Behavior of the Resonant Frequency Shift of the Quartz Crystal Microbalance in NaCl Solution

Abstract

We report the novel characteristics of the series resonant‐frequency shift (ΔF) of the single‐face sealed quartz crystal microbalance (QCM) in an electrolyte solution. In the present study, we used NaCl as an electrolyte. This study revealed that, in an electrolyte solution, the ΔF values vary linearly with an increase in the square root of the density‐viscosity product of the solution, and the immersion angle dependence of ΔF appears. Moreover, we have found that the intercept value of ΔF appears and is brought about by the electric double layer. We also suggest that the ΔF values are independent of the conductivity and the permittivity of the solution.

Keywords:

• Resonant frequency
• Quartz crystal
• Microbalance
• NaCl solution

Acknowledgment

This work was supported, in part, by Grant‐in‐Aid from Scientific Research from the Ministry of Education, Culture, Sports, Science and Technology of Japan (No.17550015), and was also supported, in part, by Kagoshima University.