摘要
采用溶胶凝胶法制备了Y_4Zr_3O_(12)∶Eu^(3+)纳米荧光粉,分别采用XRD、TEM和荧光光谱仪对样品的结构、形貌和发光性能进行了表征,探讨了烧结温度和Eu^(3+)掺杂浓度对荧光粉发光性能的影响。结果表明,样品可以被394 nm和467 nm的激发光有效激发。样品的最佳烧结温度和Eu^(3+)离子的最佳掺杂摩尔分数分别为1 400℃和18%。浓度猝灭主要归因于电偶极-电偶极相互作用。
Y4Zr3O12∶Eu^3＋phosphors were synthesized by the sol-gel method. The crystal structure,morphology and luminescence properties were investigated by XRD,TEM and luminescence spectroscopy. The effects of calcination temperature and Eu^3＋concentration on the luminescence properties were also studied. These phosphors can be efficiently excited by 394 and 467 nm. The optimal calcination temperature and optimal Eu^3＋mole fraction are 1 400 ℃ and 18%,respectively. The mechanism of concentration quenching is attributed to the electric dipole-dipole interaction.
出处
《发光学报》
EI
CAS
CSCD
北大核心
2017年第11期1436-1442,共7页
Chinese Journal of Luminescence
基金
国家自然科学基金(51304086
11464017)资助项目~~
