Section 6: Make I-V measurements on a solar cell 4200A-SCS Parameter Analyzer User's Manual
6-2 4200A-900-01 Rev. D/April 2020
Device connections
Connect your preamplifier or SMU output terminals to the solar cell in a 4-wire configuration. This
provides the best measurement accuracy and eliminates the effects of the resistance of the test leads
and unwanted voltage drops.
Hazardous voltages may be present on all output and guard terminals. To prevent electrical
shock that could cause injury or death, never connect or disconnect from the 4200A-SCS
while the output is on.
To prevent electric shock, test connections must be configured such that the user cannot
come in contact with test leads, conductors, or any device under test (DUT) that is in contact
with the conductors. It is good practice to disconnect DUTs from the instrument before
powering up the instrument. Safe installation requires proper shields, barriers, and grounding
to prevent contact with test lead and conductors.
Device connection schematic
Connections to the solar cell can be made using two SMUs or one SMU and the Ground Unit (GNDU).
The next figure shows the connection schematic for the application.
Figure 71: Solar cell device connection schematic
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