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  • Park AFM
    Electrical Modes
    For engineers and researchers that need accurate data on conductance, sample resistance,
    and other electrical and topographic properties, Park offers a range of electrical scanning modes.

Time-resolved Photocurrent Mapping (PCM)

Enabling Innovation in Photosensitive Materials Research

Our PCM mode measures photoelectric response to a time-resolved illumination without interference from unwanted light sources, including the feedback laser. This mode features a laser illumination module and acquisition and analysis software.

time-resolved-photocurrent-mapping-f1-a

A typical photocurrent response to a time-resolved illumination.
The current between the sample and a voltage-biased cantilever is measured before, during, and after the illumination.

time-resolved-photocurrent-mapping-f1-b

Point-by-point mapping of photocurrent spectroscopy.
Photocurrent response in time domain is acquired in each grid point defined on a sample.

 
 

 

 
 

Electrical Modes