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I was trying to find other experiments that required getting an IV curve but all of them seem to be applying voltage and measuring the current.

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  • \$\begingroup\$ I like to use a variable current source, bipolar in fact, for doing I vs V sweeps in just that way. \$\endgroup\$ – jonk Sep 18 '18 at 20:03
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Yes, this would work.

And if you want to measure a curve where you have essentially the same output voltage for different currents, this is pretty much the only way.

GSOT08C VR/IR
source: Vishay GSOT08C datasheet

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