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碳纳米管负载钇和铕氧化物纳米颗粒及其发光行为的研究
  • 期刊名称:中国稀土学报, 25(2):245-248, 2007
  • 时间:0
  • 分类:TB383[一般工业技术—材料科学与工程]
  • 作者机构:[1]清华大学机械工程系,教育部先进成形制造重点实验室,北京100084
  • 相关基金:国家自然科学基金资助项目(50672047);国家纳米科学中心资助项目 作者感谢清华大学化学系有机光电子实验室陶胜洋博士生有价值的讨论.
  • 相关项目:碳纳米管电灯泡冷光行为的研究
中文摘要:

研究了碳纳米管上负载Y2O3和Y2O3:Eu^3+纳米颗粒的工艺.采用透射电镜、扫描电镜、X射线衍射对负载的效果进行表征并研究了负载产物的发光性能.结果表明,采用化学沉淀法可在碳纳米管上负载平均直径约为10 nm的Y2O3和Y2O3:Eu^3+颗粒.负载的Y2O3:Eu^3+纳米颗粒在波长201 nm处具有明显的主激发峰,而在620 nm处具有较强的主发射峰.与普通的纳米Y2O3:Eu^3+荧光粉相比,激发峰显著蓝移,而发射峰则红移.

英文摘要:

The process of coating 2O^3+ and Y2O3:Eu^3+ nano-particles on the carbon nanotubes (CheFs) was studied. The products were characterized by scanning electron microscope (SEM), transmission electron microscope (TEM) and X-ray diffraction (XRD). Y2O3 and Y2O3:Eu^3+ nano-particles with diameter of about 10 nm can be deposited on the surface of CNTs by chemical coprecipitation method. The Y2O3:Eu^3+ nano- particles coated on the CNTs had a main excitation peak centered at 201 nm and a main emission peak centered at 620 nm. The luminescent spectra of them showed a notable blue shift in excitation spectra and a red shift in emission spectra compared with those of the normal Y2O3:Eu^3+ nano-particles fluorescent powder.

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