| 碳酸盐共沉淀法合成Lu2O3∶Er3+纳米粉体及性能表征 |
| Carbonate Co-precipitation Synthesis of Lu2O3∶Er3+ Nano-powders and Its Property Characterization |
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| 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。 |
| 关键词: Er3+∶Lu2O3 碳酸盐 共沉淀法 纳米粉体 上转换 |
| 基金项目: |
| Abstract: Er3+-doped Lu2O3 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∶Er3+ 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∶Er3+ nano-powders under excitation of 980 nm laser diode (LD) are also discussed. |
| Keywords: Lu2O3∶Er3+ carbonate co-precipitation process nano-powder up-conversion |
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| 王鹏贺,王能利,张希艳.碳酸盐共沉淀法合成Lu2O3∶Er3+纳米粉体及性能表征[J].无机化学学报,2012,28(11):2335-2340. |
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