|The PSD-2 amplifier and preamplifier
are also capable of SLEIS (Scanning Localized
Electrochemical Impedance Spectroscopy) measurements below
the 1.0 kHz range (typically 30-100Hz). Essentially, one leaves the microelectrode
stationary (non-vibrating) and then drives the sample with the
oscillators in the PSD-2, either directly, or via a potentiostat.
Another mode is available as well to allow one axis to
measure as an SVET and the other to measure as an SLEIS
simultaneously while scanning the probe over a sample under
potentiostat control. These methods of measurement provide the
user with high sensitivity and a spatial resolution limited by the
electrode tip, typically 5-50 Ám diameter.
complete SLEIS system contains:
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