0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 0 4 0 -4 -8 -12 -16 -20 log(current) (A) voltage (V) I₀(V) Rs=0 Ω Rs=2 Ω Rs=10 Ω Rs=51 Ω Rs=249 Ω Diode current versus voltage