Combined measurement of surface potential and zeta potential at insulator/electrolyte interfaces

Combined measurement of surface potential and zeta potential at insulator/electrolyte interfaces

Simultaneous measurements of relative surface potential and zeta potential, as monitored by streaming potential measurement, were made at the interface between Si/sub 3/N/sub 4/ (on a semiconductor substrate) and aqueous electrolytes of varied pH. The light-addressable-potentiometric-sensor (LAPS) t...

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Bibliographic Details
Published in:TRANSDUCERS '91: 1991 International Conference on Solid-State Sensors and Actuators. Digest of Technical Papers pp. 502 - 505
Main Authors: Bousse, L.J., Mostarshed, S., Hafeman, D.
Format: Conference Proceeding
Language:English
Published: IEEE 1991
Subjects:
Area measurement
Current measurement
Electrodes
Electrokinetics
Insulation
Monitoring
Reservoirs
Silicon
Substrates
Surface impedance
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Summary:Simultaneous measurements of relative surface potential and zeta potential, as monitored by streaming potential measurement, were made at the interface between Si/sub 3/N/sub 4/ (on a semiconductor substrate) and aqueous electrolytes of varied pH. The light-addressable-potentiometric-sensor (LAPS) technique was used to make the simultaneous measurements. The results indicate the zero zeta potential occurred at an electrolyte pH of 3.1. Upon changing pH, approximately 10% of the surface potential change also appeared as a change in zeta potential.< >
ISBN:9780879425852
0879425857
DOI:10.1109/SENSOR.1991.148922