Issue 31, 2008

Viscoelastic, mechanical, and dielectric measurements on complex samples with the quartz crystal microbalance

Abstract

Piezoelectric resonators have been in use as mass-sensing devices for almost half a century. More recently it was recognized that shifts in frequency and bandwidth can come about by a diverse variety of interactions with the sample. The classical “load” consists of a thin film, which shifts the resonance frequency due to its inertia. Other types of loading include semi-infinite viscoelastic media, rough objects contacting the crystal via isolated asperities, mechanically nonlinear contacts, and dielectric films. All these interactions can be analyzed within the small-load approximation. The small-load approximation provides a unified frame for interpretation and thereby opens the way to new applications of the QCM.

Graphical abstract: Viscoelastic, mechanical, and dielectric measurements on complex samples with the quartz crystal microbalance

Article information

Article type
Perspective
Submitted
06 Mar 2008
Accepted
21 May 2008
First published
27 Jun 2008

Phys. Chem. Chem. Phys., 2008,10, 4516-4534

Viscoelastic, mechanical, and dielectric measurements on complex samples with the quartz crystal microbalance

D. Johannsmann, Phys. Chem. Chem. Phys., 2008, 10, 4516 DOI: 10.1039/B803960G

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