶Eu2+,Mn2+和不同Mg/Ca、Mg/Ba比例的(Ba,Ca)2-xMgxSiO4∶Eu2+,Mn2+白光荧光粉.研究改变Mg/Ca和Mg/Ba比例对荧光粉光谱特性的影响.所有荧光粉的发射光谱是由蓝绿光和红光组成的宽波带;激发光谱也是宽波带,在340～415nm之间具有较强吸收,适合于近紫外光InGaN芯片(350～410 nm)激发.随着Mg/Ca比例的改变,色温依次增加,可起到规律调节白光荧光粉色温的作用.The phosphors（Ba,Ca）2SiO4∶Eu2＋,Mn2＋ and（Ba,Ca）2-xMgxSiO4∶Eu2＋Eu2＋,Mn2＋ with different ratios of Mg/Ca,Mg/Ba were synthesized by high-temperature solid-state reaction method.The influence of varing the ratios of Mg/Ca and Mg/Ba on the luminescent properties of phosphors is investigated.The emission spectra of all samples are broad wave-band made up of blue-green and red light.The excitation spectra are also broad wave-band,and among 340 nm and 415 nm having a well absorbed intensity.Thus they are well fit for nUV-InGaN-chip（350~410 nm） excited.The color temperature of white phorphors is regularly tunable and increased with the ratios of Mg/Ca varing.

关 键 词：(Ba Ca)2SiO4∶Eu2+ Mn2+ 白光荧光粉 色温 

分 类 号：TQ422[化学工程] TQ630.6