【摘要】 配制了钡铁氧体和PSS(polysodium 4 styrenesulfonate)溶胶 ,并利用静电自组装的方法在普通玻璃板上组装了A/B型纳米多层膜。考察了纳米多层膜的吸波性能 ,利用紫外 -可见分光光度计测量了纳米多层膜的层厚。结果表明 ,总层数为 30个双层、总厚度为 2 0 0nm左右的纳米多层膜有显著的吸波效应 ,在频率为 8GHz～ 18GHz范围内 ,最大吸波率达到 16 85dB。从量子理论出发探讨了吸波机理。更多还原

【Abstract】 Colloidal barium ferrite and colloidal PSS (poly sodium 4-styrenesulfonate)were prepared and a nano multi-layers film of A/B type was formed on the surface of glass plate by electrostatic self-assembly. The wave-absorbing property of the film was measured and the results show that the radar wave is absorbed between 8GHz and 18 GHz and the reflectivity reached 16.85dB. The thickness of the film and the relation between thickness and self-assembling time are measured by UV-VS spectrophotometer. The wave-absorbing mechanism of nano multi-layers film was discussed based on quantum theory.更多还原