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Structure

Each measurement routine generates one or more text files that are automatically saved according to the following directory structure: 

[…]\<username>\<start date>\<device name>_<channel>\<start time>\

This path is generated at the start of the measurement. Should the measurement take place over multiple days, the start date remains unchanged and all files are still saved in the same folder. The reason to add start time folder is to separate measurements should multiple be performed on the same day.

For a standard stability test, several files for each device will be generated at the start of and during the measurement:

  1. JV (one for each JV)
  2. Parameter
  3. Tracking

File structure

To make data processing easier, all files have the same general structure, independent of the measurement type. Each file starts with a header section, indicated by the ## Header ## tag, containing all measurement settings. Settings are further subdivided in categories by labels in square brackets.

Note

As the software evolves, settings may be added, modified or deleted. When this happens ensure that any post-processing script can handle this.

The ## Data ## tag indicates where the actual measurement result begins. Data is always stored in a tab-delimited 2D array of values, always containing a row with column headers. In the case of the JV file, a table with the JV parameters and a table with each raw data point of the JV scan is also stored.

## Header ##
[General info]
User    Cicci Research
Device  Sample
Cell area (cm2) 1
Test    Stability (JV)
Date    2024-10-01
Time    12:45:46
Note    SMU 1A

[JV Settings]
Vmin (V)    -0.100
Vmax (V)    1.000
Voltage Step (mV)   20.000
Scan Rate (mV/s)    100.000
Auto-detect Voc Yes
Scan direction  FW then RV
Voltage Range (V)   10V
Current Range (V)   L
Inverted    No
Auto-range  Off

[Cell Settings]
Tipology    Cell
Cell Area (cm2) 1.00
#Cells  1.00
W cell area (cm2)   1.00
#W cells    1.00

## Data ##
...