Applications of the Quartz Crystal Microbalance to Electrochemistry
Abstract
The quartz crystal microbalance (QCM) is a piezoelectric device capable of extremely sensitive mass measurements. It oscillates in a mechanically resonant shear mode by application of an alternating, high frequency electric field using electrodes which are usually deposited on both sides of the disk. These devices have been used for many years to measure the masses of thin films in various types of deposition processes. To the extent that the density of the deposit is known, the thickness may be calculated, so these devices are used in a number of commercial film thickness monitors. Konash, Bastiaans and Nomura demonstrated the use of the QCM in the liquid environment for the determination of mass changes at the crystal surface. These reports made clear the potential utility of the QCM for accurate, in situ determinations of extremely small mass changes of the crystal electrodes or films deposited on them. Partial contents of this report include: Experimental Methods, Effects of Various Parameters on Crystal Oscillation; Correlations Between Frequency Changes and Electrochemical Parameters; Monolayer Systems; Electrosorption of Oxides and Halides on Au; Underpotential Deposition of Metals; Absorption/desorption of Surfactant Molecules; Multilayer Deposition and Dissolution; Deposition and Dissolution of Electrochromic Films of Diheptylviologen Bromide; Polymer Films; Redox Polymers; and Conduction Polymers.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 29, 1989
- Accession Number
- ADA209853
Entities
People
- Daniel A. Buttry
Organizations
- University of Wyoming