论文标题
阻抗光谱：纳米材料的阻抗光谱
Impedance spectroscopy: Impedance spectroscopy of nanomaterials
论文作者
论文摘要
固态阻抗光谱能够对电子不均匀的凝分物质的电阻和电容性能有各种贡献，可以分别进行解变和表征。不同的贡献是由样品中的电子不同区域产生的，在理想情况下，每个区域都可以用一个标准的RC元素表示。在下文中，审查和讨论了阻抗光谱，不同类型的实验设置和几个实验阻抗数据集的示例的基本原理。强调了与该技术应用于纳米材料相关的数据分析和等效电路建模过程。与宏观散装样品相比，纳米材料的不同尺寸和结构导致需要详细分析和高级等效电路模型的更复杂数据。
Solid state impedance spectroscopy enables the various contributions to the resistive and capacitive properties of electronically inhomogeneous condensed matter to be deconvoluted and characterized separately. The different contributions arise from electronically distinct areas in the sample, which can in an ideal case be represented each by one standard RC element. In the following, the basic principles of impedance spectroscopy, different types of experimental setups and several examples of experimental impedance data sets from nanostructured materials are reviewed and discussed. The data analysis and equivalent circuit modelling processes which are relevant for the application of this technique to nanomaterials are emphasized. The different dimensions and structure of nanomaterials as compared to macroscopic bulk samples leads to quite different and sometimes more complex data that require detailed analysis and advanced equivalent circuit models.
