摘要
分别以硫酸铵、聚丙烯酰胺和聚乙二醇为分散剂,采用碳酸盐共沉淀法合成了Er3+掺杂Lu2O3纳米粉体。应用FTIR、TG-DSC、XRD、SEM等测试方法研究了前驱沉淀物的热分解过程,以及不同类型分散剂对Lu2O3∶Er3+纳米粉体晶粒尺寸和分散性的影响。结果表明,以(NH4)2SO4和PAM为分散剂时,前驱体经1 000℃煅烧2 h所得粉体为粒径在50~70 nm之间的球形颗粒,粉体分散性较好。此外,探讨了在980 nm激光激发下Lu2O3∶Er3+粉体的上转换发光性能。
Abstract： Er^3＋-doped Lu203 nano-powders were synthesized by co-precipitation process with NH4HCO3 as precipitant and （NH4）2SO4, PAM, and PEG-400 as dispersants, respectively. The decomposition process of the precursor and effects of dispersants on the particle size distribution and dispersivity of obtained Lu2O3：Er^3＋ nano-powders were investigated by FTIR, TG-DSC, XRD and SEM methods. The results indicate that powders calcined at 1 000℃for 2 h with the doping of （NH4）2SO4 and PAM exhibit homogeneously spherical morphology and good dispersivity, and the particle size are between 50 and 70 nm. The up-conversion luminescence properties of the Lu2O3：Er^3＋ nano-powders under excitation of 980 nm laser diode （LD） are also discussed.
出处
《无机化学学报》
SCIE
CAS
CSCD
北大核心
2012年第11期2335-2340,共6页
Chinese Journal of Inorganic Chemistry
基金
国家自然科学基金(No.50472027)
吉林省科技发展计划项目(No.20090348)资助项目
