Keithley 4200A-SCS

Section
4: Multi-frequency capacitance-voltage unit Model 4200A-SCS Parameter Analyzer
Reference Manual
4-98 4200A-901-01 Rev. C / February 2017
fwd-ivsweep Analyze sheet
The test data is displayed in the Analyze sheet:
• AnodeI: Measured current.
• AnodeV: Forced voltage.
• Formulas: Formulator calculation results.
rev-ivsweep test
Make sure the solar cell is connected to the 4200-SMU (see Connections (on page 4-94)).
This test uses a SMU to perform a reversed-bias voltage sweep. Current is measured on each step of
the sweep. An I (absolute value) versus V graph is generated from the collected data.
When the test is started, the SMU sweeps from 0 V to −600 mV in −5 mV steps. A total of 121 current
measurements are made.
rev-ivsweep Analyze sheet
The test data is displayed in the Analyze sheet:
• AnodeI: Measured current.
• AnodeV: Forced voltage.
cvsweep-solarcell test
Make sure the solar cell is connected to the 4210-CVU (see 4210-CVU connections (on page 4-5)).
This test uses a CVU to perform a capacitance voltage sweep on a solar cell. Capacitance is
measured on each step of the sweep. A C versus V graph is generated from the collected data.
cvsweep-solarcell Analyze sheet
The test data is displayed in the Analyze sheet:
• Cp_AC: Measured parallel capacitance.
• Cp_AC: Measured conductance.
• DCV_AC: Forced DC bias voltage.
• F_AC: Forced test frequency.
• CVU1S: Status code for each measurement. Rows highlighted in blue indicate a fault. For details,
see Measurement status (on page 6-191
).
AC = Anode to cathode.