Hello all, I have a GaAs LED, and I want to determine the saturation current. I have numerous points from 0.5V-2.9V, with currents of 0.1uA-50mA. I have plotted it on semi-log paper, however, the only linear segment is from 1uA-5000uA, and then it begins to curve downwards. I used the linear segment to determine the saturation current, and the value of "n", however, they hardly describe the diode for anything else beyond this linear segment... Have I done something improper for determining these values?(adsbygoogle = window.adsbygoogle || []).push({});

Note: if I do a scatter plot in excel of all my points, the linear segment is rather from 5mA-50mA

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# Determining the saturation current

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