Assembly of linked electrodes (usually
microelectrodes,
ultramicroelectrodes or
nanoelectrodes) acting as a single electrode.
Notes: - By replacement of macroelectrodes with dimensions in the millimetre or centimetre range by a microelectrode array, the current density can be increased by orders of magnitude, as well as the ratio of faradaic to capacitive currents. When array electrodes are employed as generator-collector systems with two distinct potentials applied, the diffusion distance between electrodes becomes the main factor in controlling the total current.
- Interdigitated array electrodes are commonly employed in electrochemical sensors.
Source:
PAC, 2020, 92, 641. 'Terminology of Electrochemical Methods of Analysis (IUPAC Recommendations 2019)' on page 661 (https://doi.org/10.1515/pac-2018-0109)