Influence of roughness on the admittance of the quartz crystal microbalance immersed in liquids
Influence of roughness on the admittance of the quartz crystal microbalance immersed in liquids
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DOI：
10.1021/ac0107610
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发表时间：
2002-02-01
影响因子：
7.4
通讯作者：
Zagidulin, D
中科院分区：
文献类型：
--
作者：
Daikhin, L;Gileadi, E;Zagidulin, D
从理论和实验两方面考虑了表面粗糙度对QCM响应的影响。提出了一种新的理论方法来描述粗糙度对QCM响应的影响，该方法考虑了粗糙度的多尺度性质。在具有广泛的粘度和密度的液体中进行实验，使人们有可能理解，第一次，粗糙度的特性影响QCM实验。当前研究的最重要结论是，为了理解实验数据，必须考虑至少两种类型的粗糙度：轻微和强烈。我们发现，所观察到的频移的测量是不足以解释所观察到的实验数据，和一个完整的分析的阻抗谱是必要的。
The effect of surface roughness on the response of the QCM has been considered, both theoretically and experimentally. A new theoretical approach to the description of the effect of roughness on the response of the QCM is proposed that accounts for the multiscale nature of roughness. Performing experiments in liquids having a wide range of viscosity and density made it possible to understand, for the first time, what characteristics of roughness influence the QCM experiments. The most important conclusion of the current study is that, to understand the experimental data, one has to take into account at least two types of roughness: slight and strong. We found that measurements of the frequency shift observed are not sufficient for the interpretations of the experimental data observed, and a full analysis of the impedance spectrum is called for.