摘要
研究了Mg ,Sr和La掺杂对BaAl1 2 O1 9∶Mn晶体结构和发光性能的影响。晶体结构的研究结果表明 ,Sr和La取代了部分Ba的晶格位置 ,Mg和Mn取代了部分Al的晶格位置。Sr和La对Ba的取代使得BaAl1 2 O1 9∶Mn的晶胞体积减小 ,而Mg的掺杂使得BaAl1 2 O1 9∶Mn的晶胞体积增大。发光性能的测量结果表明 ,在一定浓度范围内 ,Sr,La和Mg的掺杂能够有效地提高BaAl1 2 O1 9∶Mn在真空紫外激发下的发光强度 ,同时这些掺杂对BaAl1 2 O1 9∶Mn的色坐标也产生一定的影响。
The effect of Mg, Sr and La doping on crystal structure and luminescence of the BaAl 12 O 19 ∶Mn phosphor was studied. The XRD results show that Mg substitutes part of the Al position, while Sr and La substitute part of Ba. The lattice parameters of BaAl 12 O 19 ∶Mn become smaller after the substitution of Sr and La, while the doping of Mg makes the lattice volume become larger. In the appropriate concentration range, the doping of Mg, Sr and La can increase the luminescent intensity of BaAl 12 O 19 ∶Mn. The doping of Mg, Sr and La can also change a little of the CIE coordinates of BaAl 12 O 19 ∶Mn.
出处
《中国稀土学报》
CAS
CSCD
北大核心
2001年第6期586-589,共4页
Journal of the Chinese Society of Rare Earths
基金
国家计委稀土专项 (计高技 [1999] 1788号文 )
国家人事部留学回国人员科研基金资助项目 (人发 [2 0 0 1] 6号文 )
